Viessmann - The company from hell
New flagship model Viessmann 222 boiler installed in August 2022. Nov 2023 it developed a fault and required the installer to replace the pump. Apr 2024 another fault left with no hot water or heating. Although connected to the internet from the point of install, it seems there's a totally separate process required to get the "warranty". So instead we have the standard manufacturers warranty...
But this is where it's extraordinary - that warranty they claim is from the point which the merchant first had it in stock !!! Not when we bought it, or installed it !! And guess what, that stock date was just outside 2 years !! So we have no warranty at all, for a boiler that's less than 24 months old.
It gets worse...
At this point the boiler was failing every hour or so, needing restarts, but delivered occasional tepid water if timed correctly.
2nd Apr - our installer changed the pump, but software still showed faults. So we needed to call Viessmann to get a (chargeable) engineer out
5th Apr - Viessmann engineer changed the pump again then said he need to order circuit boards, valves etc..
16th Apr - 2 weeks in and the Viessmann engineer appeared with parts. Changed circuit boards, valves etc.. and said the water was a bit dirty (which curiously he hadn't noticed a week and a half earlier - possibly given the whole system had been flushed 18 months before during installation) then disappeared saying it was fixed.
16th Apr evening - zero hot water. Not showing any errors now, but absolutely no hot water.
17th Apr - called Veissmann. Veissmann engineer said it was working fine when he left, and blamed dirty water. Refused to come back again.
So its amazing - a system throwing errors all the time, needing restarts, and giving a bit of tepid water, has gone to completely defunct, straight after a Viessmann engineers visit - and the engineer has the gall to claim its nothing to do with him, and we should call our installer.
17th Apr - Viessmann customer service agreed to send competent engineer round on friday.. Thank you Jane.
Welcome to Viessmann. Appallingly unreliable products. Appalling service. You simply couldn't make it up.
1 April 2024
Unprompted review