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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