Boiler Not Working? 5 Checks Before Calling an Engineer

Boiler Not Working? Try These 5 Simple Checks

We know the panic that sets in when your boiler stops working—especially on a cold Bedfordshire morning. While some issues require a professional, there are a few quick things you can check yourself before calling out an engineer.

Here are 5 simple boiler checks every Biggleswade homeowner can do:

Check the Power Supply
It may sound obvious, but a tripped fuse or power cut could be the culprit. Make sure the boiler is plugged in and your fuse box hasn’t tripped.
Look at the Boiler Pressure
If the gauge is below 1 bar, your boiler may not fire up. You can top it back up to around 1.5 bar using the filling loop (see our boiler pressure guide for step-by-step instructions).
Reset the Boiler
Modern boilers have a reset button—sometimes a simple reset is all that’s needed to get things running again.
Check the Thermostat Settings
Make sure the thermostat is set correctly and hasn’t been knocked, switched off, or had its batteries run out.
Look for Frozen Condensate Pipes
In cold Bedfordshire winters, external pipes can freeze, blocking your boiler. If you suspect this, try gently thawing it with warm (not boiling) water.

Still No Luck? Call the Experts in Biggleswade
If your boiler still won’t start after these checks, it’s time to call a professional. At Nexus Plumbing & Heating, our Gas Safe registered engineers can quickly diagnose and repair the issue.