WarmFlow A Series, User Instructions

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Page 56
Alarm
Code
Fault Possible Cause(s) Suggested Action(s)
Action By
User Engineer
P01 Heating Return Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the heating
return temperature sensor and
re-connect/replace if necessary.

P02 Heating Flow Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the heating
flow temperature sensor and re-
connect/replace if necessary.

P03 DHW Cylinder Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the DHW
cylinder temperature sensor and
re-connect/replace if necessary.

P04 Ambient Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the
ambient temperature sensor and
re-connect/replace if necessary.

P17 Suction Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the
refrigerant suction line
temperature sensor and re-
connect/replace if necessary.

P42 Room Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the room
temperature sensor (if fitted) and
re-connect/replace if necessary.

P101 EVI Inlet Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the EVI
inlet line temperature sensor
and re-connect/replace if
necessary.

P102 EVI Outlet Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the EVI out
line temperature sensor and re-
connect/replace if necessary.

P153 Evaporator Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the evap.
temperature sensor and re-
connect/replace if necessary.

P181 Discharge Temperature Sensor Error
The temperature sensor is faulty or
disconnected.
Test the operation of the
refrigerant discharge line
temperature sensor and re-
connect/replace if necessary.

P182
Discharge Overheat Temperature Sensor
Error The temperature sensor is faulty or
disconnected.
Test the operation of the
discharge line overheat
temperature sensor and re-
connect/replace if necessary.

PP2 Suction Pressure Sensor Error The pressure sensor is faulty or disconnected.
Test the operation of the suction
line pressure sensor and re-
connect/replace if necessary.
