Low
S.30 on Glow-worm Energy7 Regular

Your boiler is perfectly healthy, but it is currently waiting for a signal from your wall-mounted thermostat to start heating your home.

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

Roomthermostatisblockingheatingmode.

From this model's manual
Verified against the Glow Worm Energy7 Regular installation & service manual, page 40.
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 to ensure it is set to a temperature higher than the current room temperatureReplace the batteries in your wireless thermostat controllerEnsure your programmer or timer is currently in an 'ON' period for heating

Find a Gas Safe engineer
Search the official register →

Avoid the next call-out bill

Monthly cover means no unexpected bills when your boiler breaks down.

Approved partner
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Get a quote →

Affiliate links. We may earn a commission at no extra cost to you.

Related fault codes

Related guides you might find useful