worker set up central gas heating boiler at home

Vaillant boilers repairs including Vaillant  codeF.75

Common errors and fixes for Vaillant boilers

Vaillant boilers are the original combi-boilers. Unfortunately despite German engineering they do sometimes go wrong. Some errors can be simple fixes a homeowner can do themselves which may cure the problem or be a temporary fix. However, we offer a competitive call out service to fix Vaillant and all other makes of boilers which when combined with an annual boiler service offers excellent value for money.

For a no obligation quote and excellent customer service

Call us now on 020 8102 9898 or email us

Common Vaillant boiler problems can be:

  • Code F75 - typically on older boilers that have never been flushed or had magnetic sensors fitted
  • Code F22 - water pressure is low which is the most common fault of all - although something you can do yourself we recommend a professional check by one of our engineers
  • Codes F27 and F28 - A frozen condensate pipe. Whilst it is simple to de-frost the pipe yourself we recommend a professional evaluation to prevent this recurring
  • Code F 28 (Vaillant turbomax only) - caused by no gas to the boiler or faulty ignition. We recommend you call us to send an engineer to provide a fix as part of our emergency call out service.
  • Code F29 - flame extinguished. Due to the variety of reasons this can happen we recommend an evaluation and fix by a qualified engineer.

Our guarantee

1st class service to all of our customers

All of our boiler and domestic heating engineers are fully qualified to install, service and repair all domestic boilers. We have a large call centre with ex-engineers answering your queries.

Wider service area - London & Greater London

Like Uber... we send you a link to track your engineers when they are on their way to your job.

Price match guarantee!

Our first hour charge includes parking, 15 minutes over the hour and any small consumables.