High
Reset neon on Glow-worm Hideaway 50BFF

Your boiler has safety-tripped and needs a manual restart to clear a temporary glitch or overheating issue.

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.

What the manual says

Manufacturer manual

If the reset neon lights, turn the boiler temperature control to '0' (off), wait 30 seconds, then repeat the lighting instructions.

From this model's manual
Verified against the Glow Worm Hideaway 80 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

What causes this fault?

This fault occurs when the boiler's internal safety sensors detect that the unit has become too hot or has failed to light correctly. The most common reasons are a temporary interruption in the gas supply, a build-up of internal heat due to a pump failure, or a worn-out component that can no longer detect the flame.

This issue often surfaces during the first cold spell of autumn when the boiler is pushed to work harder after sitting idle throughout the summer.

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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