Low
LED 3: 0 on Ferroli Optima 201

Your boiler is not receiving a signal from your thermostat or timer to turn on the heating.

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

Roomstat (72) or clock (62) not calling for heat

DIY fix possible

Check that your room thermostat is turned up higher than the current room temperature.Ensure your heating programmer or clock is set to an 'ON' period or 'Constant'.Replace the batteries in your wireless room thermostat if it has them.

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