BoilerFaultCodesTechnical description
Burner fault: Temperature limiter has responded
What causes this fault?
This fault occurs when the water inside the boiler gets too hot, causing a safety sensor to trip and shut the system down to prevent damage. The most common reasons are a pump failure that stops water from moving around the system or a build-up of debris and limescale that blocks the internal pipework.
This fault is more common in autumn and winter when the heating is first turned on after a long summer break, as internal pumps can sometimes seize up from lack of use.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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