Defrost a condensate pipe
If your condensate pipe freezes in the cold weather, your boiler will shut down, but it's easy to get it running again.
1. The condensate pipe is usually a white or grey plastic pipe which travels from your boiler through the wall to your outside drain.
2. If you think it has frozen, run your hands along the pipe to see if a section feels colder than the rest. This will be the blockage.
3. Use a jug or watering can to pour warm water along the pipe until it has thawed. Don't use boiling water as it can damage the pipe.
4. Restart your boiler.
5. To prevent the pipe from freezing again, wrap it in old towels or buy some foam pipe insulation from a DIY shop.