Author Topic: GE Eterna Fridge  (Read 6092 times)

Offline Arizona

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Re: GE Eterna Fridge
« Reply #10 on: April 21, 2009, 05:23:53 PM »
OK it took a little longer to check everything. Here is where I am at. I hooked the 3N1 up to a cord and plugged it in direct. The compressor did not do anything. No noises or clicks. The compressor is getting power to the start and run pins from the 3N1 but is not starting the compressor. I checked the OHMs from the pins as you suggested and the lower right pin (I believe the run) is getting a reading when grounded. Based on your advice it appears the compressor went out on this unit. I am guessing a compressor is around $300 - $400 plus the cost of installation since I do not have the tools to charge the compressor. The unit is just over 5 years old and still in excellent cosmetic condition. How long can I expect a replacement compressor to last so I will know if it is worth repairing or if I should replace the unit. Who makes the most reliable unit these days?  Thank you for all of your advice and help along the way.

Offline JWWebster

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Re: GE Eterna Fridge
« Reply #11 on: April 21, 2009, 05:54:01 PM »
You might get a break from GE on that compressor a lot of them embracos made in south america had a defect. Contact GE and give em hell. They might send someone out.
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Offline Icehouse

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Re: GE Eterna Fridge
« Reply #12 on: May 02, 2009, 10:08:49 PM »
Two chances of that happening. Slim and none.
NATE, NCCER, PHCC,HVAC Certified Instructor
Member RSES, US Army Refrigeration Specialist(Retired), Former Refrigeration Teacher NYC Board of Ed.
a tragedy has happen to me : http://web.me.com/zenzoidman/Bobice/

Offline Icehouse

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Re: GE Eterna Fridge
« Reply #13 on: May 03, 2009, 07:48:01 AM »
If you are using a 3n1 relay and you have power to the relay and the compressor is not running you have a bad compressor.
Take a VOM set to OHMs and read the 3 compressor pins to ground( a refrigerat line will do).If you get a reading the compressor is bad. If not,
Read each pin to the other pin, C to S, C to R, S to R.
C to S and C to R should total the S to R reading.
If that happens you have other issues.
Do these steps and report back.
If I am not online someone else will give you the next step.
In case anyone is interested :
FIRST:
Single phase compressor motors have a "Start Winding" and a "Run Winding" with a "Common" connection between them. Therefore the total resistance is the sum of both windings.

SECOND:
Shorted motor windings:occur when the insulation on the windings become defective and allows a shorted condition (two wires to touch), allowing a bypass of the winding. Depending on how bad of a short it is possible for the compressor to operate, but will draw excessive amps.
There should be no reading from any terminal to the compressor motor case using an ohmmeter.

THIRD:
Grounded motor windings occur when the insulation on the winding is broken down and becomes shorted to the compressor motor case.
This can be verified with an ohmmeter by touching one lead to any terminal to the compressor motor case (it is recommended to scrape away paint).

FOURTH:
A compressor motor may have a weakened winding that will short to ground when called to run. It is therefore recommended that a "Hi-Pot" tester be used in conjunction with an ohmmeter to check for insulation failure.
NATE, NCCER, PHCC,HVAC Certified Instructor
Member RSES, US Army Refrigeration Specialist(Retired), Former Refrigeration Teacher NYC Board of Ed.
a tragedy has happen to me : http://web.me.com/zenzoidman/Bobice/

Offline Arizona

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Re: GE Eterna Fridge
« Reply #14 on: May 06, 2009, 04:56:27 PM »
Thank you for the information. Did you have a chance to read from the beginning? I have power to the start and run pins 120 but the compressor does not start. I replaced the main board and the defrost thermostat inside the freezer compartment. Could a defective (new)defrost thermostat cause the unit not to start?
   I will check #2 in your post for a reading from the terminal to the compressor.

Offline jumptrout51

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Re: GE Eterna Fridge
« Reply #15 on: May 06, 2009, 07:08:18 PM »
Read your compressor. If it reads correctly and a 3n1 will not start and run the compressor. You have a bad compressor.
If you have power to the compressor the defrost timer and the thermostat are doing their job.
« Last Edit: May 06, 2009, 07:10:50 PM by jumptrout51 »
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