E15
Cardale
Thermal Overload / Over‑Use Protection
Opener shows E15 and refuses to move the door; often after many rapid operations.
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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
Motor overheating due to frequent cycling, Blocked ventilation around opener head, Stiff door causing high current draw, Failing motor bearings increasing load
How to Fix / Troubleshooting
Safety first: Allow the motor to cool before touching the opener housing.
- Allow cool‑down: Leave the opener powered but unused for 20–30 minutes to allow the thermal sensor to reset.
- Check ventilation: Ensure the opener head is not boxed in or covered with insulation. Provide adequate air space around the unit.
- Test door balance: Disconnect the opener and move the door manually. If it is heavy or jerky, have the door springs and hardware serviced by a professional.
- Inspect motor and drive: Listen for grinding or squealing from the motor or gearbox, indicating worn bearings. Replace the Cardale motor/gearbox assembly if noisy or excessively hot.
- Limit rapid cycling: Avoid operating the door repeatedly in quick succession; follow the duty cycle recommendations in the Cardale manual.
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Repair Difficulty
Medium
3/5
Required Part
Cardale Motor / Gearbox Assembly
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