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
This Error Applies To
Samsung RF23R6 Series Refrigerators (2010) (2010–present)
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