Error Code ㊻
The main board's input/output controller isn't responding
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: LED blinks in self-diagnostic checklist position 33
What This Means
IO Expander chip defective; Main PBA soldering defect at IO Expander; Main PBA firmware corruption
What actually causes this:
An internal chip on the main circuit board has failed
First Thing to Check
Multiple functions on the display may be non-responsive if IO Expander fails
Parts Involved
How to Fix
- 1
1. Check for cold solder joints on IO Expander chip on Main PBA
- 2
2. If soldering appears normal, IO Expander chip is likely defective
- 3
3. Replace Main PBA
Other Error Codes for RF23R6301AA
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
The freezer defrost sensor isn't reading temperature correctly