Medium
F11 on Ideal Logic Air

Your heat pump is struggling to read the outdoor temperature, which prevents it from calculating how to heat your home efficiently.

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

outdoor PFC thermistor fault

From this model's manual
Verified against the Ideal Logic Air 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

F12View →F13View →

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