How to reset a Baxi boiler

Has your heating suddenly stopped working? Don’t panic, your Baxi boiler might just need a quick reset. Your boiler has probably gone into lockout, which is when it shuts down because it’s detected a problem. This may include-

  • In certain circumstances, your boiler may lockout. This is identified by the Red Lockout light constantly illuminated or flashing

It is really important to know how to reset your boiler in case of a breakdown or power cut. This will ensure that the boiler starts automatically when the electricity supply returns and also helps maintain regular hot water pressure inside the radiators.

Simple steps to reset the boiler

Total Time: 2 minutes

  1. If your boiler has a reset button, press the reset button until the red light goes out.

  2. If you are troubleshooting a Baxi that uses a boiler thermostat control knob to reset, turn the temperature control knob fully anticlockwise.

  3. Hold until the red lockout light goes out, then turn the control knob back to the desired setting.

  4. If your timer is calling for heat, the burner light will come on to indicate the boiler has fired up and is heating your system.

If lockout occurs frequently a fault is indicated and you should contact your installer or service engineer. If your boiler displays any other fault codes when Baxi boiler troubleshooting, or in the event of a reset not being successful, you should make a note of the error code and contact your installer or service engineer for assistance.

Other Baxi problems may include-

  • E110, E130 – which are displayed when overheat of the primary water or flue system has occurred.
  • E119 – which is displayed when the primary water pressure is less than 0.5 bar.
Baxi hot water boiler

Baxi FAQs

  1. Why is my Baxi boiler flashing green?

    A green flash simply means your boiler is up to the temperature you requested. 3 green flashes mean the flame went out. If this is a temporary issue, the boiler should reset by itself.

  2. Why do I have to keep resetting my boiler?

    Both signals indicate that your boiler needs checking and repairing. Some of the most common boiler faults which could be triggering the need to reset it frequently include – A leak in the heating system.
    – A blocked plate heat exchanger.

  3. Why is my boiler not turning on?

    Potential causes include broken diaphragms and airlocks, failure of motorized valves, issues with the thermostat, or low water levels. A good place to start is to check if your boiler is not working because of an issue with boiler pressure or your thermostat.

All new BAXI boilers come with at the very least, a 2-year warranty with warranties up to a 10-years available, when they’re installed by a BAXI, accredited installer.

reset guides logo