It’s not always necessary to call out an engineer to fix your boiler problems. Sometimes a boiler scare can be solved with a quick DIY fix.
With a bit of elbow grease and 24|7 Home Rescue’s guide, you may be able to fix the problem yourself:
1. Re pressurise your boiler
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’s 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.
2. Reset your boiler
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.
3. Bleed your radiators
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.
You can find more information about bleeding your radiators here.
4. Change thermostat batteries
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.