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Grundfos ups3 making noise
- Thread starter noddy997
- Start date
I'm sure that's right. I'm just a DIYer, but I used to swear by Grundfos, now having doubts. The latest ones are very efficient but less reliable. I believe, from comments on here, that need for high efficiency is driven by some German practice, where the pump runs 24/7. Supposedly so heat can be moved from one room to another, a half-baked idea.
Carrying on, hit send by mistake!
Who wouldn't prefer to spend another £5 a year on electric in exchange for better reliability, specially as most of the energy goes into the water anyway.
I don't know whether UPS2 (or even UPS15-50) are still available from Grundfos.
I don't rate the ups3 at all nothing but trouble ( fit dab evosta 3 cheaper and way less problems)
We are Grant registered installer's during lockdown Grant changed from Wilo pumps to Grundfos we have never changed so many pumps!
Grant now gone back to Wilo.
Today meet grundfos rep had a good moan mentioned they do seem to stick easily if stood for some time. His reply
Don't just free them by pushing down screw and turning when it's pushed down hit screwdriver with a hammer to jar impeller!
Won't be swapping to Grundfos any time soon.
Which is the wilo equivalent? And is the physical size same?
There are the older looking type grundfos but they're about £300-600
This might interest you
Grundfos UPS2 15-50/60 Domestic Heating Circulator 240V. A fraction of the price others are quoting. I bought mine from Anchor Pumps 5-6 years ago, about £95.
Refurbished, but I'd rather have that than a new UPS3
The pump itself is quiet but it appears it might be vibration / humming noise through pipework
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I didn't get a pic, but there's a vent slightly higher which when opened only water came out. The cistern had 3/4 of tank of water in it and ballcock was functioning.
Why are the older type pumps more expensive now? And sold as "secondary" pumps?
Grundfos UPS 15-50N Traditional Secondary Hot Water Circulator 230V - Screwfix
Order online at Screwfix.com. For secondary hot water distribution to circulate water in the system to ensure hot water is available on demand.1½" BSP connection. IP44 rated. Quiet operation. FREE next day delivery available, free collection in 1 minute.
Secondary pumps are used for recirculating the hot water in/from the HW cylinder around the system to ensure you get instant hot water at your taps/shower as soon as you demand hot water, because this water is highly oxygenated then the pump material is either bronze or stainless steel, more expensive.
Before rushing off to buy yet another circ pump you might consider spending £15/£20 on a energy monitor (see below), you can just remove the pump cable from its terminal box, stick a 3 pin plug on the end of this cable, get a extension lead, plug the energy monitor into the extension lead and plug the pump cable into the energy monitor, you can then switch on the pump shortly before firing up the boiler and then read off the power in watts from which the flow rates/head and system and pump condition can be easily calulated, it might seem a bit complicated but really isnt and may save you hundreds.
Before rushing off to buy yet another circ pump you might consider spending £15/£20 on a energy monitor (see below), you can just remove the pump cable from its terminal box, stick a 3 pin plug on the end of this cable, get a extension lead, plug the energy monitor into the extension lead and plug the pump cable into the energy monitor, you can then switch on the pump shortly before firing up the boiler and then read off the power in watts from which the flow rates/head and system and pump condition can be easily calulated, it might seem a bit complicated but really isnt and may save you hundreds.
Attachments
But can they be used as a central heating pump?
I'm just concerned about the noise and not energy efficency.
There is now a buzzing noise that can be heard as well as the vibration noise.
I've had this previously and upon changing the pump it goes away.
The pump is fitted correctly. I got confused with the "always fit the pump with a horizontal motor shaft"
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Since beginning of Dec 2023.
Less than a year maybe for the prior one.
If I was to undo the 4 screws of the pump and rotate it, that would just rotate the control / electrical outlet rather than the pump shaft?
I may get the below. It has 5 year warranty. The 6m head one has 1 year warranty.
Wilo Yonos PICO 25/1-5-130 Glandless Circulating Pump 230V - Screwfix
Order online at Screwfix.com. Easy installation and set-up, accessible through green button technology, that represents the highest usability. High energy performance is achieved through the proven EC motor technology and precise setting by 0.1m. Installation and maintenance are easy through...
Rotating the pump head will achieve nothing.
You should be able to return that and get a refund?
I couldn't advise buying the 5M Wilo as it would be on the weak side even though your original pump was a 5M, the 6M should be OK but remember if you have a system problem the Wilo or any other make won't cure it.
You should be able to return that and get a refund?
I couldn't advise buying the 5M Wilo as it would be on the weak side even though your original pump was a 5M, the 6M should be OK but remember if you have a system problem the Wilo or any other make won't cure it.
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