DISCLAIMER:
This video is only intended for use by qualified Gas Safe Registered engineers. You must not attempt any work on your boiler if you are not qualified. You must always carry out 26.9 checks upon completion of works on a boiler.
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This video shows how I carry out a replacement of a combustion control unit on a Baxi Heat Only boiler. You would do the same if you were to do a full strip and clean of the main heat exchanger too.
![](https://i.ytimg.com/vi/sVcWj8m3-2g/mqdefault.jpg)