Baxi 105e leaking around heat exchanger

[Adam75]

Hi,

I had a leak where the pipes join the heat exchanger. I removed and cleaner the heat exchanger refitting with 4 new seals.

The leak is much less now but still leaking. The heat exchange is flat and securely in place. I can’t see why it’s still leaking.

Wondering whether to repeat again with another set of new seals or maybe but some type of sealant around the seals etc.

Any ideas please?

Thanks
Adam

 

[Madrab]

Usually the reason they leak is if the plate isn't sitting straight onto the block or the seals aren't sitting correctly, first off try a little silicone grease on the seals and tighten screws evenly

 

[ianmcd]

Which heat exchanger ? your boiler has two ? Main heat exchanger at the top, and DHW heat exchanger at the bottom

 

[dilalio]

Which heat exchanger ? your boiler has two ? Main heat exchanger at the top, and DHW heat exchanger at the bottom

Guessing it's a water leak as no FGA on this appliance.

 

[ianmcd]

Guessing it's a water leak as no FGA on this appliance.

thought I had deleted that , I meant Primary or secondary, then seen he had change 4 seals so is the secondary