Low
h on Halstead Club HE 18

Your boiler has reached its target temperature and the burner has turned off while the pump continues to circulate water to cool the system down.

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

Burner goes out (over-run period)

From this model's manual
Verified against the Halstead Club He 18 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.

DIY fix possible

Check that your room thermostat is set to the desired temperatureEnsure at least one or two radiators have their valves fully open to allow heat to dissipateMonitor the display to see if the 'h' changes to a temperature reading once the cooling period ends

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