If you’ve found yourself asking, “Why is my boiler not turning on?” you’re not alone. At Chiltern Boilers, we frequently hear from homeowners across Aylesbury and Buckinghamshire facing this frustrating issue. While a broken boiler can be a major inconvenience, there are some common causes that might explain the problem — and in some cases, you may even be able to fix it yourself.
Common Reasons Your Boiler Might Not Be Working
- Power Supply Issues
Check your home’s power supply to ensure there’s no trip in the fuse box. Sometimes, a simple reset may be all that’s needed. - Low Pressure
Boilers need adequate pressure to function properly. If the pressure gauge is below 1 bar, this may be the culprit. Topping up the system using your filling loop can often resolve this. - Thermostat Problems
Ensure your thermostat is set correctly and has working batteries. If it’s not communicating with your boiler, your heating won’t kick in. - Frozen Condensate Pipe
During colder months, the condensate pipe can freeze, preventing your boiler from operating. Thawing the pipe carefully with warm (not boiling) water may fix the issue. - Pilot Light or Ignition Failure
Older boilers may have a pilot light that’s gone out, while newer models may display an ignition error. Follow the manufacturer’s instructions to reignite the boiler safely. - Faulty Components or Leaks
In some cases, internal faults such as broken valves, airlocks, or leaks may require professional attention.
When to Call an Expert
If you’ve tried the above steps and your boiler still isn’t turning on, it’s time to seek help from a qualified engineer. At Chiltern Boilers, we have experienced gas safe registered boiler engineers who can quickly diagnose and repair your boiler in Aylesbury and across Buckinghamshire
With expert service and a dedication to customer satisfaction, we’ll ensure your home stays warm and comfortable throughout the year.
Please contact us at 07775 922108 to arrange a visit or if you have any questions — we’re here to help!