Medium
E50 on Baxi Duo-tec Combi HE A

Your boiler is struggling to accurately detect the temperature of the water being heated for your taps and shower, so it has stopped heating it to prevent overheating.

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

Hot Water NTC Fault

From this model's manual
Verified against the Baxi Duo Tec Combi He A installation & service manual, page 62.
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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