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David David is offline
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Default Looking for a leak

On Saturday, 9 March 2019 18:25:13 UTC, John Rumm wrote:
There is a leak somewhere in my central heating system - its losing
pressure regularly, and needs topping up with at least a couple of
litres a day.

Any bright ideas?


I had a cracked heat exchanger. Because it was a condensing boiler, it happily drained all the leaked water down the condensate pipe.

Could you see whether the boiler appears to be producing condensate even when it's powered off?

Alternatively, can you isolate the boiler and see whether its pressure decreases over time?