Advice for Frozen Condensate Pipes | WInter 2023 / 2024

We are experiencing lots of calls regarding frozen condensate pipes due to the cold weather.

We have compiled the following advice to help you if you are experiencing this issue.

LOCATE THE BLOCKAGE

The Condensate discharge pipe usually freezes at the most exposed points outside, such as the open end of the pipe, at a bend or elbow, or where there is a dip in the pipe where condensate can collect.

Step 1.

THAW THE FROZEN PIPE

The Condensate can be thawed in several ways. By applying a hot water bottle, a microwaveable heat pack around the blockage or by pouring warm water onto the pipe. It is important that you do not use boiling water.

Please take care if your condensate drainage pipe is not easily reached from ground level, and do not put yourself at any undue risk without seeking assistance or engaging a professional heating engineer—also be aware that if you are pouring water onto the pipe this can also quickly freeze on the ground, causing a slip hazard.

Step 2.

RESTART/ RESTART THE BOILER

Once the frozen blockage has been cleared, the boiler will usually need to be reset, and advice on how to do this can be found in the user instructions manual for your boiler. Normally this will involve simply pressing a reset button on the front of the boiler.

Step 3.

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