What does the Potterton Red LED on only fault code mean?

Your boiler has lost the signal that tells it to turn on, or a internal electrical component is preventing it from starting.

How much does it cost to fix Potterton error code Red LED on only?

Typical repair cost for the Potterton Red LED on only fault is £120-250 including labour.

Check external controls/SW LIVE supply or internal fuse/overcurrent fault (Fan or Pump)

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Each noise points to a different fault.

Work through these before the call-out.

Safety-critical — turn off, read this.