1065
1066
1072
1077
1078
1079
1080
1081
1083
1103
1104
1105
1118
1119
1123
1128
Error
code
Fault
Fault description
Possible causes
Compressor anomaly
External temperature
sensor error
High discharge
temperature
High external coil
temperature
High pressure on external
coil
Pressure sensor anomaly
Coolant pressure probe
anomaly
Discharge probe anomaly
Evaporator probe anomaly
High inverter temperature
Inverter temperature
increased abnormally
Inverter high current
Inverter temperature
sensor fault
Coolant loss
Power supply voltage
anomaly
Communication error with
outdoor unit boards
Compressor power supply BUS not coherent
Outdoor air temperature sensor anomaly
Compressor discharge temperature too high
High temperature on external coil
Pressure too high on external coil
Detected cooling gas pressure out of range
Coolant pressure probe anomaly
Compressor temperature sensor anomaly
Outdoor coil temperature anomaly
Inverter board temperature too high
Temperature on cooling fins too high
High current detected on inverter
Inverter temperature sensor anomaly
Lack of coolant in outdoor unit
Power supply voltage out of range
Inverter communication error - hydronic board
Check compressor electrical connections
Check heat pump PCB connections
Check for water ingress on PCB electrics
Check connections and position of outside
sensor
Check sensor is not influenced by surrounding
heat sources
Compressor fault
Compressor overheating
Excessive heat pump operating time
Blocked/damaged evaporator fins
Restricted air flow across evaporator
Check clearances and obstructions around heat
pump
Check and clean evaporator fins
High ambient temperature operation
Blocked/damaged evaporator fins
Restricted air flow across evaporatorCheck
clearances and obstructions around heat pump
Check and clean evaporator fins
Expansion valve fault
Check sensor location or damage
Check sensor connections
Check sensor location or damage
Check sensor connections
Blocked/damaged evaporator fins
Restricted air flow across evaporator
Check clearances and obstructions around heat
pump
Check and clean evaporator fins
Check inverter board connections
Check for dust or dirt on board
Check for dust or dirt on board
Check inverter board connections
Check for dust or dirt on board
Check inverter sensor and connections
Check for compressor circuit leaks
Check cable condition and connections
Check for water ingress or short circuit
connections
Check cable condition and connections
If the error or anomaly persists, contact an approved company (e.g. HVAC engineer or manufacturer).
Instructions on how to correctly dispose of the product.
At the end of its life, this appliance must not be disposed of as mixed municipal waste.
It is mandatory to separate this type of waste so that the materials making up the appliance can be recycled and reused.
Contact authorised operators for disposal of this type of appliance. Incorrect management of waste and its disposal has
potential negative effects on the environment and on human health. The symbol on the appliance represents the prohibition of
disposing of the product as mixed municipal waste.
