High
Connection on Glow-worm HXi

Your boiler's internal control board and the display panel have lost touch with each other, meaning the boiler cannot receive your commands to turn on.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

No communication between the printed circuit board (PCB) and the user interface

Engineer required

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

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Related fault codes

F.61View →F.70View →

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