The guy didn't come. So I got myself a hose pipe and did it myself. Switched off the boiler and control box, isolated the manifold so that I wasn't draining down the whole system, opened the automatic actuators manually, connected the hose so it would drain into the nearby bath, opened the...
Thanks - per Dan's advice I've put in a little isolator (and a new automatic one) - if I continue to have issues I can use the isolator and swap for a manual one.
You actually can see the tundish (around the side of the tank, just out of view from this angle) but it was bone dry. Nothing coming...
Thanks - it sounded it to me, but what do I know... I've asked them to do a lever valve for maintenance and an aav again instead of switching to a manual. Will update here once I know more.
I really appreciate the advice Dan
Thanks for this. I've called up someone highly recommended this morning who referred me to someone else to get it replaced. They are saying that I shouldn't have an automatic air release valve in a closed system (because of gases that are produced or something), especially not with underfloor...
I was using it to keep it out of the way of the water. The guy who installed it put in incredibly short cables either side so by default it ends up dangling right in the path of the dripping water... Not super safe I would have thought!!
I've had a whole new central heating system installed, with an unvented hot water cylinder and underfloor heating, and ever since installation, boiler pressure has been dropping. The installer got through the guarantee period by telling me that it was air in the system, plus in the summer when...