Condenser Fan takes regular breaks - http://www.hvacmechanic.com/ Forums


Original message

KDogg

74.244.208.195

"Condenser Fan takes regular breaks" , posted Wed 6 Aug 03:05:user profileedit/delete messagepost reply


I have an old Goodman PG042100-1AB



The condenser fan motor stops turning after about 10 minutes. If I pull the fuse, wait 10 minutes , and then restart the system, It’ll run for another 10 minutes or so.
What should I do?
The condenser fan motor is an Emerson KA55HXEEC-713 (1/4 H.P. 1-Speed 208/230 Volt 1075 RPM) Can I replace it with any motor that meets those specs? Any suggestions?
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[this message was edited by KDogg on Wed 6 Aug 03:09]

 

Replies:

acefurnacefxr



76.214.172.156

"Re(1):Condenser Fan takes regular breaks" , posted Wed 6 Aug 07:53user profileedit/delete messagepost reply


change the fan motor and dual cap

HVAC REPAIR IS NOT A DIY WEEKEND PRODJECT

I have been performing HVAC repairs for 23 years

http://www.hillaryclinton.com

 

 

kdogg

74.244.208.195

"Re(2):Condenser Fan takes regular breaks" , posted Wed 6 Aug 08:48user profileedit/delete messagepost reply


Thanks 4 the reply. I am planning to replace both. I was just unsure about finding an exact replacement. I went to the Grainger website and I think that I found the replacement motor and cap I need.

 

 

hvac101

76.112.1.227

"Re(3):Condenser Fan takes regular breaks" , posted Wed 6 Aug 21:08user profileedit/delete messagepost reply


well..2 wires you hook up to the new run capacitor and 2 wires you hook up to the contactor. the dual capacitor is just being used for the compressor now.

 

 

kdogg

74.244.208.195

"Re(3):Condenser Fan takes regular breaks" , posted Wed 6 Aug 20:18user profileedit/delete messagepost reply


So I have installed the new fan but was presented with a new problem. I now have 4 wires coming from the motor instead of 3. My recommended capacitor has 2 terminals insead of 3. i searched and saw that someone else was having a similar problem but they never got an answer.
Need wiring directions to the following mess. 3 (old motor) verus 4 (new motor) wires and different colors to boot.

I have a Goodman Mfg. Compressor Model CK30 1B that had a GE P870S motor that went out. Old Capacitor (GE #97F9848) is a three plug version.

GE Motor Wiring: (Blk, Brn, and a Purple wire)
Old Capacitor: (#1 left Front, #2 right front, #3 Rear Center)...if you need furhter CAP specs let me know.

Old wire set-up with old motor:
Motor: Black wire------->Contactor T 1.
Motor: Solid Brown ---------> #3 rear Center Capacitor terminal.
Motor Purple ------------> #2 Right Front and big red lead goes from same post to T2.

Capacitor Wiring info:
#1 left Front: Yellow lead, from compressor.
#2 right front: Purple from motor and big red lead goes from same post to contractor T2.
#3 Rear Center: Solid brown motor wire.


Grangers suggested an AO Smith Model F48K92A01 for replacement and a Dayton (two prong) 2GE76 Capacitor. Here is the wiring Dia on the replacement motor.

Motor wiring:
Black wire: to "Line"
Yellow wire: to "Line"
Solid Brown Wire: to one side of Cap
Brown Wire with White stripe. Other side of Cap

Any help is appreciated.




I have the exact same problem. Any ideas?

 

 

Houston204



98.196.66.53

"Re(4):Condenser Fan takes regular breaks" , posted Wed 6 Aug 22:22:user profileedit/delete messagepost reply


You can get a new dual cap to match the compressor microfarad, the new motor microfarad value and the compressor voltage or use the 4th diagram.



"Tip of the Day" Remember to remove power first.

[this message was edited by Houston204 on Wed 6 Aug 22:23]

 

 

kdogg

74.244.208.195

"Re(5):Condenser Fan takes regular breaks" , posted Thu 7 Aug 00:17user profileedit/delete messagepost reply


Thanks,

I had your 4th diagram in my head before I saw this post but was afraid to use it. I ended up installing the new motor with the old capacitor. I crossed my fingers and held my breath. It worked!! I will buy the new dual cap tomorrow. I am just so happy that we have cool air. It gets hot here in SC.
My last question on the issue. Is there any advantage in using seperate caps for the motor and compressor over a dual cap?

 

 

Houston204



98.196.66.53

"Re(6):Condenser Fan takes regular breaks" , posted Thu 7 Aug 00:32:user profileedit/delete messagepost reply


Separate caps swell up less often. (though this wouldn't help in your case) They should be secured with plumbers strap and not just left in the box they came in though.

Did you cap the brown wire with a stripe?
Is the mfd rating the same on both caps?

I suspect that the problem was only the dual cap to begin with.

Be sure to match the mfd of the existing compressor with the mfd of the new condenser fan motor.
So if you have a 35/5/440 dual cap but your new motor requires a 7.5mfd 370 volt capacitor, get the 35mfd/7.5mfd/440volt dual cap.

A 40mfd / 5mfd 370VAC example...


"Tip of the Day" Remember to remove power first.

[this message was edited by Houston204 on Thu 7 Aug 01:34]