What the manual says
Manufacturer manual"Hot water only" mode
From this model's manual
Verified against the Glow Worm Easicom 24 installation & service manual, page 25.
DIY fix possible
Check your external thermostat or boiler control panel to ensure it is set to 'Heating and Hot Water' modeIncrease the temperature setting on your room thermostat to ensure it is calling for heatCheck if your heating timer or programmer is set to 'On' for the current time period
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