The controls of your boiler can sometimes be responsible for snags that occur. A quick but quite thorough inspection of things like the thermostat, valves on the radiators , timers and programming equipment can sometimes be quite valuable. Don’t really attempt to do any complex servicing or repair work on your heating system yourself and always seek the skills of professionals such as Hampstead Plumbers and keep in mind that all boilers and heating systems should be serviced and checked regularly by a professional plumbing service. Be advised that while a gas engineer such a Hampstead Plumber can clean, service and recalibrate your old stat, it might be wise to have them install a new unit. The thermostat will control the warmth of your home when you want it and decrease the heat when you don’t The hot water and heating are controlled by the various switches on your boiler panel like the timed/off/constant switches. Make sure the display is reading accurately. If you have a thermostatic control valve, turn it up. If you have a conventional lock shield valve, then re-adjust the setting.If there is no change after you’ve adjusted the settings, there is a fault with your radiator valve and will need to call a Gas Safe registered engineer to drain the system and replace it and of course the work will always be guaranteed. Condensate pipes carry condensation from your boiler to your outside drain. When the weather is really cold this pipe can freeze and cause a blockage causing a shutdown. If the condensate pipe freezes your boiler’s display should provide some kind of warning for you a like a light or code. Following the above advice is good but any doubts about your DIY skills should result in you calling a qualified tradesman.“