24 September 2018
As we head into the chillier months, it’s more important than ever to keep your house warm. Unfortunately, central heating problems can occur from time to time, and it’s vital to know what to do or who to call when your heating system fails.
Winter is coming and, if it’s anything like last winter, we’re in for another frosty one. This makes an efficient and reliable heating system more important than ever. But nothing is without its faults and, sometimes, central heating problems can appear out of the blue, which can prove to be particularly troublesome in the colder months. In this post, we’ll highlight a few of the common central heating problems to look out for.
When this happens, your first step should be to check that your thermostat is on (this sounds obvious, we know, but you’d be surprised how many times it’s not), and set between 17 and 20 degrees. If your radiators don’t generate heat, check your programmer to make sure that both central heating (CH) and hot water (HW) are switched on. Finally, check that your system is getting electricity, as the heating fuse may have blown.
If the issue continues, check the motorised diverter valve, which you’ll find next to your boiler. This valve regulates the flow of hot water and could be the reason for your lack of heat. From here, try the classic “turn it off and on” technique to see if it rectifies the problem.
If you’re still having no luck, then the issue could be the pump. This sends water down the flow pipe to your taps and radiators. If there are any problems when you turn this off, there may be a mechanical failure or blockage. If it appears to be clogged, the solution is to have it cleaned by a professional.
This tends to be one of the most common central heating problems and, arguably, the most straightforward to fix. If you’ve noticed that your radiators are only warm at the bottom, then you need to “bleed” them.
First, you need to prevent air from entering the central heating system by turning off the pump. Before you do anything else, it’s vital to put a bucket underneath the corner that you’re working on — a floor covered in dirty water isn’t something you want to add to your list of problems. Use a radiator key to turn the square nut at the top corner of the radiator. Turn the nut anticlockwise until you can hear air coming out of the radiator and water begins to drip into your bucket. Finally, tighten the nut and continue to check it for further leaks. Once bled, heat should start moving to the top of your radiators.
When a boiler is making a strange sound, it’s often referred to as “kettling”, which is because the noise being produced sounds similar to that of a kettle boiling.
Start by turning the boiler off to see if the noise being made is due to trapped air. You can vent any excess air by locating the air bleed screw. However, this may be due to sludge causing a blockage in the system and preventing enough water from filtering through.
If your boiler continues to make a kettling sound and shows no signs of improvement, a plumber will be able to diagnose the issue and fix it efficiently. Whether your heating system requires a flush or a more advanced fix, having a professional on the case will ensure that you are covered in the long run.
Are you experiencing central heating problems? Homecure Plumbers specialises in central heating systems. Our expert team of certified plumbers in London is on hand to help. Call our team of qualified engineers on 0800 002 9991.
We needed someone to fix the heating - boiler quickly. Our tenants needed heat and water. Homecure Plumbers answered our telephone call in a professional way. The engineer came on time and fixed the problem quickly. He was very polite and took an interest in the job. (most don't) The price charged was fair and reasonable. I would use them again. Invoice Number 9733A dated 30th July 2021.
Homecure removed and blocked off a gas pipe to an old fireplace. They tested the gas system for correct pressure and properly ensured the system was in a good state after the works were complete. I would recommend them as they clearly knew what they were doing, and communicated to me throughout so I was assured everything was OK. Thanks Homecure! 9880 - Vijay Patel
We have an IKEA kitchen and plumbers always seem reluctant about dealing with it; but not Homecure CS. They provided a reasonable pricing system and arranged to do the job the following day. The plumber had the tap changed in a matter of minutes. He was friendly and professional. Would recommend. Tara 9469
At Homecure we have been regularly updating our working practices in line with health and safety advice provided by the Government. For customers who are self-isolating and in need of emergency plumbing and heating services we want to assure you that we are doing everything possible to minimise the risk of the spreading the coronavirus while we carry out our tasks.
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