Guardian Stuck Light Relay or Control Circuit

Guardian opener light stays on constantly and will not turn off.

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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

Stuck relay on logic board, Wall console light button stuck, Miswired accessory controlling light, Shorted light control transistor

How to Fix / Troubleshooting

Safety first: Disconnect power before opening the opener housing or wall console.

  • Check wall console: If it has a light button, ensure it is not stuck in the pressed position. Replace the console if necessary.
  • Disconnect wall console: Temporarily remove wall console wires at the opener. Restore power and see if the light turns off after the normal timeout.
  • Inspect logic board: Look for a stuck or burned relay on the board. Tapping lightly may temporarily release it, confirming the fault.
  • Replace logic board: If the light remains on regardless of controls, replace the Guardian logic board.
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Repair Difficulty

Medium 3/5

Required Part

Guardian Logic Board
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