They sent three new motors, rated at 3/4 HP rather than the original
1/2 HP.

They are physically more impressive. They have the same diameter as
the original motors, but they are 9 1/2 inches long rather than 7 1/2
inches long. They also have an external capacitor cover; the original
motors presumably have the capacitor within the motor housing, so the
actual motor part is not as long as it looks.

The new motors are rated at 12 A rather than 7A.

I opened the first box and pulled out the motor, and the shaft was
frozen so it wouldn't even turn. I know that some of you have good
results with these guys, but I have serious doubts about their QC.

The other two motors are installed and running, at least for the first
few days...

Thanks for all the ideas.

Bob




On Mon, 22 Jul 2013 16:46:12 -0400, Bob S wrote:

Well, there is some good news. The company is going to send
replacement motors at 3/4 HP rather than 1/2 HP. If it is a simple
overloading issue then maybe that will solve it.

Bob


On Wed, 10 Jul 2013 14:14:03 -0400, Bob S wrote:


I have a greenhouse with three fans from "American CoolAir".

The problem is that the motors keep failing. At the moment two are
running ridiculously slowly when powered on high speed. The other will
start and run on high speed, but bangs on startup at low speed; it is
as though the starter is kicking in and out.

The company keeps sending replacements, but I would rather have motors
that didn't need replacing. Is it possible to get drop-in replacement
motors that would actually work more-or-less forever?

The environment is not the greatest, with humid air blowing over them
in summer and the motors in cold air and being frozen in winter, but I
have had other appliances in similar conditions that never suffered a
motor failure.


The motor name labels say

Emerson

Model S63ZZJKW-7333

HP 1/2 RPM 1725/1140 SF 1.3

V 115 Hz 60 PH 1 Code L

A 7.2 SFA 9.5 AMB 40C

Made in Mexico



It looks just like the one in this pictu

http://www.federalindustrialsales.co...ph/m1-318.html

I have been through about 7 motors in the past couple years