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Outdoor unit errors
Error
1
905
HP compressor mismatch error
906
HP fan mismatch error
907
HP 4-way valve mismatch error
908
Expansion valve mismatch error
909
HP zero fan speed
910
Inverter-TDM communication error
912
4-way valve error
913
LWT sensor error
914
917
918
Pump down error
922
931
947
4-way valve error
956
HP compressor model mismatch
957
HP fan model mismatch
960
HP EWT sensor error
962
968
ATGBUS TDM-EM communication error
989
Machine empty error
997
Compressor overcurrent
998
Compressor overcurrent
9E5
High-pressure pressure switch intervention
9E8
Low-pressure pressure switch error with com-
9E9
Klixon error with compressor OFF
9E18
ST1 safety thermostat error
9E21
Low refrigerant charge error
9E22
Machine empty error
9E24
EXV seized up error
9E25
EXV seized up error
9E28
High pressure protection
9E29
High pressure protection
9E31
Compressor thermostat protection
9E32
Compressor thermostat protection
9E34
Low-pressure protection
9E35
Low-pressure protection
9E36
Compressor phases current imbalance
9E37
Compressor phases current imbalance
9E38
Excessively steep compressor current variation
9E39
Excessively steep compressor current variation
82 / EN
Description
TD sensor error
TR sensor error
Freeze error
Freeze error
Inverter error
Defrost energy
pressor OFF
NO RESET
Volatile
User reset
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Service
RESET
HP Power
Service reset
OFF
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