Boiler keeps switching itself off
Check the steps below first — if you\'re not confident, get it fixed safely today.
Find a Gas Safe engineer near you →⚠️ Do not repeatedly reset a boiler that keeps locking out — especially if it shows a gas or flame fault.
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Most likely cause & what to check
Check the boiler pressure gauge — it needs to be between 1 and 1.5 bar. If it's below 1, use the filling loop under the boiler to top it up, then press reset.
Check the display for a fault code — note it down and use our Boiler Fault Code tool to find out what it means.
If the boiler starts then cuts out again, do not keep resetting it. Call a Gas Safe engineer and tell them: "My boiler fires up but switches itself off after a few minutes" and give them the fault code.
🛠 Tools & materials you may need
Find a Gas Safe registered engineer near you and get it fixed properly.
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