Transtherm Excessive Condensation / Door Seal or Ambient Humidity Issue

Condensation forming on the glass door or around the gasket

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Possible Causes

High ambient humidity, Door gasket not sealing, Frequent door openings, Failed door frame heater (if equipped)

How to Fix / Troubleshooting

Safety: No internal electrical work is typically needed; unplug only if accessing internal components.

Steps:

  • Reduce humidity: If possible, lower the room humidity or improve ventilation around the cabinet.
  • Check gasket seal: Inspect and adjust or replace the door gasket if there are visible gaps.
  • Limit door openings: Minimize how often and how long the door is opened.
  • Door heater (if fitted): Some Transtherm models have a low-wattage heater around the door frame. If condensation is severe only around the frame, have a technician test and replace the door frame heater if defective.

Note: Light condensation can be normal in very humid environments.

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Repair Difficulty

Easy 2/5

Required Part

Door Gasket
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