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 Post subject: Baxi Solo 15 HE Leaking
PostPosted: Sat Jul 22, 2017 7:31 pm 
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Hi there,

I having trouble identifying the source of a leak from a Baxi Solo 15 HE boiler.

On a couple of occasions I have noticed a puddle of water under the boiler when I've gone into the kitchen in the morning, but when I have removed the facing plate and turned the boiler back on, the inside of the boiler is dry and I can see no signs of a leak.

I have read through other posts on this forum and the condensing unit seems to be prone to issues.

Can someone in the know please look at the attached photos and see if the condensing unit should look like it currently does - it appears full of silt/crud to an untrained eye. There seems to be limescale at the top right of the unit.


I'm in a rented property and the boiler does have an annual service by a GasSafe/Corgi plumber. Should the consending unit be cleaned as part of this service?

Thanks in advance,


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PostPosted: Sun Jul 23, 2017 10:39 am 
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Unfortunately these are awful boilers.

I have quite a few on my books, mainly that are rented out properties, and generalising, they are nothing but trouble once they get a few years old.

I always inspect the condensate trap and usually drain it at the yearly inspection, this removes most of the sediment from it, which, sadly, is the heat exchanger being slowly eaten away!

If it is really bad then I remove it and thoroughly clean it out.

The sump seals can also fail on these, the fan has to come out and the sump removed from underneath, but once these get older the main heat exchanger rots away and leaks itself, usually at the back where nobody can see it.

Once I have decided this is the case, I always get the letting agent/landlord to book a fixed price repair from Baxi, although I have known it to take a few visits before they actually replace the heat exchanger.

They don't like replacing it, must be down to the cost, allegedly!


For this message the author gas4you has received gratitude : Allen65
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