Bear in mind I know nothing about plumbing. ( or gin).
Home late last Sunday from Spain my alarm key pad wouldn’t work ( sorry neighbours) and my CH wouldn’t come on. HW was ok so at least the boiler worked. Rang my plumber the next day who only 12 months ago installed a new combi ( replacing the old boiler, HW cylinder, header tanks) and he talked me through topping up the system to 1.2, ( digital readout on my Intergas boiler) which had been showing 0.
Then the CH came on, but there must be a leak somewhere..there are no obvious leaks from any radiators which is a worry as I’m going away for 3 months again early 2021.
Any ideas please ?
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