Linear
Moisture Ingress / Corrosion
Water or moisture visible inside the opener housing; intermittent operation during damp weather.
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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
Roof or ceiling leak above opener, Condensation in unheated garage, Missing or damaged opener cover, Corroded connectors on control board
How to Fix / Troubleshooting
Safety first: Disconnect power before opening the housing. Do not operate the opener when wet inside.
- 1. Dry the unit: Remove the cover and gently dry internal components with a soft cloth. Allow the opener to air dry completely for several hours.
- 2. Inspect for corrosion: Check connectors and the control board for green or white corrosion. Clean light corrosion with contact cleaner; replace heavily corroded parts.
- 3. Fix source of moisture: Repair any roof or plumbing leaks above the opener. Ensure the opener cover and light lens are properly installed.
- 4. Consider environmental protection: In very damp garages, consider a dehumidifier or relocating the opener if possible.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board / Wiring Connectors
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