NOTIFICATION LIST
WPM (CN) 234727, 239693
Message code Notifica-
tion from
20096
Heat pump
20097
Heat pump
20098
Heat pump
20100
Heat pump
20101
Heat pump
20102
Heat pump
20103
Heat pump
20104
Heat pump
20105
Heat pump
20135
Heat pump
20136
Heat pump
20137
Heat pump
20138
Heat pump
20139
Heat pump
20140
Heat pump
20141
Heat pump
20142
Heat pump
20143
Heat pump
20144
Heat pump
20145
Heat pump
20146
Heat pump
20147
Heat pump
20148
Heat pump
20149
Heat pump
20150
Heat pump
20151
Heat pump
20152
Heat pump
20153
Heat pump
20154
Heat pump
20155
Heat pump
20156
Heat pump
20157
Heat pump
20158
Heat pump
20159
Heat pump
20160
Heat pump
20161
Heat pump
20162
Heat pump
20163
Heat pump
20164
Heat pump
20165
Heat pump
20166
Heat pump
20167
Heat pump
20168
Heat pump
20169
Heat pump
20170
Heat pump
20171
Heat pump
20226
Heat pump
20230
Heat pump
12 | V2.3
Reason for fault code being triggered
INV major fault central fault 2
INV minor fault central fault 1
INV minor fault central fault 2
Low pressure below SOA ND limit for impermissible
length of time.
Low pressure above SOA low pressure limit for im-
permissible length of time.
SOA range exceeded
High pressure below SOA high pressure limit for im-
permissible length of time.
High pressure exceeds SOA HD limit for impermissi-
ble length of time.
SOA range exceeded
Major inverter fault: Input current limit
Major inverter fault: Output current limit
Major inverter fault: Phase loss
Major inverter fault: Power module
Major inverter fault: Mains voltage sensor
Major inverter fault: Motor power offset
Major inverter fault: PFC power offset
Major inverter fault: Measure motor inductance
Major inverter fault: Measure motor phase resist-
ance
Major inverter fault: Restart
Major inverter fault: Motor excess current shutdown
function
Major inverter fault: IGBT US short circuit
Major inverter fault: IGBT OS short circuit
Major inverter fault: Motor phases short circuit
Major inverter fault: SVM function
Major inverter fault: Fan inverter excess current
Major inverter fault: Fan SVM function
Major inverter fault: Fan DC excess voltage
Major inverter fault: Fan DC undervoltage
Major inverter fault: Fan inverter excess temperature Inverter fault
Major inverter fault: Fan rotor vector
Major inverter fault: Fan motor excess speed
Major inverter fault: Fan phase loss
Major inverter fault: Fan power module
Major inverter fault: Fan motor power offset
Major inverter fault: Fan measure motor inductance Inverter fault
Major inverter fault: Fan measure motor phase re-
sistance
Major inverter fault: Fan motor excess current shut-
down function
Major inverter fault: Fan IGBT US short circuit
Major inverter fault: Fan IGBT OS short circuit
Minor inverter fault: Fan DC undervoltage
Minor inverter fault: Fan Modbus faulty
Minor inverter fault: Fan inverter low temperature
Minor inverter fault: Fan intermediate circuit initial-
isation
Minor inverter fault: Fan central fault 1
Low relevance communication objects have been
incorrectly transferred repeatedly between the IWS
and inverter (fan section).
High relevance communication objects have been
incorrectly transferred repeatedly between the IWS
and inverter (fan section).
Major inverter fault: Fan motor phases short circuit
Minor inverter fault: Fan mains undervoltage
Possible cause of fault / remedy
Inverter fault
Inverter fault
Inverter fault
Refrigerant circuit cannot offset operating condi-
tions to SOA range for compressor.
Refrigerant circuit cannot offset operating condi-
tions to SOA range for compressor.
Refrigerant circuit cannot offset operating condi-
tions to SOA range for compressor.
Refrigerant circuit cannot offset operating condi-
tions to SOA range for compressor.
Refrigerant circuit cannot offset operating condi-
tions to SOA range for compressor.
Refrigerant circuit cannot offset operating condi-
tions to SOA range for compressor.
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault
Inverter fault. Check leads and the relevant plug-in
connectors, and replace if faulty. Check the power
supply to the inverter.
Inverter fault. Check leads and the relevant plug-in
connectors, and replace if faulty. Check the power
supply to the inverter.
Inverter fault
Inverter fault
WPMsystem