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E110

Baxi fault code

Baxi E110: overheat: the safety thermostat has tripped

Engineer only

The boiler got too hot. Baxi lists a jammed pump or air in the system as likely causes.

What you can safely do

There is nothing you can safely do yourself with this one. Leave the boiler off and book an engineer.

Find a Gas Safe engineer near you Opens the official Gas Safe Register search.

Applies to: Platinum, Duo-tec, EcoBlue, Megaflo, Assure, Main Eco and original 600/800. Codes can differ between models, so check your manual.

From Baxi's own fault tables. Your model name is usually on the front of the boiler or in the user manual.

Model	Meaning	Causes listed for engineers
Platinum, Duo-tec, EcoBlue, Megaflo, Assure, Main Eco and original 600/800	Boiler maximum temperature exceeded for gradient, or safety thermostat sensor tripped	Probably the pump is jammed or there is air in the circuit

Can I reset E110?

The underlying cause, often the pump, needs an engineer. Repeatedly resetting an overheat fault isn't safe.