Mighty Mule
Moisture Intrusion Affecting Electronics
Water or condensation visible inside 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
Improperly sealed opener cover, Roof or ceiling leak above opener, High humidity causing condensation, Corrosion on control board
How to Fix / Troubleshooting
Safety first: Disconnect power before opening the housing. Do not operate the opener when wet inside.
- Dry the unit: Remove the cover and allow the opener to dry completely. Use a fan or gentle airflow; do not use direct heat.
- Inspect for leaks: Check above the opener for roof or plumbing leaks and repair the source of moisture.
- Check for corrosion: Look for rust or white/green corrosion on the control board and connectors. Light surface corrosion can sometimes be cleaned; heavy corrosion usually requires board replacement.
- Seal housing: Ensure the opener cover is properly installed and any gaskets are intact.
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Repair Difficulty
Medium
3/5
Required Part
Mighty Mule Control Board
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