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Mend Ariston microgenus 23 Heating Leak Pressure

Ariston microgenus 23 sounds like a jumbo jet!?

Ariston microgenus 23 sounds like a jumbo jet when the hot water is on, Ok when heating is on. The noise started suddenly, I checked the basics and found my system pressure very low (small leak from a radiator). I topped up the pressure but still the same. Hot water in shower fluctuates since the noise started.

Any idea chaps please?

Regards

Tony

toolbox tony
October 2014

Ariston Ariston microgenus 23 Heating, Home Heating Systems Heating Leak Pressure

The problem went away for months and has now returned. Does anyone have a clue if it is serious or not/expensive?

thanks

tony
October 2015

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Ariston Microgenus 23 Noise & Low Pressure