Boiler leaks when turned off

Question

Odd one this. There's a small puddle under the boiler in the morning but nothing while the heating is actually running, so we only notice it when everything's been off overnight. Pressure gauge looks normal too. Any ideas?

Chris · Answer

There’s a good chance if it’s a tiny leak that it seals up when the metal has expanded inside the boiler while the heating is on. If it’s only a small leak it may take a week or so to notice on the pressure gauge but definitely worth getting it fixed as it wont get any better

James · Answer

I recommend contact a heating engineer to inspect the leak

Phil · Answer

Same as the other persons telling you most likely a seal as gone or the condensation pipe under your boiler is leaking or split

Boiler leaks when turned off

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