High
Safety Thermostat on Baxi Bahama 80e / 105e

Your boiler has shut down because it has detected it is getting too hot, usually due to a lack of water flow or a circulation blockage.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

The safety thermostat neon will light in the event of the system or the boiler overheating.

From this model's manual
Verified against the Baxi Bahama 80e 105e 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 is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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