- Messages
- 361
Dribble in the tundish, sometimes hw sometimes c? What's going on?
Changed prv- and tprv, found exv poooped, changed that too. Continued to dribble- called V tec - said it had to be pressure reducing v, ( but the water is hot ) - changed that and guess what ? It's still dribbling!!
V tec said the only other thing it can be is the coil within, which could be scaled up. REALLY?
Has anyone had a scaled up coil?
What can it be? Usually solve this dribble in the tundish, by changing the prv/combination valve...
SUPER WEIRD is that this is one of 2 Vaillant UNV cylinders (not in the same house) that have the same problem... can't really move on to the next one if I can't sort this one...
Any hints greatly appreciated
Changed prv- and tprv, found exv poooped, changed that too. Continued to dribble- called V tec - said it had to be pressure reducing v, ( but the water is hot ) - changed that and guess what ? It's still dribbling!!
V tec said the only other thing it can be is the coil within, which could be scaled up. REALLY?
Has anyone had a scaled up coil?
What can it be? Usually solve this dribble in the tundish, by changing the prv/combination valve...
SUPER WEIRD is that this is one of 2 Vaillant UNV cylinders (not in the same house) that have the same problem... can't really move on to the next one if I can't sort this one...
Any hints greatly appreciated