Supco SM0740 120V Condenser Fan Motor Replaces Sub-Zero 4200470

Perfect, easy install

This review is for the "Refrigerator Condensor Fan Motor for Sub Zero 4200740" sold by "partshouse". (That's the way they spelled "Condenser".)Our Sub-Zero is a model 690. This fan motor works great for it.It appears that Sub-Zero uses the same condenser fan motor for many different models, hence the proliferation of parts that come with this replacement motor. My motor kit included all the pictured items. It did not include a new fan blade.Installation was almost a snap. It was a very quick process to select the correct connector and insert the wires. Then the only issue was to remove the old fan motor bracket with the fan motor and fan attached, swap the motor, and reinstall. It sounds simple enough, but that doesn't mean that it's easy. (Simple and easy are different. e.g. "Buy low and sell high" is simple but not easy.)Getting the rearmost screw removed from the fan mounting bracket was probably the most difficult task, but if you are handy and have a good assortment of tools you should be able to do it. It should go without saying that you should have the refrigerator turned off while you are working in the mechanical compartment. I unplugged mine as well.When all was said and done, I am VERY happy with this replacement motor kit. I really can't say whether the fan is louder with the new motor or not, mostly because I don't think my original one was working all the time. Do you suppose those reviewers who complain about the noise are upset because their old fan was off and now they have one that is turning?We had two symptoms indicating that this fan motor might have been failing, but I didn't recognize that these symptoms indicated the fan. The first was that the center wall between the refrigerator section and the freezer section on our side-by-side was hot. Allison Cummins' review from 18 February 2013 mentions that this is an indication that the condenser fan is failing.The other symptom was that we were getting "Vacuum Condenser" messages way too often, sometimes within days of vacuuming the condenser. If I had thought about that for a while, I would have realized that if the refrigerant doesn't cool sufficiently as it passes through the condenser, the system assumes that the condenser is dirty and turns on the "Vacuum condenser" message. This same condition can occur if the condenser fan has failed or is intermittent, even with a clean condenser.So, if you see a "Vacuum Condenser" message more than you should, and/or if the center wall between the refrigerator and freezer is hot, you should be checking for a failed condenser fan.A hint: While we waited for this motor to arrive our refrigerator was getting quite warm. I bought a small $12 "personal fan" at the local hardware store and set it up to blow onto the condenser. I also left the front cover off the mechanical compartment. This kept the refrigerator working and we didn't lose any food except for the ice cream, which had already gotten too soft. In fact, after I installed the little "personal fan" the fridge worked better than it had in months.One last tip: I took a precaution to ensure that this fan motor never fails again. I bought another one as a spare. I'll store it right inside the mechanical compartment above the refrigerator. The currently installed motor should work forever as long as the fridge knows there's a replacement ready.This is a great replacement part for a very reasonable price. I'm sure that had I bought one from an authorized Sub-Zero parts distributor it would have cost three or four times what I paid for this one. Don't even ask what it would cost to have a service technician come out and change it.HIGHLY RECOMMENDED!- Loren

This is the second one of these motors I've purchased. the first one lasted a couple years. The previous one lasted almost 20 years. The internal design is cheap, but it works. When I first installed it worked fine, but within a few days running it became noisy. I was busy & didn't have time to send it back & buy a different brand but before I got around to returning it, it quieted down. This shouldn't happen in a quality motor, so expect it will die sooner rather than later.

I purchased this motor to replace a defective OEM motor which lasted 20 years in my 1996 model 501F freezer. The motor came in 2 days and fit perfectly on the little A frame mount that the OEM motor was mounted on. I had the most trouble getting the A frame mount out of the Compressor tray. I had to remove the bottom front plate and get a short Phillips screwdriver under the mount to unscrew the screws. One of the screws stripped out so I had to use a Dremel tool to grind off the head and remove the mount. I replaced the 4 mounting screws with allen head screws which will come out much easier. The mounting hardware provided with the motor included a new rubber isolator which goes between the fan and motor mount, 4 new mounting screws, 2 wire nuts which were too big for the #18 wire on the motor so I used 2 blue wire nuts which fit perfectly. There is some extra hardware for different type of mounts which I did not use.In order to slide the motor assembly out of the tray I had to loosen and remove one screw on the compressor run capacitor which was in the way, otherwise it came out OK. The motor wires came with pins to plug into a molex connector (supplied), but my freezer did not have a molex connector just 1/4" slide-on terminals so I cut the wire and used the blue wire nuts to join the wires.Overall I am very happy with the installation and parts, but we'll wait a few years and see if the Chinese motor can hold up.My motor now runs at 1550 RPM and is slightly noisier, but not a problem in the kitchen.

It's not a genuine Sub-Zero part. The online parts houses say that Sub-Zero policy won't let them sell parts to customers. Only authorized repair shops can get the parts. I assume that means they won't sell you the part but will install this fan for you for $350 or so. My authorized Sub-Zero repair shop has an automatic $120 trip charge for any visit. Incredibly anti-consumer policy and an argument against the free market.It works. It's not an exact replacement. The spindle where the fan attached was different than the OEM part for my Sub-Zero Model 632. But they included a rubber isolater that fit in their included bag of misc parts. I received everything in the picture.It is louder but I'm not surprised because of warnings from other reviewers. It's louder because it's spinning faster. The small increase in loudness doesn't bother me. Especially since I saved $300 and can tell Sub-Zero to f!&! o!@ I assume the increased fan speed is better?If you're at all reasonably handy, it's easy to install. I needed a stubby screwdriver which I have to reach the far mounting screw which was the only pain in the process. You have to insert the correct wires into the appropriate connector. You just make it look exactly like the original.Definitely worth it.