NOTIFICATION LIST
WPM (CN) 234727, 239693
Message code Notifica-
tion from
20231
Heat pump
20232
Heat pump
20233
Heat pump
20234
Heat pump
20235
Heat pump
20236
Heat pump
20237
Heat pump
20241
WPM
20242
FES
20243
FET
20244
WPM
20245
FES
20246
FET
20247
Heat pump
20248
Heat pump
20249
WPM
30002
Heat pump
30007
WPM
30008
Heat pump
30009
Heat pump
30010
Heat pump
30011
Heat pump
30016
Heat pump
30017
Heat pump
30018
Heat pump
30020
Heat pump
30021
Heat pump
30025
Heat pump
30026
Heat pump
30031
Heat pump
30032
Heat pump
30043
Heat pump
30044
Heat pump
30052
Heat pump
WPMsystem
Reason for fault code being triggered
Minor inverter fault: Fan motor excess temperature Inverter fault
Major inverter fault: PFC excess current shutdown
function
Minor inverter fault: Inverter temperature control
Minor inverter fault: Input current control
Major inverter fault: High pressure sensor range
undershot
Major inverter fault: Compressor type configuration Inverter fault
Major inverter fault: High pressure sensor configu-
ration
Update completed successfully
Update completed successfully
Update completed successfully
Update failed
Update failed
Update failed
Compression chamber, limit value exceeded
Safety pressure cell has responded
New HP-ID type detected
Compressor or starting contactor stuck
The minimum brine pressure limiter has been trig-
gered.
The "WP - Typ" DIP switch of the IWS is set incorrect-
ly.
Sensor value of the "mean pressure sensor" outside
the permissible range
Sensor value of the "suction gas temperature sensor
for high pressure compressor" outside the permissi-
ble range
Sensor value of the "suction gas temperature sensor
for low pressure compressor" outside the permissi-
ble range
Sensor value of the "hot gas temperature sensor"
outside the permissible range
Sensor value of the "evaporator temperature sen-
sor" outside the permissible range
Sensor value of the "cooling/recuperator sensor"
outside the permissible range
Sensor value of the "frost protection temperature
sensor" outside the permissible range
Sensor value of the "injection temperature sensor"
outside the permissible range
Sensor value of the "high pressure sensor" outside
the permissible range
Sensor value of the "low pressure sensor" outside
the permissible range
Sensor value of the "flow temperature sensor" out-
side the permissible range
Sensor value of the "return temperature sensor"
outside the permissible range
Sensor value of the "exhaust air temperature sensor"
outside the permissible range
Sensor value of the "differential pressure sensor"
outside the permissible range
Brine pressure switch has responded
Possible cause of fault / remedy
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Power supply briefly interrupted.
MicroSD card removed in the update process.
Power supply briefly interrupted.
MicroSD card removed in the update process.
Bus connection between WPM and FES2 faulty.
Power supply briefly interrupted.
MicroSD card removed in the update process.
Bus connection between WPM and FET faulty.
FET removed from the bus during the update pro-
cess.
Machine housing vacuum could not be held. Check
the appliance for leaks
Check contactors K1 and K2.
Check brine circuit.
Isolate the heat pump from the power supply and
set the DIP switch correctly.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check sensor, leads and the relevant plug-in con-
nectors, and replace if faulty.
Check brine circuit
V2.3 | 13