On Thursday, June 25, 2015 at 11:15:27 AM UTC-4, Boris wrote:
trader_4 wrote in
:


big snip

Good to hear it's fixed! I think it was actually Uncle Monster
who suggested it could be an incorrect fan first. So, I guess what
you're saying is that it never worked right from the time the fan was
changed a long time ago. Someone not catching it then lead to
what happened now. I can see a tech showing up, diagnosing a
bad fan motor, then just looking at the one that's there and
ordering a generic replacement that has the same specs. I'm
not sure how many would pull up the parts list for the unit
and see what motor the manufacturer listed, etc.

I got mine going here too. $85 for the new motor. I replaced the
expensive and fancy ECM motor with a basic PSC, like what you have.
And I did what the tech did, I went by the specs on the old motor.

What are ECM and PSC? I've looked them up, but haven't seen the acronyms
described.

Electrically commutated motor - Essentially a DC motor driven by
electronics. It uses less electricity than a regular motor. But
it costs more and it has electronics that are susceptible to failing,
while a regular motor doesn't. In the case of my motor, it would have
been ~$350 for a replacement ECM. Actually I saw just one place that had
it for $230, but I'm not sure that price was real, I didn't try to order
it. PSC motor was $85. It would take a very long time to make up the
difference in elec savings, and given that the current one failed at under
4 years, you'd probably never recover it.

PSC - Permanent Split Capacitor, which is what you have.