Unknown
FU on Ideal INDEPENDENT SYSTEM

Ideal INDEPENDENT SYSTEM fault code FU

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

What the manual says

Manufacturer manual

DIFF GREATER THAN 50ºC. CHECK ISOLATION VALVES ARE OPEN, CHECK PUMP, CHECK RAD VALVES OPEN, CHECK SYSTEM BLOCKAGES.

From this model's manual
Verified against the Ideal/Ideal G101 Ideal Independent System S18 4175070 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 20 fault codes on the INDEPENDENT SYSTEM

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

F1F2F3F4F5F6F7F8F9FnL1L2L4L5L6L8L9LCLn

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