Indoor Unit Error Display; Outdoor Unit Display - ComfortStar CVH-18-2SH Service Manual

7.2 Indoor Unit Error Display

Timer
Operation lamp
lamp
★ 1 time
X
★ 2 times
X
★ 4 times
X
★ 6 times
X
★ 6 times
X
★ 1 time ★
★ 5 times
X
★ 5 times
X
★ 5 times
X
★ 5 times
X
★ 12 times
X
★ 5 times
X
★ 9 times
X
★ 8 times
X
★ 7 times ★
★ 2 times ★
★ 3 times ★
★4 times ★
★ 5 times ★
★ 1 time

★ 7 times ★

7.3 Outdoor Unit Display

7.3.1 Outdoor Unit Point Check Function
A check switch is included on the outdoor PCB.
Push SW1 to check the unit's status while running. The digital display shows the following codes each
time the SW1 is pushed.
Display LED STATUS
EH
00/EH Indoor unit EEPROM parameter error
0A
EL 01
Communication malfunction between indoor and outdoor units
EH 03 Indoor fan speed malfunction
EH 60 Indoor room temperature sensor (T1 ) malfunction
EH 61 Evaporator coil temperature sensor (T2) malfunction
PC 08 Current overload protection
EC 53 Outdoor ambient temperature sensor (T4 ) malfunction
EC 52 Condenser coil temperature sensor (T3) malfunction
EC 54 Compressor discharge temperature sensor (T5) malfunction
EC 51 Outdoor unit EEPROM parameter error
EC 07 Outdoor fan speed malfunction
Indoor coil outlet pipe sensor(Located on outdoor unit low pressure
EC 56
valve)
Indoor PCB/Display board communication error
EH 0b
Refrigerant leakage detection
EL 0C
PC 00 Inverter module (IPM) malfunction
PC 01 Over-voltage or under-voltage protection
High temperature protection of compressor top(OLP)/ High
PC 02
temperature protection of IPM board
PC 0L Low ambient temperature protection
PC 04 Compressor drive malfunction
—— Indoor units mode conflict
PC 03 Low pressure protection
★ flash ,  light, X extinguished
41
ODU
Error
——
E2
——
——
——
——
E4
E4
E4
E0
E8
——
——
——
P6
E5
——
LP
——
——
P2