Medium
No HW but CH OK on Ideal Icos System

Your boiler is comfortably heating your home, but a specific internal component is failing to divert heat to your hot water tank.

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

No hot water production.

From this model's manual
Verified against the Ideal Icos System 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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