E6
Novoferm Control board internal fault

Novoferm garage door opener shows E6 and refuses to operate from any control.

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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

Failed microcontroller on main PCB, Surge damage from lightning or mains spikes, Burnt track or component on control board, Incorrect supply voltage connection

How to Fix / Troubleshooting

Safety first: Isolate the opener from mains power before removing the cover. Capacitors on the PCB may retain charge; avoid touching bare solder joints.

Steps to try:

  • Power cycle: Disconnect power for at least 1 minute, then reconnect. Observe if E6 clears temporarily.
  • Inspect PCB visually: Look for burnt components, bulging capacitors, or blackened areas on the Novoferm control board. Any visible damage indicates the board must be replaced.
  • Check supply voltage: Verify that the opener is connected to the correct mains voltage specified on the rating label. Incorrect voltage can cause permanent board damage.
  • Disconnect accessories: Remove external accessories (key switches, external receivers, photocells) from the low‑voltage terminals and test again. A shorted accessory can sometimes trigger board errors.

If E6 persists with all accessories disconnected and no obvious wiring faults, the control board is defective. Replacement of the Novoferm control PCB is recommended; component‑level repair is not generally supported.

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Repair Difficulty

Hard 4/5

Required Part

Novoferm control board
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