Grundfos UPM3 Auto Pump Settings

[pring_ing]

Had a replacement pump for the UFH installed recently. No installation manual left and I can’t for the life of me find one with this exact setup of LEDs.

There are two green LEDs with icons, then three orange which I think are for the pump speed 1/2/3. Anyone know what the two icons mean?

There’s the option of having it running with neither green LED illuminated which is what I’m doing at the moment. I’m wondering if the one with the curves should be selected though as it’s for UFH loops?

[CarbonV12V]

Easy enough to find an online manual.

https://www.weinmann-schanz.de/xs_db/xs_dokumente/...

[pring_ing]

I found that one too but it’s either for a different or older model. It refers to *one* green LED and four orange. Mine has *two* green LEDs and three orange. So far as I can see nothing there actually answers the question about what those icons mean?

[LocoBlade]

Here you go, same as mine. For a UFH manifold you want it on constant pressure so the green LED next to the yellows on, and then the three yellows are the speed, run it as slow as possible

[pring_ing]

Top man - that's perfect, thank you. I've been having problems with dropping flow rate, have changed the pump setting and hopefully that sorts it... 🤞

[LocoBlade]

No problem, I assume nothing else has changed since it worked OK, e.g. the actuators etc haven't been adjusted?

[Nat123456]

Good morning, I have similar problem. I have a thermal solar panels and suddenly this pumps settings has been changed. Pls tell which settings should I use asap. Thanks Nat.