Having problems with your Cars & Trucks ?

Vaillant ecoTEC pro 24 as started to make a loud hissing noise the pressure gage is showing the needle on red and the pressure does go down when the hot water tap is turned on full as soon as its turned off it goes back up to red. How can I fix this Any advice please

Posted / edited by AnonymousUser on : 19-02-2018

Answers :

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