Error Code COMM-INVERTER
Compressor controller not communicating with main board
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: LED blinks
What This Means
Inverter communication cable disconnected; Main PCB communication circuit failure; Inverter PCB failure; Compressor circuit malfunction
What actually causes this:
Loose inverter cable or PCB failure
First Thing to Check
Check cable between main board and inverter board
Parts Involved
How to Fix
- 1
1. Verify cable connection between Main and Inverter PCB
- 2
2. Check connector pins for proper seating
- 3
3. With oscilloscope, verify signal transmission
- 4
4. If signals present, replace defective PCB
Other Error Codes for RF24R7201SA
Freezer temperature sensor not working
Water overflowing from ice maker or water dispenser
Compressor will not start
Fridge getting too warm
Control panel not communicating with main board
Ice dispenser duct not heating
IO expander chip not responding
Freezer defrost heater not heating