ᐅ Issues with Cistern Pump

Created on: 8 May 2016 21:20
D
DerFu
Hello everyone!

I have the following problem: We have a cistern with an external pump located in the heating cellar, and this pump is acting up. Sometimes it works, sometimes it doesn’t.
When it runs, it runs perfectly, with enough pressure and everything fine. But when you try to start it the next day, it makes NO sound at all. Turning the power off and on again doesn’t help, and the cistern is definitely not empty.

I’m somewhat handy, as people say, but so far I have no experience with pump technology or anything similar, since we only recently bought the house. Therefore, I would appreciate any tips or ideas for troubleshooting that can be offered through “remote diagnosis,” which might save me from having to replace the pump.

It is a:

Grundfos Hydrojet 4651 BAAE with a
Condor MDR21-EA automatic switch
Manufactured in 1995

If more information is needed, I will try to respond as quickly as possible :-)
Many thanks in advance!
Best regards, Sebastian
f-pNo10 May 2016 13:22
@DerFu @sebknop
Why did you register twice on the same day? And why do you ask questions with one username and then reply later with the other? It’s a bit confusing.
S
sebknop
10 May 2016 13:26
Sorry, having trouble installing Tapatalk...
S
sebknop
11 May 2016 08:27
Hello, the switch is purely a mechanical issue. I opened it and measured everything, all is fine.
The pump then worked as well. I will leave the switch open and test it every day. If it acts up again, I'll have to measure it again. We’ll see...