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Boiler Not Working? Here Are Some DIY First Steps

Boilers are necessary for producing heat and hot water, however they occasionally have typical issues. The absence of heat or hot water is one such problem. You can attempt a few DIY solutions before making a service call.

Thermostats settings

First, examine the thermostat’s settings and, if necessary, change the batteries. Next, ensure that the boiler is receiving power and check the circuit breaker for any tripping issues. Bleeding radiators using a radiator key can release trapped air and restore adequate heating if some radiators are heated while others are still chilly.

Strange noises

Even while strange boiler noises might be alarming, they frequently have straightforward fixes. Banging, whistling, or gurgling noises might be a sign of a broken part or trapped air in the system. Bleed the radiators to get rid of air bubbles as a solution. Examine the water pressure and set it at the boiler manual’s suggested level. Check for any loose connections on the pump and valves, as these might be the source of the noise. The problem may be fixed by tightening or changing problematic components.


Property loss and a more serious issue might result from boiler leakage. Turn the boiler and water supply off right away if you spot a leak. Check the boiler and the nearby pipes for any obvious leaks, and if necessary, tighten any loose connections or replace any damaged parts. A malfunctioning pressure relief valve, which has to be replaced by a specialist, might also result in leaks. Leaks should be fixed right away to stop further damage to the boiler and your property.

Pilot light

There are a few measures you may do to troubleshoot if the pilot light on your boiler keeps going out. To safely relight the pilot light, adhere to the manufacturer’s instructions. To stop the pilot light from going out, look for draughts near the boiler and plug them. If you think the pilot orifice is clogged, you should also clean it with pressurised air or a fine wire. However, it’s critical to get in touch with a certified boiler specialist if these do-it-yourself treatments don’t address the problem. To prevent potential risks and guarantee the boiler’s safe and effective functioning, some boiler issues may require professional competence. Regular expert maintenance may also aid in preventing common issues, prolonging the boiler’s lifespan, and lowering the probability of breakdowns.

At Mitchells we understand that DIY can only go so far which is why we offer boiler replacements and boiler maintenance. Please contact us for me information. 

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