Nibe Intermittent Control or Sensor Issues

Boiler frequently locks out and needs manual reset, with varying error messages

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

Loose electrical connections, Moisture on PCB, Marginal sensors (NTCs drifting), Unstable mains supply

Safety first: Repeated lockouts indicate an underlying fault. Do not repeatedly reset without investigation.

Record error codes: Note the exact codes and conditions when they occur to help diagnosis.
Check for damp: Inspect around the boiler for signs of condensation or leaks that could affect electronics.
Ensure ventilation: The boiler cupboard should be dry and adequately ventilated.
Professional inspection: A Nibe technician can check all terminals, test sensors, and replace the Nibe main control PCB or affected sensors.

Hard 4/5

Nibe Main Control PCB

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