Maintaining Your Combi Boiler

You may or may not know that there are some things you can do to help maintain your combi boiler between services!  So, to help you get started, we've created an easy to follow list of checks.

If you spot anything out of the ordinary your way the way, you should call in a local Gas Safe registered engineer (they should have the yellow triangle logo).


Your at-home checklist!

  • Leaks: Frequently check for any visible water leaks, the smell of gas, and keep a carbon monoxide detector nearby
  • Pressure: Check the gauge on the front panel. It can indicate an internal problem if it’s stays too high, too low or is inconsistent
  • Bleeding Radiators: If you can feel cold spots on your radiators, there's usually air trapped in the system. Grab a bucket and release it with your radiator key
  • Sounds: Bangs, whistles and/or knocking can indicate issues inside your boiler
  • Ventilation/Flue: If possible, check outside for blockages. Blocked vents can cause a build up of carbon monoxide
  • Thermostats: Make sure your thermostat is working properly. Installing a programmable thermostat offers more precise temperature control - 1 degree can make the difference on your bills!
  • Record Keeping: Trusted engineers leave you with a log of what was found and fixed. This can highlight recurring issues over time and help you with any warranty claims.
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