Back fan stop working
933672
I have some difficulty the fan of the back didn't work
4387253
The fan was great. Had different modes and settings and a cool remote. But the fan stopped working after three months of purchase. I used it every night in my bedroom and one night it just stopped. I heard the motor buzzing bur the blades won't turn.
Sucks to have an unreliable build from a good product
3729447
Sadly,, this fan only lasted 2 months.  Stopped working, all of a sudden.  Checked the the fuse...not the problem.
761510
This was installed professionally by an electrician.  We have checked the outlet with a voltmeter which currently has electricity. This fan just stopped working.  It was used rarely and it still failed after less than 7 months installed! Honestly, my parents still have working fans they bought 20 years ago.  Why can't we order products today that last more than a year?
820508
Fan suddenly slows down or stops completely with no warning. In addition, its motor gets too hot after only 1 hour of working!
1811286
Fan worked great for a couple of weeks. Then one day it stopped.
3691889
We really liked this window fan at first, because it is quiet and moves a lot of air. But now, just a few months after purchase only 1 fan works. I am guessing that it is a faulty switch because there was no irregular sounds leading up to the failure. I will attempt to fix the switch myself unless the warranty covers it. Let's hope so. Maybe digital controls are the way to go.
3620841
It was working great until a couple months in and it stopped working. I am trying to get a return/refund. I was very excited about my setup and adding this to it until my computer started up one day and was running 100C and the heatsink fan was as loud as a car trying to cool down.
1810074
The fans worked fine for a few months then they suddenly stopped working. I would not recommend this product if you are a heavy user and are looking for a long-lasting product.
4764871
Glad I did some research on YouTube ......blower motor resistor?.... Never heard of one, I was thinking the speed control selector on the dash.....before the repair my fan had 2 speeds, fast and off. This fixed the problem. Depending on your vehicle, this may take some time and effort to replace it. My Toyota Tacoma has 250,000,....I also ended up cleaning out the blower box which contained years of leaves, etc...which also contributed to the resistor failure....bottom line if your fan has only one speed or none and you have a lot of miles on your vehicle ....this will probably fix it.
3242004
My fan worked for approximately three weeks. Then it stopped working. The fan housing was extremely hot. I called and they sent me a new one. I am returning the burnt out one. It is a great idea, and a great fan. Will have to see if this one stops working also.
3237976
I bought it works great over time the cooling fan started going nuts making all kinds of funny sounds and stopping working at times if the fans not working it will shut down and not start up again until the fan starts working again. great price . Eazy to install a hard drive .The only problem I have with it is the cooling fan .If I can find a fan to replace the one in it would even be great the cooling fan in it needs an upgrade so it will last longer . I would give 5 stars if the fan is replaced with a better one. if someone now how's to  bypass the cooling fan let me know I still use it when the fan works or what fan I can replace the old one with
2203768
on my 2002 gmc sierra my fan speeds starting to go out one at a time. replaced the resistor and fan works again
2018519
This fan was a season item and used occasionally.  One day it just stopped working and I was very disappointed since I have had other window fans that worked for years. Then when I called AMAZON they subtracted over $18.00  since it was few days past the return date. However the fan stopped working prior to date called. I feel I should have received a full refund. Thank you
1954408
Fixed my problem and I saved a ton of money doing it myself. If your fan isn't blowing on some speeds or at all, it's likely this part or the fan motor itself (though probably the resistor: try this first). Installation was <30 minutes with simple hand tools.
3854931
Will not last, not good quality  I gave this fan 5 stars, awesome looks and nice and quiet. It stopped working a month ago and after someone tried to repair it worked for one day. I cannot recently recommend a fan that works for 2 years. I was willing to spend a little bit more to avoid exactly this. I am disappointed.
2657177
The fan worked just fine for less then a month and one fan has completely stopped while the second fan makes really strange noises and stops working after a few minutes.