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-   -   swapping an ecm motor for a psc motor (http://www.diychatroom.com/f17/swapping-ecm-motor-psc-motor-162986/)

hazeleye65 11-11-2012 04:50 PM

swapping an ecm motor for a psc motor
 
Hi,
I have a tempstar PAM330K00A1 and the blower motor has gone bad twice in
two years. The unit is no longer in warranty and the x13 motor in it is a 469.00
part. That is too expensive to replace every two years. My question is can
i replace the x13 blower motor model # 5SME39hxL163 with a psc motor
which is far cheaper. I'm not sure if the circuit board is compatible. The
model of the circuit board is:Tempstar circuit board

What would I have to do in order for this to happen?
Thanks

Doc Holliday 11-11-2012 05:02 PM

You will more than likely pay the difference in cost of operating a pcm every two years in your electrical bill compared to buying another x13, they are that much more efficient.

How long did the original motor last? I've installed dozens of furnaces with them in and they're still running.

hvac instructor 11-11-2012 05:08 PM

is the motor over amping? if duct not getting the correct static pressure
the motor will run all out to try to keep static. you cant run open duct with ECM motors. is it the motor or the module that goes out? ECM motors
will sense how much air is moving by the resistance of static pressure and adjust when needed.

hvac instructor 11-11-2012 05:09 PM

is the motor over amping? if duct not getting the correct static pressure
the motor will run all out to try to keep static. you cant run open duct with ECM motors. is it the motor or the module that goes out? ECM motors
will sense how much air is moving by the resistance of static pressure and adjust when needed.

Doc Holliday 11-11-2012 05:17 PM

It is not an ecm motor.

Doc Holliday 11-11-2012 05:30 PM

And only the original X13 made by Regal-Beloit (GE) is an X13. Many others utilize the same brushless technology similar in fashion to that of a true 2.3 ecm but only the GE brand is a true X13.

Called the X13 to meet the minimum mandated seer rating of, yup, 13.

hvac instructor 11-11-2012 05:39 PM

opps my bad, read it wrong.
i would put the x13 in again. might have just got a dud
the last time around. if it goes again then need to check everything.
i would still due an amp check.
did it burn out or bushings go bad?

hazeleye65 11-11-2012 10:23 PM

Quote:

Originally Posted by hvac instructor (Post 1049817)
is the motor over amping? if duct not getting the correct static pressure
the motor will run all out to try to keep static. you cant run open duct with ECM motors. is it the motor or the module that goes out? ECM motors
will sense how much air is moving by the resistance of static pressure and adjust when needed.


How do I know if the motor is over amping? and what is open duct? I live in a
mobil home with duct work running under neath the outside unit is a combo air handler and compressor that was installed in 2006-2007.

hazeleye65 11-11-2012 10:26 PM

Quote:

Originally Posted by Doc Holliday (Post 1049813)
You will more than likely pay the difference in cost of operating a pcm every two years in your electrical bill compared to buying another x13, they are that much more efficient.

How long did the original motor last? I've installed dozens of furnaces with them in and they're still running.


The original Unit was installed in 2006-2007 and the original motor was replaced in 2010. My sister just had a new unit installed 2 yrs ago and her
ecm motor went out too. I've been reading where these x13 motors are Sh*t.
and they are having alot of problems. Some say moisture build up fries the motor. Being in Florida we have alot of moisture.

Marty S. 11-12-2012 05:54 AM

The mobile home duct is the issue. Those motors want a maximum static pressure of .6" and a mobile home static runs 1" or slightly higher. Some furnace boards will work with a psc motor and some will not, don't know about yours.

hazeleye65 11-12-2012 08:30 AM

Quote:

Originally Posted by Marty S. (Post 1050135)
The mobile home duct is the issue. Those motors want a maximum static pressure of .6" and a mobile home static runs 1" or slightly higher. Some furnace boards will work with a psc motor and some will not, don't know about yours.

So that means that any home owner replacing their ac unit would have to replace the duct work as well or face blower motor failure. Because all of
the new units are equipped with ecm motors. Also the size of the duct work is the same size as a standard home. I'm at a loss understanding the static pressure.

diyorpay 11-12-2012 09:21 AM

Read this older thread and maybe a solution:

variable speed trane blower motor
http://www.diychatroom.com/images/st...er_offline.gif
It might be a simple board component that can be replaced with a soldering iron. You can check it for the telltale burned/melted disk. http://www.diychatroom.com/images/buttons/quote.gif

hazeleye65 11-12-2012 02:05 PM

Quote:

Originally Posted by diyorpay (Post 1050254)
Read this older thread and maybe a solution:

variable speed trane blower motor
http://www.diychatroom.com/images/st...er_offline.gif
It might be a simple board component that can be replaced with a soldering iron. You can check it for the telltale burned/melted disk. http://www.diychatroom.com/images/buttons/quote.gif

I would love nothing better than to replace a component on the board however the module circuit board is encased in rubber. If any one has a way to get the circuit board out, I would be willing to try that route.http://www.ebay.com/itm/NEW-GENTEQ-3...item2a242c4dbe


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