At a glance

  • Use the full model name, not only the manufacturer.
  • Check serial or manufacture details where the library asks for them.
  • Choose user or operating instructions, not an installer procedure.

Identify the appliance safely

Start with the name printed on the front and any model information visible without removing a cover. Your handover documents, service record or manufacturer registration email may contain fuller details. If a data label is not safely accessible, do not climb or open the boiler to reach it.

Photograph the visible controls and wording from a safe position. A model family can include combi, system and regular versions, different outputs and revisions. Match every available detail rather than choosing the first search result with the same brand name.

Use the official manufacturer library

Worcester Bosch, Viessmann and Ideal Heating provide official literature libraries. Search there before using a third-party copy, because the manufacturer can separate documents by production period and publish current safety information.

Look for a document described as a user guide, homeowner guide or operating instructions. Installation, commissioning and service manuals are written for competent professionals and may describe work that is not suitable for a householder.

Keep the manual with your records

Save the correct document with the boiler model, installation date, guarantee information and service records. Make sure other people in the home can find the normal controls and the correct support number without depending on one person’s phone.

If the appliance display does not match the manual or you remain uncertain, stop and ask the manufacturer or Corva to help identify it. Do not test internal components or remove the casing to resolve a document mismatch.

Your quick checklist

  • Manufacturer and full model
  • Combi, system or regular version
  • Visible product or serial details
  • User or operating guide selected
  • Manual saved with boiler records
Here when you need us

Turn a question into a clear next step.

Tell Corva what is happening at your property, your postcode and the help you need. We’ll discuss the appropriate visit, scope and availability across North Wales and the North West.

Explore boiler servicing

Further reading

For appliance instructions, always use the manual for your exact model. These official sources provide further background.