Medium
Heating demand light ON on Ferroli Domina 102

Your boiler is struggling to register that you have turned the heating on, causing it to stay idle or fail to start.

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

Fault is most likely the C.H. sensor

From this model's manual
Verified against the Ferroli/Ferroli Domina 80e 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.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 15 fault codes on the Domina 102

Seeing a different code? Every code this model can display, in one place.

4 (Flashing)4 (Permanent Light)5 (Flashing)5 (Permanent Light)LED 4 (Flashing light)LED 4 (Permanent light)LED 5 (Flashing light)LED 5 (Permanent light)LED4 (Permanent)LED5 (Permanent)LED5 bar (Flashing)Red LED Out (Lockout)Red light (Egg timer symbol)Tap symbol light ON

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