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.

our recirculator went out after 17 years in our house and - man you don't realize how nice it is to have instant hot water until - you don't have it and your house is a long ranch. My husband installed it and it worked right away. we tried the digital time electronics it has - but I guess I use water to randomly - I had to keep waiting for the hot water...so we just changed it to on all the time. it works great!

Love the adaptive recirculation. It recognizes our water use patterns and has the water hot at the faucet when we need it most. Saves about 5 gallons of water daily not having to wait for the water to get hot to our shower. Very small and takes up little space. Very quiet and uses less electricity than most pumps.

The pump works perfectly and much better than the outdated, timer controlled, Grundfos it replaced. The only negative are the directions. They are cryptic at best. Just pictures with confusing symbols that might mean something in Germany but are difficult to decipher here in the US. I finally figured it out by watching some YouTube videos I found online.

Product arrived as described. Installation was easy. This version is a newer version of the model I had, but on the Grundfos website, it stated it was a direct replacement which is accurate.

Great quality.

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.

Easy to install and works very well very quite also.