Mars Comfort-Aire Century VCD-SA Series Service Manual page 115

Service Manual - VCDxxSA
Error code of engineer mode
Display Error Information
Indoor unit EEPROM parameter error
EH 00
Indoor / outdoor unit communication error
EL 01
Communication malfunction between adapter board and outdoor main board
EL 16
The indoor fan speed is operating outside of the normal range
EH 03
Outdoor unit EEPROM parameter error
EC 51
EC 52 Condenser coil temperature sensor T3 is in open circuit or has short circuited
EC 53 Outdoor room temperature sensor T4 is in open circuit or has short circuited
Compressor discharge temperature sensor TP is in open circuit or has short circuited
EC 54
IGBT temperature sensor TH is in open circuit or has short circuited
EC 55
Evaporator coil outlet temperature sensor T2B is in open circuit or has short circuited(for free-match
EC 56
indoor units)
Outdoor unit malfunction
ec 0
Indoor room temperature sensor T1 is in open circuit or has short circuited
Eh 60
Eh 61 Evaporator coil temperature sensor T2 is in open circuit or has short circuited
EH 62 Evaporator coil temperature sensor T2B is in open circuit or has short circuited
Evaporator coil temperature sensor T2A is in open circuit or has short circuited
eh 65
The outdoor fan speed is operating outside of the normal range(
EC 07
Communication error between indoor two chips
EH 0
Refrigerant leak detected
EL 0C
Water-level alarm malfunction
EH 0E
Mismatch between the new and old platforms
pl 09
IPM malfunction or IGBT over-strong current protection
PC 00
Over voltage or over low voltage protection
PC 01
PC 02 Top temperature protection of compressor or High temperature protection of IPM module
PC 04 Inverter compressor drive error
Outdoor current protection
PC 08
Pressure protection
PC 03
Outdoor low ambient temperature protection
pc 0l
Evaporator coil temperature over high protection
PH 90
Evaporator coil temperature over low Protection
PH 91
Condenser high temperature protection
PC 0A
 Troubleshooting 12 