Error 133 - Gas Supply Interruption or Flame Failure

What does 133 mean?

This error code signifies an interruption in the gas supply to the boiler or a failure of the flame to ignite. The boiler's display will show the spanner symbol and the numeric error code.

• No gas supply to the boiler
• Main gas valve closed or faulty
• Faulty ignition or flame detection system

Click steps to track your progress.

1. 1

   Press the 'R' (reset) button firmly for several seconds to attempt to clear the fault.

2. 2

   Ensure the main gas supply to the property and boiler is turned ON.

3. 3

   Verify other gas appliances in your home are working. If not, contact your gas supplier.

4. 4

   If the fault code reappears, contact your installer or the Baxi service division ('heateam') for assistance.