Marantec Surge‑Induced Control Board Damage

Opener beeps repeatedly and will not operate after a lightning storm or power surge.

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.

Possible Causes

Lightning strike near home, Power surge through AC line, Damaged low‑voltage circuits on Marantec board, Corrupted memory

Safety first: Unplug the opener before inspection.

Power reset: Leave the opener unplugged for several minutes, then reconnect and test.
Inspect board: Look for burn marks or damaged components. If present, the board must be replaced.
Replace control board: Install the correct Marantec replacement board, transferring wires one by one.
Add surge protection: Use a surge‑protected outlet or dedicated surge protector for the opener to reduce future damage.

Hard 4/5

Marantec Logic Board

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