Medium
F11 on Ferroli Atlas D

Your boiler is having trouble detecting the temperature of the water used for your taps and shower, so it has temporarily stopped providing hot water.

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

DHW sensor fault

From this model's manual
Verified against the Ferroli/Ferroli Atlas D 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

F10View →

All 15 fault codes on the Atlas D

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

A01A03F07F10F13F14F34F35F37F39F40F42F47FH

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