Troubleshooting MCAC-UTSM-2009-03
30 Outdoor Units
2. Defrosting lamp flash at 5Hz
3. Running lamp, Timer lamp, Defrosting lamp all flash at 5Hz
Judge: Evaporator temp. sensor checking channel is abnormal
Validate: Check whether the resistance of the evaporator
temp. sensor is correct according to Annex 1
Yes
Replace the evaporator temp. sensor
Replace the indoor main board
No
Judge: Condenser temp. sensor checking channel is abnormal
Validate: Check whether the resistance of the condenser
temp. sensor is correct according to Annex 1
Yes
Replace the condenser temp. sensor
Replace the PCB
No
Defrosting lamp flash at 5Hz
Running lamp, Timer lamp, Defrosting lamp all flash at 5Hz
To Next Page
Loading...
