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heinrich

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heinrich

vaillant combi boiler

I have a VCW-GB 242 EH on my heating system. I loose approx 1 bar per day in my heating. I want to test if it is a leak in my system or an internal problem on the boiler. I have no obvious external...
08:55 Fri 28th Mar 20081 answer, last by gucciman 20:48 Fri 28th Mar 2008

Only 1 question