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Why is the boiler be losing pressure?

Chris Derrer - Monday, January 29, 2018

You’re nice and toasty in bed at 6:30am and ring, ring, ring, ring! After taking a few seconds to stir, and asking yourself what kind of person is up this damn early complaining, you answer your phone. The person on the other end of the phone has no heating… the cause? Low boiler pressure. As much of a common problem this is, we would like to take your through the quickest and easiest, yet most effective steps to take in determining the issue and fixing it.

 

Firstly (and likely the most obviously)

 

Check for any leaks in the system… This includes the boiler itself, any cracks in radiators or gas/central heating pipes. This means checking radiators, valves, inputs, outputs, pipework, and joints. Whilst that sounds like a lot, it’s quite quick and easy and lost pressure is most commonly found in central heating systems that have cracks or lose valves. Once you have repaired or replaced these items, pressure should rebuild naturally within the system. Hey presto, we have heat!

 

What if you can’t find any leaks?

 

Then the problem is not down to a leak, but what it could be down to is a faulty pressure release valve. You should be able to locate and either repair or replace the valve, though the second option is likely to be more effective for your client as a long-term solution. Be sure to tell your client to keep an eye on things after it has been fixed and to see if the pressure slowly returns towards it’s normal status.

 

Boiler maintenance?

 

Often a lack of pressure comes down to pure lack of maintenance of the system. If the system is maintained properly then there is less chance of a breakage, split, or faulty valve occurring to a such an intensity where pressure is lost. Tell your client to maintain the boiler by doing certain easy-to-do tasks. One of which is getting it serviced frequently, either by yourself or a gas safe engineer. Servicing boilers regularly also means there will be less chances of malfunctions that can lead to Carbon Monoxide poisoning and other horrendous and lethal accidents. Carbon Monoxide poisoning from faulty boilers causes around 3,450 deaths a year in the UK and that’s only for people aged between 16 and 64, according to a recent study. We should always be making our clients aware of the dangers associated with central heating and boilers, because one day it could be a cracked valve… the next it could be a rather expensive fix, or even worse human health issues.



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