Error Code ㉕
The refrigerator defrost heater isn't warming up
Critical
Stop using immediately - risk of damage or safety issue
Also displayed as: LED blinks in self-diagnostic checklist position 25
What This Means
Defrost heater element shorted (0Ω reading); Defrost heater wire open circuit (∞Ω reading); Bimetal protector defective; Harness damaged or disconnected; Main PBA relay defective
What actually causes this:
The heater element burned out or the wire connection is broken
First Thing to Check
Check if frost accumulates on refrigerator evaporator — indicates heater not working
Parts Involved
How to Fix
- 1
1. Unplug refrigerator and wait 5 minutes
- 2
2. Disconnect MAIN PCB CN20 wire from PCB
- 3
3. Measure resistance between CN20 pins 5 and 7 with multimeter (power must be OFF)
- 4
4. Should read 120Ω ± 7% (115V model) or 480Ω ± 7% (230V model)
- 5
5. If 0Ω: heater short-circuited; if ∞Ω: heater wire open
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