What does the Glow-worm F.85 fault code mean?

Your boiler's internal computer has become too hot and has shut itself down to prevent damage to the circuitry.

How much does it cost to fix Glow-worm error code F.85?

Typical repair cost for the Glow-worm F.85 fault is £180-450 including labour.

Electronics temperature too high

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

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.

Break-even maths on monthly cover.