We had the exchanger replaced on our Baxi combi because we couldn't get hot water and kept overheating. Turned out to be all filled with sludge, since done all good.
Until the last few days when I hear a frequent ominous rumbling lasting a few seconds each time, every few minutes.
Looking online this could be kettling but could the exchanger have got messed up so quickly and if so, why would it not just cut out... We're still getting hot water just fine.
How can I diagnose this better and is there anything I can do until the plumber can look (again!)?
Until the last few days when I hear a frequent ominous rumbling lasting a few seconds each time, every few minutes.
Looking online this could be kettling but could the exchanger have got messed up so quickly and if so, why would it not just cut out... We're still getting hot water just fine.
How can I diagnose this better and is there anything I can do until the plumber can look (again!)?
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