Low
Light off on Worcester Bosch Heatslave

Your boiler is currently idle because it hasn't received a signal from your thermostat or timer to start heating your water.

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.

Technical description

No boiler demand

DIY fix possible

Check that your room thermostat is turned up higher than the current room temperatureEnsure your programmer or heating timer is set to 'ON' or 'AUTO'Check if the batteries in your wireless thermostat need replacing

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