Low
3 CH yellow on Ferroli Combi 77 FF Popular

Your boiler has received a signal from your thermostat or timer telling it to turn the heating on.

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

Central heating room thermostat (72) / clock (62) calling for heat

DIY fix possible

Check if your room thermostat is turned up higher than the current room temperatureEnsure your heating programmer or clock is set to an 'ON' periodReplace the batteries in your wall thermostat if the screen is blank

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