What the manual says
Manufacturer manualHeatingmode:Norequirement
From this model's manual
Verified against the Glow Worm Easicom3 System installation & service manual, page 41.
DIY fix possible
Check your room thermostat or smart controller settingsTurn up the heating temperature on your thermostat to see if the boiler initiates a firing sequenceEnsure your programmer is set to 'On' for heating
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