Boiler help / York + Yorkshire
A few sensible checks can often tell you what to do next.
Before you call an engineer, check your boiler's manual and run through a few simple checks below. It can save time and money — and we're always here if you need us.
Start with the basics
The model number is the quickest way to find the right instructions. Take a minute to check these details before searching the manuals below.
Find the data plate or label. Look on the front, underside or side of the boiler. It may be behind a flap, but do not remove the boiler casing.
Note the make and model. Write down the full name, such as Worcester Greenstar 30i, including any numbers or letters after it.
Record any error code. If the display shows a code or the lights are flashing, take a note or a clear photo before you look it up.
Find the matching manual. Use the make below, then compare the model name on the PDF library page with the label on your boiler.
A few things to check
Important: never attempt gas work yourself. Always use a Gas Safe registered engineer for anything involving gas or the inside of your boiler.
Check the boiler has power, the display is on, and the thermostat is calling for heat. If the boiler has been switched off, follow the restart instructions in its manual.
Still stuck? Call us on 01904 530 663 or contact us.
Look at the pressure gauge. If it is below the range shown in your manual, repressurise to around 1–1.5 bar using the filling loop only if the manual says it is safe to do so.
Still stuck? Call us on 01904 530 663 or contact us.
Cold spots at the bottom can mean air or sludge in the system. Bleed the radiators carefully, then check the pressure again. Persistent cold spots may need a service or powerflush.
Still stuck? Call us on 01904 530 663 or contact us.
Check visible pipework and radiators for leaks. Pressure that keeps dropping could point to a system fault, so call an engineer rather than repeatedly topping it up.
Still stuck? Call us on 01904 530 663 or contact us.
Look the code up in the manual and write it down. A reset may be explained there, but keep the code to hand when you call if the problem returns.
Still stuck? Call us on 01904 530 663 or contact us.
Banging, whistling, gurgling or rumbling can be caused by sludge or restricted circulation. It usually needs a proper service rather than repeated resets.
Still stuck? Call us on 01904 530 663 or contact us.
Follow the manual’s restart guidance if it has one. Never attempt gas work yourself or remove the boiler casing—call a Gas Safe registered engineer.
Still stuck? Call us on 01904 530 663 or contact us.
If it is safe, turn off the water supply to the boiler and switch the boiler off. Keep clear of hot water and call an engineer as soon as possible.
Still stuck? Call us on 01904 530 663 or contact us.
Find the right instructions
Choose your boiler's manufacturer to browse a free external manual library.
Free external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryFree external library
User, installation and servicing manuals for all models.
Open free manual libraryThese links open free external manual libraries for reference; Advanced Plumbing and Heating does not own or endorse them. Can't find your make or model? We install, service and repair all major boiler brands across Yorkshire from our York base — get in touch and we'll point you to the right manual.
Gas fire support
Looking for a gas fire manual? These official manufacturer and support resources can help you identify the right document.
Official external resource
Use the Stovax / Gazco technical information library to find manuals and technical documents for Gazco fires.
Find gas fire manualsOfficial external resource
Browse the official Focal Point gas-fires downloads page for user and installation information.
Find gas fire manualsOfficial external resource
Visit Flavel support to look up manuals and guidance for Flavel gas fires.
Find gas fire manualsChoose the exact model first. Check the fire's data plate or label, then select the matching model on the manufacturer's website before downloading a manual.
Safety first: gas fire installation, servicing and repairs must be carried out by a suitably qualified Gas Safe registered engineer. These manuals are for identification and user guidance only.
These gas fire links go to external manufacturer or support websites. They are not Advanced Plumbing and Heating documents, and the freeboilermanuals.com boiler libraries above do not host these gas-fire manuals.
Local help when you need it
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