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Baxi Boiler Fault Codes

Fault code Fault

E20

Central heating NTC fault

E28

Flue NTC fault, air pressure switch fault, blocked flue, blocked condensate or wiring fault

E50

Hot water NTC fault

E110

Your boiler made have overheated - try bleeding your radiators

E119

Water pressure too low

E125

Circulation fault (primary circuit) - try bleeding your radiators

E130

Flue NTC operated

E133

Interruption of gas supply or flame failure - gas supply fault

E160

Fan or fan wiring Fault

E193

Pre-circulation fault

What is NTC?


An NTC or ‘Negative Temperature Coefficient’ is a type of thermistor (or thermal resistor).

Basically, it’s an electrical component that helps to regulate the temperature of your boiler. So, when you set your heating to a certain temperature it will make sure your boiler stays at that temperature.

Baxi affordable repair combi heat only combi boiler

Safety Warning

When your Baxi boiler error codes or fault lights flash, don’t do any repair work that involves working with gas as you are required to be Gas Safe Registered by law.

Here at Boiler Plan all our engineers are Gas Safe Registered and will do an amazing job with any Baxi boiler repair work you may need.

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