Our shower pump has just died, and we've bought an exact replacement (a NewTeam varispeed 50). When the old one died, water would simply flow through it and out of the shower, albeit not at much pressure.
We fitted the new one yesterday. Although 3 out of 4 pipes in/out of the pump had valves in the pipes, the fourth (cold water feed in) didn't, so we drained the water tank in the attic before opening up the pipes, and swapping over the pump.
When we came to use it today, the pump switched on for a few seconds, then shut down, with no water coming through at all. The pipes were boiling hot, and it seems that the cold water feed isn't getting through. Although we ran water through the pump before switching it back on, as in the installation instructions, we didn't realise that the shower temp had to be on full-cold, so there seemed to be water coming through fine (the hot tank was empty so I presumed the water from that was the cold feed...)
Now, however, even with the pump switched off at the mains, no cold water comes through at all. We've tried taking the shower head off and turning the cold on, but nothing comes out, even after a few minutes.
I presume there must be an air lock somewhere - does that sound likely? If so, how do we get it out? Do we need to drain the water tank and refill it again?
Any ideas would be appreciated.
We fitted the new one yesterday. Although 3 out of 4 pipes in/out of the pump had valves in the pipes, the fourth (cold water feed in) didn't, so we drained the water tank in the attic before opening up the pipes, and swapping over the pump.
When we came to use it today, the pump switched on for a few seconds, then shut down, with no water coming through at all. The pipes were boiling hot, and it seems that the cold water feed isn't getting through. Although we ran water through the pump before switching it back on, as in the installation instructions, we didn't realise that the shower temp had to be on full-cold, so there seemed to be water coming through fine (the hot tank was empty so I presumed the water from that was the cold feed...)
Now, however, even with the pump switched off at the mains, no cold water comes through at all. We've tried taking the shower head off and turning the cold on, but nothing comes out, even after a few minutes.
I presume there must be an air lock somewhere - does that sound likely? If so, how do we get it out? Do we need to drain the water tank and refill it again?
Any ideas would be appreciated.