From a plumbing company. Advice about condensing boilers that “stop working” in this weather.
We have had lots of phone calls regarding boilers not working due to the condensation pipe from the boiler being frozen – this is the white pipe that comes out of the bottom of your boiler.
If you boil the kettle and carefully pour the hot water over the white pipe this should defrost any blockage and get you up running. Please repost this, as it may help old people or people with young children in this very very cold weather 
🙂
Video HERE