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It's a viesman vitodens wb1a. Also the previous engineers just changed the part that was causing the problem and did not drain boiler like current engineer has! He told me the flow switch is being seized due to this grit and showed me 2 bits of grit and advised the filter be fitted! Apologies I...

Hi, I have had 4 engineers out to look at my boiler in the past week as I have been losing hot water or heating at one time. The engineer who has just left drained the boiler and found a couple bits of grit in the pipes he reckons this is the problem blocking the funnel switch between...

the house is a new built only a year ago and on the existing bends it has 22 printed on them, i bought 22mm straight solders from b n q they where too small by bout a 1m then my friend who is a gas engineer tried 22mm he had, he also tried a coupler whilch is used to fit old imperial to new...

Recently due to cold weather my mains water pipe burst luckly it was just above the cut off valve and managed to stop it before it got realy bad! but my problem is i bought 22mm copper pipe and 22mm solder straight couplers (house is a new built only last year) but for some reason the...