High
dU on Ideal INDEPENDENT COMBI2

Your boiler is confused about whether to send hot water to your taps or your radiators because an internal valve is stuck in the middle.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Diverter Valve in midposition

Shared across the INDEPENDENT COMBI2 range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s 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 is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 29 fault codes on the INDEPENDENT COMBI2

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

F 0CF 0tF 02F 03F 04F 04 or L 04F 05F 05 or L 05F 06F 07F 09F 10F 12F 13F 14F 15F 16F 17F0UF01L 0CL 0dL 02L 04L 05L 06L01L2

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