Low
d.62 on Glow-worm Sustain 12s

Your boiler is currently operating in its designated 'night' energy-saving mode and is functioning exactly as it has been programmed to do.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Night set-back

From this model's manual
Verified against the Glow Worm Sustain 12s installation & service manual, page 31.
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 external programmer or smart thermostat settingsAdjust the night set-back temperature or time schedule if you want the heating to remain activeConsult your user manual for instructions on how to disable the night-time economy mode

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