Grundfos 98420224 UP 10-16 A PM BU/LC Comfort PM AutoAdapt Recirculation Pump

Needed to replace a 9 year old Grundfos due to the auto adapt function not working. Prices varied quite a bit between Amazon, Home Depot and various supply houses. That got me wondering if all were the same pump, so I started a text with Grundfos customer service. They were closed over the holidays, so it took me two weeks to finally connect with a rep. She was very helpful in telling me the 98420224 UP 10-16 A PM BU/LC pumps were all the same regardless who sold them. The replacement arrived within a week. I was very fortunate in that the plumber who plumbed my new home installed 1/2" shut off valves on each side of the pump, so isolating the valve was easy. I read the directions that came with the pump several times. The directions appear to have been updated in early 2024, so they were much improved over other reviews. With a large crescent and channel lock wrenches, the old pump came out easily. The new pump was exactly the same size so it went as easily. I was cautioned by the customer service rep to be very careful with the auto adapt cable and followed the directions verbatim. After flushing in both directions to ensure the pump had water, it plugs in and works well. An easy task.

was easy to install works great so far.

Product was an excellent shape when it came and the driver delivered all the way to within inches of the door. Usually, they do the minimum and leave it by the driveway, but this driver came all the way and delivered it as I had. Thank you thank youThe product is excellent quality. The price was on the lower end of the average cost. So I appreciate that.

Overall easy install. The pump is ultra quiet, energy efficient but on the AUTO setting does not seem to really sync with day to day usage. We waited for the two week self-programming to complete, but its been well over a month now. We find that until you use the hot water in the mornings/mid-day the pump is not running. Once there is usage it seems to kick on to fill the lines and return with hot water. Considering setting to TEMP setting in lieu of AUTO. If I were to buy again more likely to get programmable version (for less money)

I didn’t have to resolder anything. Just unscrewed the two flange unions and slid the new unit in. The only issue was the directions do not give any information on the temp sensor setting or what the AUTO setting actually does.

This product was used in my garage as a rotating pump for my water heater. The installation cost me $250.00 not cheap. But was done professionally. It's working very well. Very quiet, no sound at all. It's a replacement for a manual one of the same brand which worked for about 5 years. The hot water in my taps are quick and I am happy with the product.

Purchased Grundfos 98420224 UP 10-16 A PM BU/LC Comfort PM AutoAdapt Recirculation Pump to replace old Grundfos pump. Install was easy and pump turns on but does not pump water. Seller/Amazon support is a loop of useless information. Would love to contact the seller for replacement and/or tech advise.

So far so good. Thank you