Error Code 46
Internal I/O chip on the main board has failed
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: Error 46
What This Means
I/O expander IC on Main PCB failed; Main PCB internal fault
What actually causes this:
An internal communication chip on the main control board has failed.
First Thing to Check
Power-cycle the refrigerator by unplugging for 5 minutes to see if the error clears.
Parts Involved
How to Fix
- 1
Replace Main PCB
Other Error Codes for RF23M8570SR
Humidity sensor in the fridge compartment has failed
Ice bucket compartment heater has an open or short circuit
Mid drawer damper heater has an open or short circuit
Auto-fill water tank has detected an overflow
Refrigerator defrost sensor has failed or disconnected
Freezer defrost sensor has failed or lost connection
Freezer temperature sensor has failed or lost connection
Ambient room temperature sensor has failed