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Old 07-25-2010, 12:17 PM   #1
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Trane 1HP motor speed controller


Hello,

Here is my problem:



See this URL for complete pics that I have posted:

http://67.199.112.102:89/ac/ac.html

Was told 'the motor and controller board were toasted' by an AC repair person.

Turns out that the controller board (led's, dip switch, etc) seems to be good. That is, all the passive components on it plus the small 24 v relay test good. In addition, the motor seems good after I pull the housing containing the speed control unit.

The speed control unit has one board that is burned and unsalvageable.

What is your recommendation?
Where can I find the best deal on just a motor control assembly for this unit?

The AC unit part no. and motor no. are shown in the photos if that helps. I hate to trash the entire thing. I need a source for discounted or surplus parts or perhaps other advice.

Thanks for the help!

DJ

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Old 07-25-2010, 09:09 PM   #2
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Trane 1HP motor speed controller


Try the online auctions. A quick check showed several trane blower modules on there.

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Old 07-25-2010, 10:32 PM   #3
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Trane 1HP motor speed controller


Thanks. I have been watching ebay but haven't seen a controller for the specific blower motor. Mine is 1 hp. there are a many for 3/4 and 1/2 hp.

I emailed one of the sellers who said he could get one for my motor but it would be $450 just for the controller that fits on the back of the motor. Maybe that is the best I will find, but hoping for a cheaper fix. The entire motor plus controller is around $550.

Thanks for your response.

DJ
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Old 07-26-2010, 12:16 AM   #4
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Trane 1HP motor speed controller


Might want to check resistance to ground on that motor before hooking a new module to it.
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Old 07-26-2010, 09:40 AM   #5
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Trane 1HP motor speed controller


Read this over the winter.
http://forum.doityourself.com/air-co...ble-motor.html

I have about the same motor its a 5SME39SL0744 motor control numberCP02 126S made by GE

Its a spare motor that has very little use, it came off a Amana furnace

It has a 5 and 16 pin connectors.

I don't know if it will work on a trane furnace.
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Old 07-26-2010, 11:35 AM   #6
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Trane 1HP motor speed controller


Thanks, Mike.

I have seen that thread. It refers to a burned thermistor. Unfortunately, that is not the problem with my board. The power semiconductors are burned. The thermistors are good. BTW, I probably won't be needing the thermistors which are still good.

If you can part with your motor with speed controller, or just the speed controller, let me know. Yes, that would be the same motor. See the images referenced in the original posting. It has the same connectors, I believe


You can email me at d e j s w a a t y a h o o

beenthere - thanks, checked the motor and there is open circuit between any of the power leads and ground.
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Old 07-26-2010, 12:18 PM   #7
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Trane 1HP motor speed controller


You can get to me through craigs list
sale-vruqg-1856751355@craigslist.org

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