Recent content by Amovida

Rereading what I wrote I see where what I said may not be clear. Let me give it another shot. When you remove the silver slotted end cap that is about the size of a quarter it exposes the end of the impeller. This impeller/pump is getting power but the motor power does not spin the impeller...

What I am wondering is why does the impeller spin...once you've put a bit of pressure on it via a screwdriver? Does anyone have any direct experience with this with Grundfos pumps? I imagine the phillips/screwdriver fitting on the end of the impeller is there so that if the impeller gets...

Good morning and thanks for the reply. The circ pump is a 1/25hp Grundfos pump. I don’t have the pump in front of me at the moment but I’m pretty sure the model number is UP 15-10F.

Hello and hope everyone is staying warm this winter! I have 2 Grundfos circ pumps (1 per zone) on an old Triangle Tube Prestige 110 boiler on a house we purchased relatively recently. One of the pumps appears to not be circulating as that zone is not warming. First I checked voltage to the...

Hello! I'm stumped as to what is happening here....I hope someone has the knowledge to shine some light on this problem! I have a zone valve that is roughly 15 years old that needed a replacement controller/head. The original was a Honeywell V8043E1079 normally closed with an end switch. My...