LED CODE: SOLID RED
Craftsman
Firmware Lockup or Logic Board Freeze
Craftsman opener logic board diagnostic LED stays solid red and unit is unresponsive to commands.
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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
Power surge causing firmware hang, Corrupted memory on logic board, Stuck relay or processor fault
How to Fix / Troubleshooting
Safety first: Do not repeatedly cycle power rapidly; allow a few seconds between unplugging and plugging back in.
- Hard reset: Unplug the opener for at least 60 seconds. Press and hold the main LEARN or PROGRAM button for 10–15 seconds while unplugged to discharge residual power (if accessible).
- Restore power: Plug the opener back in and observe the LED. If it returns to normal blinking and the unit responds, re-test door operation.
- Clear memory (if needed): If remotes do not work, press and hold the LEARN button until the LED goes out (about 6–10 seconds) to clear all codes, then reprogram remotes and keypads.
- Check for recurring lockups: If the LED repeatedly locks solid red after normal use, the logic board is likely failing and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
Logic Board / Control Board for Craftsman Garage Door Opener
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