Medium
LED 3 (CH) on Ferroli Optima 201

Your boiler is currently waiting for a signal from your thermostat or timer to tell it that the house needs heating.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

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

From this model's manual
Verified against the Ferroli Boiler Optima 601 installation & service manual.
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 room thermostat and ensure it is set to a temperature higher than the current room temperatureCheck that your timer or programmer is in the 'ON' position for heatingReplace the batteries in your wireless thermostat if you have one

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Related fault codes

LED 1View →LED 2View →

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