Help & advice for your boiler

Check the data badge on the boiler casing or inside the front panel — it shows the model and serial number.

Note the code shown on your boiler’s display and check what it means in your boiler manual. Some codes clear with a simple reset or by repressurising the system, but if the code returns or you’re unsure, don’t keep resetting it. Report the fault and a Gas Safe engineer will diagnose it. Many common codes are also explained in our boiler error-code guides.

Turn the boiler off and let it cool. Locate the filling loop (usually a silver braided hose beneath the boiler) and open both valves slowly until the pressure gauge reads around 1 to 1.5 bar, then close them and restart the boiler. If the pressure keeps dropping there may be a leak, so report it and an engineer will take a look.

Call a Gas Safe engineer if you have no heating or hot water, a persistent error code, a leak, or strange noises. If you smell gas, turn off the gas supply at the meter and call the National Gas Emergency line on 0800 111 999 first. PlusHeat customers can report the issue and we’ll arrange an engineer.