It's legal to perform a gas repair on your own. But you should never try to do so if you have the proper training and safety equipment. Dealing with gas is a sophisticated and potentially dangerous job requiring high expertise. This is why it is suggested to employ gas-safe registered engineers to carry it out.
A plumber or electrician could repair the boiler if the problem is limited to a non-gas component, like the pump used to circulate water or the control valve used to regulate the central heating system's temperature hidden inside the boiler's ornamental casing.
The shortage of gas in the UK is to blame. According to Ofgem, gas storage levels in the UK are at an all-time low. Gas Infrastructure Europe estimates the UK's gas reserves at just 10 TWh. It necessitates homeowners and businesses to keep their gas systems and appliances well-maintained.
Home heating systems can get out of order for various reasons, such as faulty wiring, worn-out parts, blockages, and incorrect installation. Regular maintenance and servicing can also prevent the system from breaking down.