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2025-11-17 09:15:00

Frozen condensate pipe? Here’s how to get your boiler running again


With Met Office snow and ice warnings across the UK, many boilers may stop working due to a frozen condensate pipe.

The good news? It’s a simple fix — and you can usually do it yourself safely at home.

How do I know if it’s frozen?

✔ Part of your condensate pipe is outside

✔ You hear gurgling noises from the boiler

✔ You see error codes A01 or A61 on the display How to safely thaw your condensate pipe:

1️⃣ Locate the white plastic pipe outside your home. The blockage is often at a bend or at the end of the pipe.

2️⃣ Use warm (not boiling) water, a hot water bottle, or a cloth soaked in warm water to gently thaw the frozen section.

3️⃣ Once thawed, clear the fault and reset the boiler. I

It should start working normally again.

How to prevent it freezing again:

✔ Lag the pipe with weatherproof insulation

✔ Fit a drain cover to protect the end of the pipe Please check your condensate pipe before requesting an engineer, as frozen pipes aren’t covered by manufacturer warranty — and can usually be sorted in minutes.

Stay warm, stay safe.

Find out more https://ow.ly/uke050XtlP1