Low
S.0 on Glow-worm Energy

Your boiler is perfectly healthy and is simply waiting for a signal from your thermostat to start heating your home or water.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Heating mode: No requirement

From this model's manual
Verified against the Glow Worm Energy installation & service manual, page 32.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check your room thermostat is set to a higher temperature than the current room temperatureEnsure your heating programmer or timer is set to 'On'Wait for the demand signal to trigger the boiler to start

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Avoid the next call-out bill

A cover plan would handle faults like S.0: no call-out fees, no surprise bills.

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