- Joined
- 1 Apr 2016
- Messages
- 180
- Reaction score
- 1
- Country
I've just had to order a new diverter valve for my Vaillant Ecotec. The original part PN: 178978 has been superseded by PN: 0020132682. It has a different motor and the kit comes with a wiring adapter for this.
Does anybody know if the new part is an improved design?
Does anybody know if the new part is an improved design?
Last edited: