If your boiler stopped heating, you’re probably feeling the chill and the stress of a rising heating bill. Good news: many common boiler hiccups are easy to spot and fix yourself. In the next few minutes you’ll learn a simple checklist, when to DIY, and exactly when to call a qualified engineer.
First thing – check the pressure gauge. Most modern boilers need a pressure reading between 1 and 1.5 bar when cold. If the needle is low, bleed the radiators or top up the system using the filling loop. It’s a quick job: open the valve, let water in until the gauge reads right, then close it and reset the boiler.
The thermostat could be the culprit too. Make sure it’s set to “on” and the temperature is high enough. Sometimes the thermostat battery is dead; swapping it out takes a minute and can bring the heat back.
Got a gas boiler? Look for the pilot light. If it’s gone out, you’ll hear a click when you try to start the unit. Follow the manufacturer’s manual to relight it safely – usually you hold the reset button, press the control knob, and use a long match or lighter. If the flame won’t stay lit, a dirty thermocouple may need cleaning or replacement.
Listen for error codes on the display. Most boilers flash a series‑letter code that points to a specific fault, like a blocked condensate pipe or a failing pump. A quick Google of the code and your boiler model often reveals a step‑by‑step fix.
Lastly, check the external pipework. A frozen condensate pipe in winter can shut the boiler down. Wrap the pipe in insulation or gently warm it with a hair dryer – never use an open flame.
If you’ve tried the basics and the boiler still won’t fire, it’s time to call a Gas Safe registered engineer. Leaking water, strange smells, or repeated error codes suggest deeper issues like a faulty heat exchanger or a broken valve. These parts need specialist tools and a safe working environment.
Safety is non‑negotiable. Never attempt to open the gas valve, tamper with electrical components, or work on the boiler if you smell gas. If you detect a strong gas odor, turn off the main supply, ventilate the area, and call the gas emergency line immediately.
Even for a boiler that’s been running for 10‑15 years, a yearly service can catch problems before they cause a breakdown. A professional will clean the burners, test the pressure, and check the flue – all of which keep your system efficient and your bills lower.
In Nuneaton, we’ve helped dozens of homeowners avoid cold nights with fast, reliable boiler repairs. Our technicians arrive on time, diagnose the issue, and give you a clear price before any work starts.
So, start with the quick checks: pressure, thermostat, pilot light, error code, and pipework. If those don’t solve it, don’t risk it – call a qualified pro and get your home back to a comfortable temperature.
Wondering how much you might need to spend on getting your boiler fixed? Discover the common costs involved in boiler repairs, from simple fixes to more complex issues. Learn the factors that affect the price, and get tips on how to potentially save some money. Knowing what to expect can make a huge difference in managing your budget and ensuring a warm and comfortable home.