Fhiaba
Door Mullion Heater or Condenser Loop Issue
Warm air or condensation around the door edges; doors feel warm to the touch.
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Possible Causes
Normal operation of anti-condensation heater loop, Excessive ambient humidity, Condenser overheating due to poor ventilation, Mullion heater circuit fault (if electric heater used)
How to Fix / Troubleshooting
Safety first: Unplug the refrigerator before accessing rear panels or electrical connections.
Step 1 – Determine if normal:
- Slight warmth around door edges is normal to prevent condensation, especially in humid environments.
Step 2 – Improve ventilation:
- Ensure proper clearances and clean condenser coils to reduce excessive heat.
Step 3 – Check for abnormal heat:
- If the mullion area is very hot to the touch, a condenser or heater control issue may exist.
- Have a technician verify condenser loop operation and any electric mullion heater circuits.
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Repair Difficulty
Easy
2/5
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