What is Error 133? Error 133 is a flame detection fault common in several boiler brands, typically indicating an issue with gas supply or ignition. It’s the boiler’s way of saying, “I can’t start up safely.
Tag: error code
What is Error 133? Error 133 is a flame detection fault common in several boiler brands, typically indicating an issue with gas supply or ignition. It’s the boiler’s way of saying, “I can’t start up safely.