I have moved into a house which uses a Grundfos UPS 3 pump to circulate the water in a wet underfloor heating system. Last autumn the pump would not start - the blocked message showed - so I replaced it. This year, the same thing has happened with the new pump. I have freed the impeller using a screwdriver as advised in the instructions but the red and orange error signal still appears. Any suggestions ?
Discuss Grundfos UPS 3 pump - blocked message in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
- Messages
- 34,369
- Solutions
- 2
Screwdriver in the centre and give it a wack inwards
Thanks very much. I also took the pump apart and, although I could not see what was sticking, it worked when I put it back together. Happy days - for the time being !
- Messages
- 34,369
- Solutions
- 2
It’s a common problem they don’t like not working for months best to turn it on and run it once a month
Reply to Grundfos UPS 3 pump - blocked message in the UK Plumbing Forum | Plumbing Advice area at PlumbersForums.net
Similar plumbing topics
Hello everyone,
I have a Grundfos SoloLift2 WC1 on a toilet and since a few months the impeller keeps getting stuck.
I was quite happy to...
Hello, my Mothers heating failed in the recent UK cold snap. I found the pump was stuck. I have a question about pump orientation. The...
Ups pump issue
Fairly recently, say 12 months ago, we had a new pump fitted.
It's a grundfos ups3 15- 50/65 130.
(We have a small expansion tank...
- Steve Thackeray
- UK Plumbing Forum | Plumbing Advice
Hi everyone. Bit of a daft question but I’ve just had the pump replaced by the housing group where I live.
They’ve fitted a Grundfos UPS3 15-50/65...
Can anyone help, please? I'm looking for a heating system circulation pump for a domestic install, with 3 speeds, where the speed can be toggled...