How can I fix my comby gas boiler vaillant ecoMAX pressure problem?
Thanks for letting me know about my gas boiler vaillant ecoMAX pressure problem , I did tried the way you told me but after few minutes the boiler start making funny noises . I dont know why ?
Did shut valve after filling look like you left open
ltd
September 2013
Did you got it right pressure 1.2 bar or look like did you over filled it it will make noise ,you reduce open air vent on radiator take some water out ,could be air in system make sure auto air vent next to pump is open two turn
ltd
September 2013
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