Medium
uP on Ideal LOGIC HEAT

Your boiler's main control board has accidentally entered its programming setup mode rather than running normally.

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

PCB programming mode

Shared across the Logic Heat 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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

F1View →F2View →L2View →

All 24 fault codes on the LOGIC HEAT

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

F2F3F4F5F6F7F8F9FAFdFnFUL1L2L4L5L6L7L8L9LCLnoF

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