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IVT_errorcodes.json
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IVT_errorcodes.json
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{
"1001": {
"level": "Customer",
"title": "No communication betw. system controller and remote control",
"description": "Room sensor will display error code A21/A22/A23/A24 depending on which heating circuit it controls. The Room sensor has first been installed successfully. Then the EMS bus signal has gone absent from the parent controller (display HMC300/HPC400).",
"alternatives": [
{
"reason": "Poor EMS connection between display and installer module.",
"action": "Check both ends of EMS cabling between the boards."
}
]
},
"1010": {
"level": "Customer",
"title": "No communication via EMS BUS connection",
"description": "The local device hasn't received its EMS token from the EMS bus master for a certain amount of time.",
"alternatives": [
{
"reason": "Break/disruption in EMS connection.",
"action": "Check that accessories for the EMS bus (room control, mixing module, etc.) are properly connected."
},
{
"reason": "Interference on the EMS bus.",
"action": "Check that the EMS bus (GND) is not in contact with the chassis. On some appliances it has happened that the 3,5 mm tele female connector attached to the BBT port of the inst.module [terminal 23,24,25] is in contact with the chassis. Then interference can enter the EMS bus via ground. Insulate the connector."
}
],
"svdescription": "St\u00f6rningar i kommunikationsbussen EMS. Kontakta Er installat\u00f6r.",
"svheader": "Ingen kommunikation via bussf\u00f6rbindelsen EMS. ",
"svheatpump": "IVT AirSplit 200 Luft/vattenv\u00e4rmepump "
},
"1051": {
"level": "Customer",
"title": "No communication with external room temp. sensor module",
"description": "The module for external room temperature sensor has not been developed. The alarm is triggered if the installer still selects this module to control a heating circuit.",
"alternatives": [
{
"reason": "Incorrect setting in software. Service menu >> Set heating/cooling >> Heating circ. 1 >> Ext. room temp. sensor, shall always be set to No.",
"action": "The correct setting is made in Service menu >> Set heating/cooling >> Heating circ. 1 >> Programming unit = RC100/CR10. See room sensors' installer guide for more information."
}
]
},
"1052": {
"level": "Customer",
"title": "No communication with external room temp. sensor module",
"description": "The module for external room temperature sensor has not been developed. The alarm is triggered if the installer still selects this module to control a heating circuit.",
"alternatives": [
{
"reason": "Incorrect setting in software. Service menu >> Set heating/cooling >> Heating circ. 2 >> Ext. room temp. sensor, shall always be set to No.",
"action": "The correct setting is made in Service menu >> Set heating/cooling >> Heating circ. 2 >> Programming unit = RC100/CR10. See room sensors' installer guide for more information."
}
]
},
"1053": {
"level": "Customer",
"title": "No communication with external room temp. sensor module",
"description": "The module for external room temperature sensor has not been developed. The alarm is triggered if the installer still selects this module to control a heating circuit.",
"alternatives": [
{
"reason": "Incorrect setting in software. Service menu >> Set heating/cooling >> Heating circ. 3 >> Ext. room temp. sensor, shall always be set to No.",
"action": "The correct setting is made in Service menu >> Set heating/cooling >> Heating circ. 3 >> Programming unit = RC100/CR10. See room sensors' installer guide for more information."
}
]
},
"1054": {
"level": "Customer",
"title": "No communication with external room temp. sensor module",
"description": "The module for external room temperature sensor has not been developed. The alarm is triggered if the installer still selects this module to control a heating circuit.",
"alternatives": [
{
"reason": "Incorrect setting in software. Service menu >> Set heating/cooling >> Heating circ. 4 >> Ext. room temp. sensor, shall always be set to No.",
"action": "The correct setting is made in Service menu >> Set heating/cooling >> Heating circ. 4 >> Programming unit = RC100/CR10. See room sensors' installer guide for more information."
}
]
},
"1081": {
"level": "Customer",
"title": "Two master prog units in the system.",
"description": "The room sensor for heating circuit 1 has been incorrectly configured as a controller (\"CO\"/\"SC\").",
"alternatives": [
{
"reason": "The display unit in the indoor unit is always the controller in the system, and more than one is not allowed.",
"action": "Configure the room sensor for remote control \"Fb\". See room sensors' installation guide for more information."
}
],
"svdescription": "Rumstermostaten \u00e4r feladresserad. Kontakta installat\u00f6ren.",
"svheader": "Tv\u00e5 huvudreglercentraler i systemet.",
"svheatpump": "IVT AirSplit 200 Luft/vattenv\u00e4rmepump "
},
"1082": {
"level": "Customer",
"title": "Two master prog units in the system.",
"description": "The room sensor for heating circuit 2 has been incorrectly configured as a controller (\"CO\"/\"SC\").",
"alternatives": [
{
"reason": "The display unit in the indoor unit is always the controller in the system, and more than one is not allowed.",
"action": "Configure the room sensor for remote control \"Fb\". See room sensors' installation guide for more information."
}
]
},
"1083": {
"level": "Customer",
"title": "Two master prog units in the system.",
"description": "The room sensor for heating circuit 3 has been incorrectly configured as a controller (\"CO\"/\"SC\").",
"alternatives": [
{
"reason": "The display unit in the indoor unit is always the controller in the system, and more than one is not allowed.",
"action": "Configure the room sensor for remote control \"Fb\". See room sensors' installation guide for more information."
}
]
},
"1084": {
"level": "Customer",
"title": "Two master prog units in the system.",
"description": "The room sensor for heating circuit 4 has been incorrectly configured as a controller (\"CO\"/\"SC\").",
"alternatives": [
{
"reason": "The display unit in the indoor unit is always the controller in the system, and more than one is not allowed.",
"action": "Configure the room sensor for remote control \"Fb\". See room sensors' installation guide for more information."
}
]
},
"3061": {
"level": "Customer",
"title": "No communication with mixer module",
"description": "A mixing module has previously been installed for heating circuit 1 and now the installer module is unable to communicate with the rooms sensor over the EMS bus.",
"alternatives": [
{
"reason": "Poor connection or improperly installed EMS cable between installer module and mixing module.",
"action": "Check EMS cabling."
}
]
},
"3062": {
"level": "Customer",
"title": "No communication with mixer module",
"description": "A mixing module has previously been installed for heating circuit 2 and now the installer module is unable to communicate with the rooms sensor over the EMS bus.",
"alternatives": [
{
"reason": "Poor connection or improperly installed EMS cable between installer module and mixing module.",
"action": "Check EMS cabling."
}
]
},
"3063": {
"level": "Customer",
"title": "No communication with mixer module",
"description": "A mixing module has previously been installed for heating circuit 3 and now the installer module is unable to communicate with the rooms sensor over the EMS bus.",
"alternatives": [
{
"reason": "Poor connection or improperly installed EMS cable between installer module and mixing module.",
"action": "Check EMS cabling."
}
]
},
"3064": {
"level": "Customer",
"title": "No communication with mixer module",
"description": "A mixing module has previously been installed for heating circuit 4 and now the installer module is unable to communicate with the rooms sensor over the EMS bus.",
"alternatives": [
{
"reason": "Poor connection or improperly installed EMS cable between installer module and mixing module.",
"action": "Check EMS cabling."
}
]
},
"3071": {
"level": "Customer",
"title": "No communication with remote control",
"description": "A room sensor has previously been installed for heating circuit 1 and now the installer module is unable to communicate with the rooms sensor over the EMS bus.",
"alternatives": [
{
"reason": "Poor connection or improperly installed EMS cable between installer module and room sensor.",
"action": "Check EMS cabling."
}
],
"svdescription": "D\u00e5lig kontakt i EMS-kabel mellan rumstermostat och styrkort. Kan \u00e4ven vara st\u00f6rning p.g.a. att en starkstr\u00f6mskabel ligger f\u00f6r n\u00e4ra EMS-kabeln. Kontakta Er installat\u00f6r",
"svheader": "Ingen kommunikation med rumsenhet.",
"svheatpump": "IVT AirSplit 200 Luft/vattenv\u00e4rmepump "
},
"3072": {
"level": "Customer",
"title": "No communication with remote control",
"description": "A room sensor has previously been installed for heating circuit 2 and now the installer module is unable to communicate with the rooms sensor over the EMS bus.",
"alternatives": [
{
"reason": "Poor connection or improperly installed EMS cable between installer module and room sensor.",
"action": "Check EMS cabling."
}
]
},
"3073": {
"level": "Customer",
"title": "No communication with remote control",
"description": "A room sensor has previously been installed for heating circuit 3 and now the installer module is unable to communicate with the rooms sensor over the EMS bus.",
"alternatives": [
{
"reason": "Poor connection or improperly installed EMS cable between installer module and room sensor.",
"action": "Check EMS cabling."
}
]
},
"3074": {
"level": "Customer",
"title": "No communication with remote control",
"description": "A room sensor has previously been installed for heating circuit 4 and now the installer module is unable to communicate with the rooms sensor over the EMS bus.",
"alternatives": [
{
"reason": "Poor connection or improperly installed EMS cable between installer module and room sensor.",
"action": "Check EMS cabling."
}
]
},
"3091": {
"level": "Customer",
"title": "A61 on room sensor. Room temperature sensor faulty",
"description": "The thermistor inside the room sensor for heating circuit 1 is defective. EMS communication is working.",
"alternatives": [
{
"reason": "Broken room sensor.",
"action": "The room sensor must be replaced."
}
]
},
"3092": {
"level": "Customer",
"title": "A62 on room sensor. Room temperature sensor faulty",
"description": "The thermistor inside the room sensor for heating circuit 2 is defective. EMS communication is working.",
"alternatives": [
{
"reason": "Broken room sensor.",
"action": "The room sensor must be replaced."
}
]
},
"3093": {
"level": "Customer",
"title": "A63 on room sensor. Room temperature sensor faulty",
"description": "The thermistor inside the room sensor for heating circuit 3 is defective. EMS communication is working.",
"alternatives": [
{
"reason": "Broken room sensor.",
"action": "The room sensor must be replaced."
}
]
},
"3094": {
"level": "Customer",
"title": "A64 on room sensor. Room temperature sensor faulty",
"description": "The thermistor inside the room sensor for heating circuit 4 is defective. EMS communication is working.",
"alternatives": [
{
"reason": "Broken room sensor.",
"action": "The room sensor must be replaced."
}
]
},
"5201": {
"level": "Installer",
"title": "Warning Outside temp. sensor T1 open circuit",
"description": "Warning if the resistance of the outdoor sensor T1 > 179 kOhm (corresponding to a temperature < -50\u00b0C).",
"alternatives": [
{
"reason": "Outdoor sensor T1 has not been installed.",
"action": "Install outdoor sensor."
},
{
"reason": "Break on signal cable between installer module and sensor.",
"action": "Check signal cable and connection to installer module."
}
]
},
"5202": {
"level": "Installer",
"title": "Warning Outdoor temp. sensor T1 short circuit",
"description": "Warning if the resistance of the outdoor sensor T1 < 824 Ohm (corresponding to a temperature > 70\u00b0C).",
"alternatives": [
{
"reason": "Outdoor sensor T1/signal cable shorted.",
"action": "Check signal cable."
}
]
},
"5203": {
"level": "Customer",
"title": "Alarm Z1 Temperature too high on compressor control system",
"description": "Internal high temperature protection in inverter. Alarm if 3 warnings (code 5302) are triggered witin 3 hours, or if the temperature continuously exceeds 80\u00b0C for 30 minutes.",
"alternatives": [
{
"reason": "See warning 5302.",
"action": "See warning 5302."
},
{
"reason": "Defective inverter.",
"action": "Replace inverter."
}
]
},
"5204": {
"level": "Installer",
"title": "Warning Z1 Flow temperature sensor T0 open circuit",
"description": "Warning if the resistance of flow sensor T0 > 30 kOhm (<0\u00b0C).",
"alternatives": [
{
"reason": "Break on signal cable between installer module and sensor.",
"action": "Check signal cable and screw terminal on installer module."
}
]
},
"5205": {
"level": "Installer",
"title": "Warning Z1 Flow temperature sensor T0 short circuit",
"description": "Warning if the resistance of flow sensor T0 < 500 Ohm (>110\u00b0C).",
"alternatives": [
{
"reason": "Flow sensor T0/signal cable shorted.",
"action": "Check signal cable."
}
]
},
"5206": {
"level": "Customer",
"title": "Alarm Z1 Flow temperature sensor T0 failure",
"description": "Alarm if 3 warnings are registered withing 3 hours, or if the circuit for flow sensor T0 is continuously shorted/broken for 30 minutes.",
"alternatives": [
{
"reason": "See possible causes for the warnings 5204 and 5205.",
"action": "Se possible actions for the warnings 5204 and 5205."
},
{
"reason": "Flow sensor T0 value is out of range (> 30 kOhm or < 500 Ohm).",
"action": "Measure the resistance of the temperature sensor. If the value is out of range the signal cable may have a break or short. Replace signal cable or sensor T0 if necessary."
},
{
"reason": "Defective installer module.",
"action": "If sensor T0 measures the correct value, and the same warning (5204/5205) remains when the sensor is connected, replace the installer module."
}
]
},
"5207": {
"level": "Installer",
"title": "Warning Temperature sensor TC1 open circuit",
"description": "Warning if open circuit (>179 kOhm) on sensor TC1 after 3 registered errors within 2 hours.",
"alternatives": [
{
"reason": "Screw terminal on installer module not properly tightened.",
"action": "Check screw terminal for TC1."
},
{
"reason": "Heat carrier outlet sensor TC1/signal cable open circuit.",
"action": "With TC1 disconnected from installer module, compare measured Ohm value with sensor table in documentation. Replace sensor if necessary."
},
{
"reason": "Defective installer module.",
"action": "Replace installer module."
}
]
},
"5208": {
"level": "Installer",
"title": "Warning Temperature sensor TC1 short circuit",
"description": "Warning short circuit (<3900 Ohm) on sensor TC1, if 3 registered errors within 2 hours.",
"alternatives": [
{
"reason": "Heat carrier outlet sensor TC1/signal cable shorted.",
"action": "With TC1 disconnected from installer module, compare measured Ohm value with sensor table in documentation. Repair sensor cable or replace sensor if necessary."
},
{
"reason": "Defective installer module.",
"action": "Replace installer module."
}
]
},
"5209": {
"level": "Customer",
"title": "Alarm Temperature sensor TC1 fault",
"description": "Alarm after 3 errors within 3 hours, or 15 minutes of continuously broken/shorted cicuit for sensor TC1.",
"alternatives": [
{
"reason": "Se possible causes for alarm code 5207, 5208.",
"action": "See actions for alarm codes 5207, 5209."
}
]
},
"5213": {
"level": "Installer",
"title": "Warning Z1 Inlet temp. sensor TC0 open circuit",
"description": "Warning if the resistance of heat carrier return-sensor TC0 > 30 kOhm (<0\u00b0C).",
"alternatives": [
{
"reason": "Screw terminal in installer module, for heat carrier return sensor TC1, not properly tightened.",
"action": "Check screw terminal for TC1."
},
{
"reason": "Heat carrier return sensor TC0/signal cable broken.",
"action": "With sensor disconnected from the installer board, measure the Ohm value and compare it to table value in documentation. Repair cable or replace sensor if necessary."
},
{
"reason": "Defective installer module.",
"action": "Replace installer module."
}
]
},
"5214": {
"level": "Installer",
"title": "Warning Z1 Inlet temp. sensor TC0 short circuit",
"description": "Warning if the resistance of heat carrier return-sensor TC0 < 500 Ohm (>110\u00b0C).",
"alternatives": [
{
"reason": "Heat carrier return sensor TC0/signal cable shorted.",
"action": "With sensor TC0 disconnected from the installer board, measure the resistance and compare it to sensor table in documentation. Replace sensor if necessary."
},
{
"reason": "Defective installer board.",
"action": "Replace installer board."
}
]
},
"5215": {
"level": "Customer",
"title": "Alarm Z1 Inlet temperature sensor TC0 fault",
"description": "Alarm if 3 warnings are registered within 3 hours, or if the circuit for sensor TC0 is continuously broken/shorted for 15 minutes.",
"alternatives": [
{
"reason": "See possible causes for alarm codes 5213, 5214.",
"action": "See possible actions for alarm codes 5213, 5214."
}
]
},
"5234": {
"level": "Installer",
"title": "Warning Pool temp. sensor TP1 open circuit",
"description": "Warning for interruption of the circuit (>179 kOhm) on sensor TP1, after 3 faults within 2 hours.",
"alternatives": [
{
"reason": "Pool temperature sensor TP1/signal cable interruption.",
"action": "Measure resistance of sensor TP1/signal cable, and compare value to sensor table in documentation. TP1 needs to disconnected from the I/O modulen during measurement. Repair cable or replace sensor if necessary."
},
{
"reason": "Screw terminal for sensor TP1 is not properly tightened.",
"action": "Tighten screws."
},
{
"reason": "Defective I/O module.",
"action": "Replace I/O module."
}
]
},
"5235": {
"level": "Installer",
"title": "Warning Pool temp. sensor TP1 short circuit",
"description": "Warning if circuit for pool temperature sensor TP1 is shorted. Warning is triggered if three detected faults within 2 hours.",
"alternatives": [
{
"reason": "Pool temperature sensor TP1/signal cable shorted.",
"action": "Measure resistance of sensor TP1/signal cable, and compare value to sensor table in documentation. TP1 needs to disconnected from the I/O modulen during measurement. Repair cable or replace sensor if necessary."
},
{
"reason": "Defective I/O module.",
"action": "Replace I/O module."
}
]
},
"5236": {
"level": "Customer",
"title": "Alarm Pooltemperature sensor TP1 fault",
"description": "Alarm if 3 errors within 3 hours, or if circuit for pool temperature sensor TP1 is broken/shorted continuously for 15 minutes.",
"alternatives": [
{
"reason": "Se possible causes for codes 5234, 5235.",
"action": "Se trouble-shooting advice for codes 5234, 5235."
}
]
},
"5237": {
"level": "Installer",
"title": "Warning DHW temp. sensor TW1 open circuit",
"description": "Warning if the resistance for hot water sensor TW1 > 30 kOhm (<0\u00b0C). [IVT] Warning if the resistance for hot water sensor TW1 > 36 kOhm (<0\u00b0C). [Bosch]",
"alternatives": [
{
"reason": "Screw terminal for TW1 on installer module not properly tightened.",
"action": "Check screw terminal."
},
{
"reason": "Sensor TW1 or signal cable is broken.",
"action": "With the sensor disconnected from the installer board, meausre and compare the resistance to sensor table in documentation. Repair cable or replace sensor if necessary."
},
{
"reason": "Defective installer board.",
"action": "Replace installer board."
}
]
},
"5239": {
"level": "Customer",
"title": "Alarm DHW temp. sens. TW1 fault",
"description": "Alarm is triggered if 3 warnings have been registered within 3 hours, or if the circuit for sensor TW1 is continuously broken/shorted for 15 minutes.",
"alternatives": [
{
"reason": "Se possible causes for warning codes 5237 and 5238.",
"action": "See possible actions for warning codes 5237 and 5238."
}
]
},
"5246": {
"level": "Customer",
"title": "Alarm Z1 Electr.boost.heater E2 high li. saf. cut-out or press.reg. triggered",
"description": "The alarm circuit has two guards connected in series: The overheating protector for the electrical heater is triggered. The pressure guard MC1 for the heating system is triggered due to pressure < 0,5 bar. Either of these two can cause the alarm.",
"alternatives": [
{
"reason": "Low system pressure. Air in the heating system.",
"action": "De-air heating system according to instruction in the installer guide. Refill heating system."
},
{
"reason": "Clogged filterball SC1 on return pipe.",
"action": "Clean filter ball SC1."
},
{
"reason": "Bad circulation in the heating carrier/heating system.",
"action": "Check adjustment valves/thermostats for heating system."
},
{
"reason": "Fuse F1 is broken.",
"action": "Replace fuse F1."
},
{
"reason": "Defective system pressure guard MC1.",
"action": "Replace system pressure guard."
},
{
"reason": "Defective overheating protector.",
"action": "Verify breaking temperature (96\u00b0C) for the overheating protector."
},
{
"reason": "Defective installer module, PWM signal for the circulation pump missing.",
"action": "Disconnect PWM signal from terminal 40,41 on installer module. The speed of the circulation pump should increase to 100%."
},
{
"reason": "Fuse F50 on installer module is broken.",
"action": "Replace fuse F50."
},
{
"reason": "230 V supply missing on installer module.",
"action": "Ensure that supply voltage is 230 V on installer module."
},
{
"reason": "Defective installer module.",
"action": "Replace installer module."
},
{
"reason": "Defective circulation pump.",
"action": "Replace circulation pump."
},
{
"reason": "Contactor for electrical heater has got jammed in closed (active) position.",
"action": "Check / replace contactor."
}
],
"svdescription": "Antingen \u00e4r systemtrycket i v\u00e4rmeanl\u00e4ggningen under 0,5 bar, eller s\u00e5 har \u00f6verhettningsskyddet l\u00f6st ut. Se instruktionsfilmer via l\u00e4nken.",
"svheader": "\u00d6verhettningsskydd el. systemtryckvakt har l\u00f6st ut. ",
"svheatpump": "IVT AirSplit 200 Luft/vattenv\u00e4rmepump "
},
"5252": {
"level": "Installer",
"title": "Warning Z1 Restr. in flow rate btw. outdoor and ind. unit (check strainer)",
"description": "Warning when the heat carrier delta >13K in heating mode, or >7K in cooling mode.",
"alternatives": [
{
"reason": "Bad circulation in the heating carrier/heating system.",
"action": "Check adjustment valves/thermostats for heating system."
}
]
},
"5265": {
"level": "Installer",
"title": "Warning Z1 PCB disconnected",
"description": "Bad connection or interference on CANbus between heat pump and indoor unit.",
"alternatives": [
{
"reason": "Bad CANbus connections on installer board (indoor unit) or I/O board (outdoor unit).",
"action": "Check CANbus connections on installer board and I/O board."
},
{
"reason": "Open circuit/break on CANbus cable between indoor and outdoor unit.",
"action": "Replace CANbus cable."
},
{
"reason": "Incorrect type of CANbus cable. Read printed documentation for further info.",
"action": "Change to proper type of cable."
},
{
"reason": "CANbus cable is placed together with power supply to heat pump. Interference can be generated by electromagnetic induction.",
"action": "Separate CANbus and power supply by at least 100 mm."
},
{
"reason": "Incorrect earthing of CANbus cable.",
"action": "Remove/connect cable shield to/from earth."
}
]
},
"5266": {
"level": "Customer",
"title": "Alarm Z1 PCB disconnected",
"description": "Alarm after 3 warnings within 3 hours, or continuous disruption in 15 minutes.",
"alternatives": [
{
"reason": "See possible causes for warning 5265.",
"action": "See actions for alarm 5265."
}
]
},
"5269": {
"level": "Customer",
"title": "Alarm Z1 Additional electric heater EE too high temperature",
"description": "Alarm when sensor TC1>87\u00b0C. The alarm is automatically acknowledged/reset when TC1<80\u00b0C.",
"alternatives": [
{
"reason": "Dirt in filter ball SC1 on return line.",
"action": "Clear system filter/filter ball SC1."
},
{
"reason": "Poor circulation in heat transfer system/heating system.",
"action": "Check adjustment valves/thermostats for heating system. Ensure adequate flow."
},
{
"reason": "Defective TC1 sensor.",
"action": "With TC1 disconnected from the installer module, compare its measured value to sensor table in documentation. Replace sensor TC1 if necessary."
}
],
"svdescription": "Fl\u00f6desproblem. Vanligaste orsaken \u00e4r luft i v\u00e4rmesystemet, igensatt partikelfilter eller att termostaterna p\u00e5 v\u00e4rmesystemet \u00e4r nerstrypta s\u00e5 att fl\u00f6det blir f\u00f6r l\u00e5gt. Reng\u00f6r partikelfiltret och lufta v\u00e4rmesystemet. Se instruktionsfilmer knappen h\u00e4r bredvid.",
"svheader": "Eltillskott F\u00f6r h\u00f6g temperatur . ",
"svheatpump": "Vent 202 Fr\u00e5nluftsv\u00e4rmepump"
},
"5271": {
"level": "Customer",
"title": "Alarm Heating circuit 1 high flow temperature",
"description": "Alarm when sensor T0 > \"Max. flow temperature\" set point value + 5 degrees, for 10 seconds. The alarm is blocked for 5 minutes after a DHW cycle.",
"alternatives": [
{
"reason": "Defective T0 sensor.",
"action": "With sensor disconnected from the installer board, compare sensor resistans to table values for T0 found in the documentation."
},
{
"reason": "Low flow in heating system.",
"action": "Clean filter ball on return pipe. Check adjustment valves and thermostats for the heating system."
},
{
"reason": "The system is in heating mode but the diverter valve has not switched over to DHW.",
"action": "Check that 230 V is available on terminal 53 (VW1) during DHW mode. If 230 V during DHW mode, replace the motor/cable for the diverter valve. If voltage is missing during DHW mode, replace the installer module."
}
],
"svdescription": "Fl\u00f6desproblem. Vanligaste orsaken \u00e4r luft i v\u00e4rmesystemet, igensatt partikelfilter eller att termostaterna p\u00e5 v\u00e4rmesystemet \u00e4r nerstrypta s\u00e5 att fl\u00f6det blir f\u00f6r l\u00e5gt. Reng\u00f6r partikelfiltret och lufta v\u00e4rmesystemet. Se instruktionsfilmer knappen h\u00e4r bredvid.",
"svheader": "Larm v\u00e4rmekrets 1 H\u00f6g framledn.temp. ",
"svheatpump": "Vent 202 Fr\u00e5nluftsv\u00e4rmepump"
},
"5272": {
"level": "Customer",
"title": "Alarm External heater EM is not operational",
"description": "Alarm for external additional heater/overheating protector. Alarm is triggered if 230 V is detected on terminal 64 on installer module.",
"alternatives": [
{
"reason": "See possible causes for alarm 5246.",
"action": "Se actions for alarm 5246."
},
{
"reason": "Tripped fuse at distrubution box.",
"action": "Replace/reset fuses at distribution box."
}
]
},
"5273": {
"level": "Customer",
"title": "Alarm Z1 Phase monitoring",
"description": "Alarm if phase is missing. Only applicable for 3-phase models. 1-phase: If L1 is missing the indoor unit shuts down. If L3 is missing the heat pump shuts down.",
"alternatives": [
{
"reason": "Tripped fuse in indoor unit (tower).",
"action": "Reset fuse in indoor unit."
},
{
"reason": "Phase/phases missing on terminals for supply voltage in heat pump.",
"action": "Check that all phases are properly connected and that each one carries voltage."
},
{
"reason": "Phase/phases missing on terminals for supply voltage on EMI filter in the inverter.",
"action": "Check that all phases are available on terminals for EMI filter."
},
{
"reason": "If voltage is present on all phases connected to the EMI filter, and alarm remains, the inverter is broken.",
"action": "Replace inverter."
}
]
},
"5275": {
"level": "Customer",
"title": "Alarm Electric anode is out of order",
"description": "Alarm if voltage > 1 V DC on terminal 45, 46 on installer module, for longer than 6 hours.",
"alternatives": [
{
"reason": "LED on electrical anode board is lit red.",
"action": "Check connection/cable on terminal X2, and electrical anode rod in cylinder."
},
{
"reason": "Check that the LED is lit green on the electrical anode board.",
"action": "If LED is lit green, check that voltage exceeds 1 V DC on terminal 45, 46 on installer module."
},
{
"reason": "If voltage > 1V DC on terminal 45,46, the installer module is defective.",
"action": "Replace installer module."
},
{
"reason": "Green LED on electrical anode board is not turned on.",
"action": "Ensure that 230V is available on terminal X1 on electrical anode board."
},
{
"reason": "If 230 V is available on terminal X1If green LED on electrical anode board is turned off, the board is broken.",
"action": "Replace electrical anode board."
}
]
},
"5276": {
"level": "Customer",
"title": "Alarm Z1 Pressure in brine circuit too low",
"description": "Alarm if the circuit for pressure guard, external input I1-I2-I3-I4, is broken.",
"alternatives": [
{
"reason": "Pressure is below chosen limit.",
"action": "Check the pressure of cold carrier."
}
]
},
"5284": {
"level": "Installer",
"title": "Warning Last thermal disinfection failed",
"description": "The domestic hot water temperature, sensor TW1, has not reached 65\u00b0C within 180 minutes.",
"alternatives": [
{
"reason": "Water is continuously tapped from the cylinder.",
"action": "Stop such continuous usage or change (prolong) the time for thermal disinfection."
},
{
"reason": "The electrical heaters output power is set too low in relation to hot water volume.",
"action": "If the fuse requires the heater to run at limited power, you may need to allow a longer time for thermal disinfection. The time can be adjusted under [Service menu >> DHW >> Max. time]."
},
{
"reason": "Hot water sensor is misplaced, or have come loose from the cylinder.",
"action": "Put the hot water sensor in the correct position."
},
{
"reason": "Air in the heating coil.",
"action": "De-air the heating coil."
},
{
"reason": "If using hot water circulation, too big losses from the pipes.",
"action": "Make sure that circulation pipes are properly insulated."
},
{
"reason": "Incorrect reading from temperature sensor TW1.",
"action": "With sensor disconnected from the installer module, measure its resistance and compare it to table value in documentation. Replace if necessary."
},
{
"reason": "Incorrectly connected pipes to hot water system.",
"action": "Fix any pipe connection issues."
}
],
"svdescription": "Legionellaspetsen n\u00e5r inte upp till 65 grader under de tre timmar den har p\u00e5 sig. Nytt f\u00f6rs\u00f6k kommer ske f\u00f6ljande natt. ",
"svheader": "Varning Senaste term.desinfektion kunde ej genomf\u00f6ras. ",
"svheatpump": "IVT AirSplit 200 Luft/vattenv\u00e4rmepump "
},
"5285": {
"level": "Installer",
"title": "Warning Risk of frost in heat. sys.",
"description": "Varning om T0 (framledning), TC3 (v\u00e4rmeb\u00e4rare ut) eller TC0 (v\u00e4rmeb\u00e4rare retur) < 5\u00b0C i 10 minuter. N\u00e4r varningen triggas startar tillg\u00e4ngliga v\u00e4rmek\u00e4llor och alla shuntventiler \u00f6ppnar f\u00f6r att v\u00e4rma systemet. \u00c5terst\u00e4llning sker n\u00e4r ovan n\u00e4mnda givare > 25\u00b0C.",
"alternatives": [
{
"reason": "Defective sensor.",
"action": "Check the different sensors and compare Ohmvalues to table values in documentation. Replace sensor if sensor if necessary."
},
{
"reason": "Supply voltage (230 V) is missing for circulation pump PC0.",
"action": "Check that 230V is available on terminal PC0 (51, N) on the installation module. If not, also check that the fuse on the installation module is OK."
},
{
"reason": "PWM signal for circulation pump PC0 is missing.",
"action": "Disconnect PWM signal from terminal 40,41 on the installation module. The speed of the circulation pump shall increase to max. If this does not happen, replace the circulation pump."
},
{
"reason": "Defective installation module (does not provide 230V for PC0 despite the fuse beeing OK, or that the PWM-signal is not working).",
"action": "Replace installation module."
}
]
},
"5298": {
"level": "Installer",
"title": "Warning Z1 High pressure alarm JR1",
"description": "Warning if JR1 > 67\u00b0C (Pe=44 bar).",
"alternatives": [
{
"reason": "Dirt in system filter/filterball valve SC1.",
"action": "Clean the filter."
},
{
"reason": "Poor circulation in heat transfer system/heating system.",
"action": "Ensure sufficient flow."
},
{
"reason": "Air in heat transfer system/heating system.",
"action": "Vent the heating system in accordance with instructions in installation manual. Fill up with water."
},
{
"reason": "Defective sensor TC3, TC0 or T0.",
"action": "With sensors disconnected from installer module, measure the resistance of the sensors. Read out values from sensor table in documentation and compare them to actual temperatures. Replace any defective sensor."
},
{
"reason": "Diverter valve VW1 does not shift from hot water production to heating.",
"action": "Check VW1 position. A=hot water, B=heating system."
},
{
"reason": "Defective installer module, bad control signal for diverter valve.",
"action": "Check that terminal 53 on installer module provides 230V in hot water mode only."
},
{
"reason": "Defective installer module, PWM signal missing for circulation pump PC0.",
"action": "Disconnect the PWM signal from terminal 40, 41 on the installer module. The speed of the pump should increase to 100%. If not, replace the circulation pump."
},
{
"reason": "Defective installer module, supply voltage, 230 V, missing from circulation pump PC0.",
"action": "Measure voltage on terminal 51-N. If no voltage, replace installer module."
}
]
},
"5299": {
"level": "Customer",
"title": "Alarm Z1 High pressure alarm JR1",
"description": "Alarm if JR1 > 67\u00b0C (Pe=44 bar) 3 times within 2 hours.",
"alternatives": [
{
"reason": "See possible causes for warning 5298.",
"action": "Se actions for warning 5298."
}
],
"svdescription": "Fl\u00f6desproblem. Vanligaste orsaken \u00e4r luft i v\u00e4rmesystemet, igensatt partikelfilter eller att termostaterna p\u00e5 v\u00e4rmesystemet \u00e4r nerstrypta s\u00e5 att fl\u00f6det blir f\u00f6r l\u00e5gt. Se instruktionsfilmer via l\u00e4nken.",
"svheader": "H\u00f6gtryckslarm.",
"svheatpump": "IVT AirSplit 200 Luft/vattenv\u00e4rmepump "
},
"5302": {
"level": "Installer",
"title": "Warning Z1 Too high temperature on compressor driver",
"description": "Internal high temperature protection in inverter. Warning is triggered if temperature exceeds 80\u00b0C.",
"alternatives": [
{
"reason": "Poor heat transfer to cooling coil.",
"action": "Check screw mountings for cooling coil."
}
]
},
"5310": {
"level": "Installer",
"title": "Warning Z1 Too high discharge gas temperature",
"description": "Warning if hot gas temperature TR6 > maximum temperature (90 or 115\u00b0C) for more than 60 seconds.",
"alternatives": [
{
"reason": "Suction gas overheating too high. The suction gas overheating is calculated through TR5 - JR0, and controls the position of the electronic expansion valve. Therefore correct readings from these sensors are important.",
"action": "Compare read value from sensor TR5 with value of external thermometer. Connect manometer to refrigerant circuit and measure low pressure. Compare evaporating tempeature value to read value from JR0."
},
{
"reason": "If neither JR0 or TR5 are bad, a possible cause could be that the electronic expansion valve is not regulating properly.",
"action": "Use magnet to manuall change position of the EEV during operation. This to ensure that the valve has not seized."
}
]
},
"5311": {
"level": "Customer",
"title": "Alarm Z1 Too high discharge gas temperature",
"description": "Alarm after 3 warnings within 3 hours (TR6 > 90 or 115\u00b0C), or if warning is continuously active for more than 30 minutes.",
"alternatives": [
{
"reason": "See possible causes for warning 5310.",
"action": "See possible actions for warning 5310."
}
]
},
"5314": {
"level": "Installer",
"title": "Warning Z1 Disch. gas temp. sensor TR6 open circuit",
"description": "Broken circuit (> 364 kOhm) for sensor TR6.",
"alternatives": [
{
"reason": "Broken circuit for discharge gas temperature sensor TR6.",
"action": "Check resistance of sensor TR6 and signal cable and compare to table value in documentation. Measurement is done with sensor disconnected from I/O-module. Replace sensor if necessary."
},
{
"reason": "Defective I/O module.",
"action": "If signal cable is intact and the resistance of sensor TR6 is correct in relation to temperature, replace I/O module."
}
]
},
"5315": {
"level": "Installer",
"title": "Warning Z1 Disch. gas temp. sensor TR6 short circuit",
"description": "Shorted circuit (< 350 kOhm) for sensor TR6, for more than 1 minute.",
"alternatives": [
{
"reason": "Discharge gas temperature sensor TR6 or signal cable is shorted.",
"action": "Check resistance of sensor TR6 and signal cable and compare to table value in documentation. Measurement is done with sensor disconnected from I/O module. Repair cable or replace sensor if necessary."
},
{
"reason": "Defective I/O module.",
"action": "Replace I/O module."
}
]
},
"5316": {
"level": "Customer",
"title": "Alarm Z1 Discharge gas temp. sensor TR6 fault",
"description": "Alarm if any of the warnings 5314 or 5315 has been triggered 3 times within 2 hours, or if any of the warnings have been active for more than 15 minutes.",
"alternatives": [
{
"reason": "Se possible causes for warning codes 5314, 5315.",
"action": "See actions for warning codes 5314, 5315."
}
]
},
"5320": {
"level": "Installer",
"title": "Warning Temperature sensor TC3 open circuit",
"description": "Broken circuit (> 390 kOhm) for sensor TC3 (heat carrier out).",
"alternatives": [
{
"reason": "Broken sensor TC3/signal cable.",
"action": "With sensor disconnected from I/O module, measure resistance of sensor/signal cable and compare to table values in documentation."
},
{
"reason": "Connector not properly seated in I/O module.",
"action": "Check connector."
},
{
"reason": "Broken sensor TC3/signal cable.",
"action": "Replace sensor TC3."
},
{
"reason": "Defective I/O module.",
"action": "Replace I/O module."
}
]
},
"5321": {
"level": "Installer",
"title": "Warning Temperature sensor TC3 short circuit",
"description": "Shorted circuit (< 350 kOhm) for sensor TC3 (heat carrier out).",
"alternatives": [
{
"reason": "Sensor TC3/signal cable is shorted.",
"action": "With sensor disconnected from I/O module, measure the resistance of sensor and signal cable. Compare to table values in documentation. Repair signal cable or replace sensor."
},
{
"reason": "Defective I/O module.",
"action": "Replace I/O module."
}
]
},
"5322": {
"level": "Customer",
"title": "Alarm Temperature sensor TC3 fault",
"description": "Alarm if any of the warning codes 5320 and 5321 are registered 3 times within 3 hours, or if TC3 circuit is continuously broken/shorted for 15 minutes.",
"alternatives": [
{
"reason": "See possible causes for warning codes 5320, 5321.",
"action": "See actions for warning codes 5320, 5321."
}
]
},
"5330": {
"level": "Installer",
"title": "Warning Z1 Communication fault to compressor driver",
"description": "Warning if more than 20% of data sent to the inverter returns with errors (bad reply or no reply).",
"alternatives": [
{
"reason": "Supply voltage missing in outdoor unit.",
"action": "Check 230/400 V connections in both indoor and outdoor unit."
},
{
"reason": "Interference on MODbus.",
"action": "Check MODbus cable/connection terminals between I/O module and inverter."
},
{
"reason": "Incorrect CANbus connection between indoor and outdoor unit.",
"action": "Check connections and cable routing. A 100 mm gap between supply voltage cables and CANbus cables are needed to avoid interference."
}
]
},
"5331": {
"level": "Customer",
"title": "Alarm Z1 Communication fault to compressor control system",
"description": "Alarm if comunication is missing, or more than 30% of data sent to inverter returns with errors (incorrect reply or no reply at all).",
"alternatives": [
{
"reason": "Supply voltage missing in outdoor unit.",
"action": "Check 230V/400V connections in IDU and ODU."
},
{