Medium
A24 on Ferroli DOMINAplus F24D

Your boiler has detects that it has been topped up with water too many times recently, which usually points to a hidden leak in your heating system.

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

4 fillings within 24 hours

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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Related fault codes

A23View →F37View →

All 27 fault codes on the DOMINAplus F24D

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

4 (Flashing Light)4 (Permanent Light)5 (Flashing Light)5 (Permanent Light)454750d4E03E05E06F11Heating demand light ONInsufficient pressureLED 4LED 4 (Flashing light)LED 4 (Permanent light)LED 5LED 5 (Flashing light)LED 5 (Permanent light)LED1LED2Low water pressure light ONRed LED Out (Lockout)Red light (Egg timer symbol)Tap symbol light ON

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