Posted by boilerPRO Team
Last updated 21st November 2023
reading time
When your boiler stops operating like it should do, it can be hard to know when to call an engineer out. However, if you feel it is something serious, then we would always advise you to call us straight away.
First of all, if you have a prepayment meter, check that you’ve got enough credit. Next, test whether your other gas appliances, like your cooker hob, are working correctly, or whether the switches in your fuse box have tripped.
Refer to the boiler’s manual to find the reset button and push it for 10 seconds. After a few minutes, the boiler should start working again. Attempt it a second time if the initial reset doesn’t work.
Remove the thermostat housing from the wall mount and turn it over to find the battery removal slots. Take out the old batteries and replace them with new ones. Most thermostats will require 2 X AA or 2 X AAA batteries. Fix the thermostat housing back onto the wall mount. It may take a few days for low battery warning sign to disappear from the monitor.
In cold weather, the condensate pipe outside your home can freeze, which prevents the boiler from firing up. This common problem can be fixed by warming up the condensate pipe with warm water.
Have you had a power cut recently? Your boilers timer might have reset – which means getting it working again could be as simple as re-programming it with your times. Take a look at its instruction manual for a reminder on how to do this.
With the heating turned on, check the radiators to assess which ones aren’t warm. Once they’ve been identified, turn off the central heating. Once cool, use a radiator key and attach it to the valve. With a cloth, slowly turn the key anti-clockwise. If you can hear a hissing sound it means that there is gas escaping. Once all of the gas has escaped, the valve needs to be closed again. We recommend consulting us before undertaking this measure.
There should be a water pressure indicator on the front of your boiler. If the indicator is below one, your boiler pressure it too low. Next you need to find the boiler filling loop, which is probably at the bottom of the unit. Make sure the boiler is turned off and the ends of the hose are attached to the valves. Open the valves and you should be able to hear water filling up the system. Watch the pressure indicator until it reaches 1.5, then close the valves and switch the boiler back on.
If you made your way through this list and have found that none of it works, then give us a call.
Our website uses cookies to make your browsing experience better. By using our site you agree to our use of cookies.