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GE Monogram ZIS480NMA - Take 2!  Rate Topic 
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 Posted: Thu Sep 11th, 2008 01:10 am
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delmarguy
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Sorry about my previous problem description - it was not correct.

 

The actual problem is everything is too cold. We have the freezer set to -3, and the temp gauge shows -11, and the fridge seems to run all the time. We are also getting some ice on the fridge side -

 

Thanks!

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 Posted: Sat Sep 13th, 2008 12:17 am
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Moostafa
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Hello, my frigid friend. Have you checked the resistance values of the thermistor in the fresh food compartment? Perhaps the attached document, provided by our flatulent host, Samurai Appliance Repair Man, will assist you in this endeavor. May Allah make your meter needle steady!

Attachment: Pages from 31-9091Mngrm SxS Electrnc 2002 thermistor values.pdf (Downloaded 12 times)



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 Posted: Sat Sep 13th, 2008 12:23 am
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Samurai Appliance Repair Man
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For the record, my dear friend, Moostafa, I'm not nearly as flatulent as I was back in my CIA days when we worked together with the Mujahideen fighting the Soviet infid.., er, I mean,... Soviets. Mrs. Samurai doesn't tolerate it like the hardy, yet nubile Afghani women did. :fart:



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 Posted: Sat Sep 13th, 2008 09:02 am
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ROBBYRIG
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Through the freedom of information act, I discovered a picture of you two preparing for a  clandestine mission in the desert.

Attachment: troops.jpg (Downloaded 48 times)

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 Posted: Sat Sep 13th, 2008 10:48 am
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Samurai Appliance Repair Man
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Wow! Great find, RR! Look how young and beautiful I was back then. Alas, the bloom is off the rose. Also, you can see that my former comrade-in-arms, Moostafa, has always struggled with an unlucky visage.



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 Posted: Fri Sep 19th, 2008 05:08 pm
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delmarguy
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Excellent! Any insightful tips on getting to the thermistor so I can test it?

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 Posted: Fri Sep 19th, 2008 05:28 pm
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Samurai Appliance Repair Man
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The attached page shows you where they are. Everything comes outta da fridge. Remove the back inside wall and there you be, buddy-ree.

Attachment: Pages from 31-9091Mngrm SxS Electrnc 2002 FF thermistor locations.pdf (Downloaded 4 times)



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 Posted: Fri Sep 19th, 2008 05:36 pm
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RegUS_PatOff
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from the 30-9097 Service Manual: "The actual temperature display is based on the temperature that the main control board sees from the thermistor."


If it thinks it's -11F and it's still running... Controller Board


"All thermistors can be checked using Diagnostic Mode."



edit: Control Board & Diagnostic Mode:

Attachment: Pages 25 & 52 from 31-9091Mngrm SxS Electrnc 2002.pdf (Downloaded 3 times)

Last edited on Fri Sep 19th, 2008 06:59 pm by RegUS_PatOff



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 Posted: Fri Sep 19th, 2008 06:15 pm
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delmarguy
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hmm.. I'm agreeing with your conclusion - the freezer temp display does say -11, and the freezer is not shutting off.

 

Soooo.... do I attempt the controller board replacement? Where does one get such a part?

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 Posted: Fri Sep 19th, 2008 06:56 pm
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RegUS_PatOff
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click on picture



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 Posted: Fri Sep 19th, 2008 07:21 pm
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delmarguy
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Thanks for the part tip - I did run the diagnostic from the previous post, everything passed except for the communication check with the dispenser, but this one does not have a dispenser, so that's ok, right?

Also - I heard noises on the dampers test, sounded familiar. I did not hear anything on the duct door test.

On the HMI Temperature control test, all the LEDs lit up, but I could not figure out how to exit the test (the display was blank) - so I cycled power on the fridge.

I did notice some ice and water on the upper left corner of the fresh food side, I think that's where the dampers are.

I'm pretty sure I could replace the controller board - do you think it's definitely the problem (sounds like it to me)

 

Basically the freezer is too cold - but if the duct/dampers were sticking or frozen, might it caue the same symptom. Do you have a spec on how to expose the dampers and ducts?

 

Whee - lots of stuff - thanks for the help all you fridge guys and gals out there!

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 Posted: Fri Sep 19th, 2008 08:49 pm
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delmarguy
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Is there a way I can verify the dampers and ducts are working? I'm thinking if they were frozen, I might have this problem, as the freezer cannot make the fresh side cold enough.

If I could see thse dampers and ducts move, that would work, or is there another esy? I do hear things for the dampers when I run the diagnostic, I'd just like to see them. Also, how is the duct different from the dampers - I dont hear anything during the duct test.

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 Posted: Sat Sep 20th, 2008 12:28 am
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RegUS_PatOff
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delmarguy wrote: ...The actual problem is everything is too cold. We have the freezer set to -3, and the temp gauge shows -11, and the fridge seems to run all the time. We are also getting some ice on the fridge side...

delmarguy wrote:
...as the freezer cannot make the fresh side cold enough...
so.... OK the Freezer is too cold... 

How cold is the Fridge ?



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 Posted: Sat Sep 20th, 2008 01:04 am
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delmarguy
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The fridge is 49 right now, the freezer -2

 

Thanks!

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