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To clarify: the water comes out of the taps but it is cold. Also, the heating system doesn't heat, but sounds like it's pumping water through to the radiators. In both cases it sounds like the ignition is trying to go on (clicking noises), but no heating occurs. We have gas to the cooker...

I did a search but couldn't find anything exactly like this problem, any ideas please? Our Vaillant Turbomax Plus boiler developed a problem where hot water does not appear. On examination we first found that the water pressure had dropped to about 0.8. We followed the procedure in the...