Unblock condensate pipe on boiler

Question

How do I unblock a condensate pipe on boiler myself? Before calling somebody out. Definite odour coming from the condensate pipe from the boiler and all down the pipe to the kitchen.

Kalum · Accepted Answer

Hi, if the condense pipe goes into the kitchen sink, it’s usually blocked by water and causes an air lock. If that’s the case the. You can just take off the pipe to the boiler and blow down it.

It could also be blocked my muck that has built up in the waste pipes under the sink which would then mean that you need to take off the waste pipe under the sink and clean it out.

Hope this helps!

Robert · Answer

Hello usually the condense pipe will be blocked where the pipe is connected to the waste pipe under the kitchen sink.

Marc · Answer

You need to be gas safe registered to work on the condensate pipe as it’s classed as part of the flue system

Chuks Paul · Answer

You will  usually  find the blockage where the boiler condesate pipe meet the kitchen sink drain pipe.

Jason · Answer

The condensate pipe is blocked due to the kitchen waste pipe being blocked. 
Remove the kitchen trap, unblock it and reattach it. Have a bucket handy as when you disconnect the trap dirty water will escape.

Unblock condensate pipe on boiler

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