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    viessmann vitodens 100

    Hi This Viessman boiler was purchased 20/09/06, so its out of warranty. It's working perfectly except for this sticking diverter valve, the valve is listed as a step motor cartridge but I'm thinking it can't be removed from it's housing. Do you think I'm right and it comes as a...
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    viessmann vitodens 100

    A Viessmann vitodens 100 boiler has begun to heat the radiators when on hot water only, causing it take along time,and alot of gas to heat the water to luke warm. I'm assuming It's the step motor cartridge that's at fault, the question is . How do you remove the step motor...
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    viessmann vitodens100

    vitodens 100 Sorry Tony, I thanked you for the info before I got back to the boiler. Sure enough,the oddly named jemmyslapper was fixed tight, Ive opened it up and sprayed the edges of the flap with silicon rarther than removing it, It has cured the problem but only time will tell...
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    viessmann vitodens100

    thank's for your help guy's much appreciated
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    viessmann vitodens100

    a 3 year old vitodens 100 suddenly stopped firing up on either water or heating, fault code F5 the book say's check fan & air pressure valve, the fan is working ok,the valve test's ok but is not operating can anyone give me a rough idea as to what the problem is .
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