Error Code ㊶
The main control board can't talk to the display panel
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: LED blinks in self-diagnostic checklist position 31
What This Means
Wire harness between Main and Panel PCB disconnected or loose; Main PBA defect; Panel PBA defect (Inner Panel); Signal pin damaged
What actually causes this:
A power surge or loose wire connection disrupted communication between boards
First Thing to Check
Turn off the refrigerator at the circuit breaker, wait 60 seconds, then turn back on
Parts Involved
How to Fix
- 1
1. Reconnect harness between Main PBA and Inner Panel PBA
- 2
2. Check connector pins for corrosion or damage
- 3
3. Use oscilloscope to verify signal transmission if issue persists
- 4
4. If signal is present on Main PBA but not on Panel PBA, replace Panel PBA
- 5
5. If no signal on either board, replace Main PBA
Other Error Codes for RF23R6301AA
The main board's input/output controller isn't responding
The freezer temperature sensor isn't reading correctly
The outside temperature sensor isn't reading correctly
The refrigerator temperature sensor isn't reading correctly
The refrigerator ice room heater isn't warming up
The Cool Select Pantry temperature sensor isn't working
The ice room temperature sensor isn't reading correctly
The ice room cooling fan isn't running