Novoferm Stuck light relay or logic fault

Novoferm garage door opener light stays on permanently and does not turn off after the usual timeout.

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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 control board, Incorrect light mode setting, Shorted light control transistor, External control wired to light circuit

How to Fix / Troubleshooting

Safety first: Disconnect power before accessing the light or control board.

Steps to try:

  • Check settings: Some Novoferm models allow the light to be set to permanent on via a button or menu. Reset to automatic mode.
  • Power cycle: Disconnect power for a minute and reconnect to see if the light behavior resets.
  • Test without bulb: Remove the bulb. If the light output remains energized (measurable voltage) after timeout, the relay or transistor is stuck.

If the light circuit is stuck on electrically, the control board will need repair or replacement.

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Repair Difficulty

Medium 3/5

Required Part

Novoferm control board
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