Error Code List - Omega OTEC IEWB Series Service Manual

2.3 Error code list

2.2.1 Indoor unit error code
Communication failure between indoor and outdoor unit
When it shows E5, press to show more error code.
Communication failure between indoor and outdoor unit
Definitions of malfunction
T1 room temperature sensor fault
T2 temperature sensor fault
T2B temperature sensor fault
Outdoor unit fault
Zero-crossing detection fault
EEPROM error
PG fan motor stall protection
Communication fault of wired controller
Room card port disconnected port
Definitions of malfunction
T4 ambient temperature sensor fault
T5 discharge temperature sensor fault
T3 condenser pipe temperature sensor fault
Indoor unit EEPROM error
AC over-voltage / under-voltage protection
Outdoor unit EEPROM error
Indoor unit fan motor fault
IPM temperature sensor fault
Outdoor unit fan motor fault
Compressor fault
PFC fault
Error code
E1
E2
E3
E4
E5
E6
E7
E8
E9
HC
Error code
E2
E4
E5
E6
E7
E9
E10
E11
E12
E2x
H2x
H3x
6