How much does it cost to fix Glow-worm error code All Ultracom?

Typical repair cost for the Glow-worm All Ultracom fault is £150-£450 including labour.

All Ultracom High

Glow-worm All Ultracom Fault Code

Q: What does the Glow-worm All Ultracom fault code mean?

Your boiler has lost power or is experiencing a total electronics failure, meaning it cannot operate or tell you what is wrong.

Also written as ALLULTRACOM — same fault.

The Glow-worm All Ultracom fault code means: your boiler has lost power or is experiencing a total electronics failure, meaning it cannot operate or tell you what is wrong.. It appears on 3 Glow-worm models in our database.

Technical description: No display or Er

Typical repair cost £150-£450 (including labour)

DIY fix possible

Check if your main consumer unit (fuse box) has tripped and reset it.Verify the boiler's fused spur switch is turned on and the fuse has not blown.Check if other appliances in your home have power to rule out a general power cut.

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Glow-worm models that show the All Ultracom fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Glow-worm All Ultracom fault code information on this page is sourced and cross-checked against the official Glow-worm service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026