If your boiler stops working, the first thing you feel is the chill in the house. You might wonder how long you can wait, what the danger is, and whether you can fix it yourself. The good news is that many common boiler issues have simple checks you can do before calling a technician. This guide pulls together the most useful advice from our articles, so you’ll know exactly what to do when the heat goes out.
First, check the basics. Is the power on? Is the thermostat set to ‘heat’? A tripped circuit breaker or a dead fuse can look like a broken boiler. Next, look at the pressure gauge – most boilers work best between 1 and 1.5 bar when cold. If the pressure is low, you can usually top it up using the filling loop; most manuals show a simple step‑by‑step.
Strange noises are another red flag. A banging sound often means air trapped in the system, which you can bleed using the radiator valves. If you hear a whistling noise, the water flow might be restricted – check for closed valves or a clogged filter. A lack of hot water can be caused by a faulty diverter valve; that’s a job for a qualified engineer, but you can reset the boiler using the ‘reset’ button and see if it clears the issue.
Some problems are best left to the pros. If you notice a strong smell of gas, turn off the boiler, open windows, and call the gas supplier right away – never try to light the boiler or fix a gas leak yourself. Persistent error codes on the display panel also signal a deeper fault that requires specialist tools. While you can replace a thermostat or bleed radiators on your own, a broken heat exchanger, leaking pipes, or a malfunctioning pump need a certified technician.
Safety is the main reason to call an expert. A boiler that’s overheating can cause pressure spikes, which might damage the system or even lead to a burst pipe. Regular annual servicing keeps the boiler running efficiently and catches hidden wear before it becomes a major breakdown. During a service, a pro will check the combustion, clean the heat exchanger, test safety valves, and confirm the gas pressure – all of which extend the boiler’s lifespan.
In short, start with the easy checks: power, pressure, thermostat, and simple resets. If those steps don’t bring back heat, or if you smell gas, hear loud bangs, or see repeated error codes, it’s time to call Taunton Appliance Repair Solutions. Our technicians know how to diagnose and fix boilers quickly, so you can get back to a warm, comfortable home without the stress.
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