Medium
28 on Baxi Combi 80e

Your boiler is struggling to accurately measure the temperature of the water coming out of your taps, which may cause your hot water to fluctuate or stop working entirely.

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

Fault on Central Heating Sensor

From this model's manual
Verified against the Baxi Combi 80e installation & service manual, page 5.
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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Avoid the next call-out bill

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