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Not able to top up water level on my ariston microgenus 20 MFFI

I have tried to unscrew the blue knob to let more water into the system to put the dial up into the blue level that it needs to be but without success - i have done this before successfully but it when i turn the knob no water is going in - any help would be gratefully appreciated - many thanks

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  • 108 Answers

Julie... I need more information to solve your problem. Such as make and model of your heater.


Posted on Nov 16, 2008

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I have an ariston 20/24 mffi combi pressure rises when switched to central heating but pressure ok when asking for hot water ? expansion vessel ?

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If it's leaking from a hose then you can try unscrewing the hoses, put some Teflon tape on the water heater threads and tighten. If it's leaking from the rim or under the threads call a appliance repairman.

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Moved in house Monday & have a radiator leak due to bad rust...what's best temporary repair to hold for a few weeks b4 plumber available? What sort of Boiler is Ariston Genus 24 mffi ?

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Dec 24, 2008 | Water Heaters

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make sure you completely drained and refill the system before use. your water level needs to be corrected or this will force water up the lines instead of steam
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heres a manual for your system

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