Thermador
Door Assembly Moisture Ingress
Microwave door glass is fogged, streaked, or has moisture trapped between panes.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Compromised door seal between glass panes,High humidity and steam exposure,Improper cleaning with excessive water,Door not sealing evenly
How to Fix / Troubleshooting
Safety first: Do not disassemble the door glass layers yourself; this can affect radiation shielding.
- Step 1 – Wipe exterior: Clean the inner and outer glass surfaces with a mild cleaner and soft cloth.
- Step 2 – Ventilate: Leave the door open after cooking to allow trapped moisture to evaporate over time.
- Step 3 – Inspect door seal: Check the perimeter gasket and door frame for damage or warping.
- Step 4 – Professional door replacement: If moisture persists between panes or the seal is compromised, have the complete door assembly replaced by a Thermador-authorized technician.
Note: The door is a critical safety component; do not attempt to separate glass layers.
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Repair Difficulty
Hard
4/5
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