A boiler breakdown is never convenient. Whether you’ve suddenly lost heating, have no hot water, or your boiler is displaying an unfamiliar fault code, it can be stressful when your heating system stops working.
If you’re dealing with a boiler breakdown, there are a few simple checks you can carry out before calling a heating engineer. In many cases, the issue may be something straightforward that can be resolved quickly.
At Becketts Plumbing & Heating, we provide boiler repairs and boiler servicing throughout Hampshire. Our Gas Safe registered engineers regularly diagnose and repair boiler faults, helping local homeowners get their heating and hot water restored as quickly as possible.

Check The Power Supply
One of the most common causes of boiler problems is a loss of power.
Check that your boiler is switched on, the fused spur has not been turned off, and no circuit breakers have tripped in your consumer unit. If your boiler display is completely blank, the issue could be electrical rather than a fault with the boiler itself.
Check Your Thermostat
Sometimes the boiler itself is working perfectly, but the thermostat is preventing the heating from coming on.
Check that the thermostat has power, the temperature is set higher than the current room temperature, and any smart heating controls are connected correctly.
Check Boiler Pressure
Most modern boilers operate best between 1 and 1.5 bar pressure.
If the pressure has dropped too low, your boiler may stop working or display a fault code. You can usually check the pressure gauge on the front of the appliance.
Try Resetting Your Boiler
Many boilers have a reset button which can clear temporary faults.
Check your manufacturer’s instructions and follow the recommended reset procedure. If the fault returns shortly afterwards, there is likely an underlying issue that requires professional attention.
Check For Frozen Condensate Pipes
During cold weather, frozen condensate pipes are one of the most common reasons for boiler breakdowns.
The condensate pipe is usually a white plastic pipe that runs outside your property. You can carefully thaw the pipe using warm water. Avoid using boiling water as this can damage the pipework.
Common Boiler Faults We Repair
As local heating engineers, we regularly attend boiler repairs throughout Southampton and often see the same faults occurring.
- Low boiler pressure
- No heating or hot water
- Boiler ignition failures
- Leaking boilers
- Faulty pumps
- Frozen condensate pipes
- Thermostat faults
- Fault codes and lockouts
- Noisy boilers
- Radiators not heating properly
When To Call A Boiler Repair Engineer
If you’ve completed the basic checks and your boiler is still not working, it’s time to call a professional.
You should arrange a boiler repair if your boiler keeps losing pressure, won’t restart, is leaking water, continues to display fault codes, or you have no heating and hot water.
Gas Safety Advice
If you smell gas, turn off the gas supply if it is safe to do so and open doors and windows immediately.
Do not use electrical switches, naked flames or anything that could create a spark. Contact the National Gas Emergency Service on 0800 111 999 straight away.
How Regular Boiler Servicing Can Prevent Breakdowns
Many boiler breakdowns can be avoided with regular servicing.
An annual boiler service helps identify worn components, safety concerns and performance issues before they develop into costly repairs. It can also improve efficiency, lower running costs and help maintain your manufacturer’s warranty.
Need Help With A Broken Boiler?
If your boiler has stopped working and you need reliable boiler repairs, Becketts Plumbing & Heating are here to help.
Our Gas Safe registered engineers provide honest advice, professional workmanship and dependable heating services to homeowners throughout Southampton and the surrounding areas. Whether you need a boiler repair, fault diagnosis or annual boiler service, we’re ready to get your heating system back up and running.