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Ian Stirling

wrote:
I've got a recurring problem with my CH. Having just moved into my new
(3 year old) house, I woke up one morning to find a flood in the
kitchen that appeared to be coming from the non-condensing CH boiler.
After consulting a plumber, it appeared to be due to a leak coming from
the pipes at the top of the boiler. This had obviously been happening
for a while and required a new boiler as some corrosion of the case had
occurred (the only part NOT available was the case = new boiler!). Due
to the new rules, I had to get a condensing boiler at some expense...
but was happy that the problem was solved.. except its now happened
again, 3 months later! However, this time its slightly different / I
have a few more details...

- The leak is coming from the bottom of the boiler (dry at the top - no
sign of a leaky pipe)
- It occured whilst the boiler was on
- I've been having problems this week with a bathroom sink (slow
draining) and I think this time the two are related.. there was a
strange gurgling tonight / foul smells from the sink and I came
downstairs and found the flood about an hour later

A condensing boiler will produce most water output in foggy conditions.
If this can't drain away properly, and the water builds up in the
pipework, things are going to leak.
If possible, disconnect the condensate drain, and put it into a bucket.

I'm pretty sure it's got nothing to do with the original leak.