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ApplianceGuru.com: The Samurai Appliance Repair Forums > Do-It-Yourself Appliance Repair Help > The Kitchen Appliance Repair Forum > Trouble Shooting Thermister |
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| Trouble Shooting Thermister | Rate Topic |
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| Posted: Tue Sep 19th, 2006 07:53 pm |
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1st Post |
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Waneewek Scholar of Advanced Appliantological Studies
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Is there (1) degree/ohm chart somewhere for testing thermisters, or do all of the differant manufacturers use differant thermisters?
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| Posted: Tue Sep 19th, 2006 10:24 pm |
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2nd Post |
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hvacdrd Fellow, Academy of Sublime Masters of Appliantology 
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Thermistors come in all shapes, sizes & values. Unlikely that manufactures use the same values. Here's the chart for your GE ref thermistors Attachment: chart.bmp (Downloaded 546 times)
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| Posted: Tue Sep 19th, 2006 11:56 pm |
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3rd Post |
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Waneewek Scholar of Advanced Appliantological Studies
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That's awesome! Where can I go to find these values when needed for other appliances? This would be useful information to have when trouble shooting. Thanks for your help.
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| Posted: Wed Sep 20th, 2006 02:24 am |
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4th Post |
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hvacdrd Fellow, Academy of Sublime Masters of Appliantology
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Tech sheets, service literature, and of course right here...someone always comes up with the info somehow. I'm sure you are convinced... the power of this forum is endless. 
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| Posted: Wed Sep 20th, 2006 03:46 am |
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5th Post |
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Samurai Appliance Repair Man Fermented Grand Master of Appliantology 
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hvacdrd wrote:... the power of this forum is endless. We are Borg. Resistance is futile. 
____________________ To ask a question, use our new forums==> http://appliantology.org 365-Day No-Hassle Return Policy on all parts purchased through this site, even electrical parts that have been installed! |
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| Posted: Thu Sep 21st, 2006 12:04 am |
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6th Post |
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Bilcor Grasshopper
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What problem are you having with your GE Refrigerator? I am also having problems with my GE Profile. The Fresh Food section has decided to become a Freezer. It gets down to 18 degress. I am thinking that maybe I have a bad Thermostat, but could also be the main control board and the Temp Selector on the top. I really hate to Easter Egg the thing but I can't seem to find any troubleshooting info. The info on the thermisters will be a help to rule them out. Let me know how you come out on your unit. Thanks, Billy C.
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| Posted: Tue Sep 26th, 2006 08:14 pm |
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7th Post |
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spud65 Master Appliantologist 
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will this chart work for the thermister that ge uses for the defrost termination also?
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| Posted: Wed Sep 27th, 2006 03:58 am |
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8th Post |
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hvacdrd Fellow, Academy of Sublime Masters of Appliantology
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There is not a thermistor for defrost termination but there is an evaporator thermistor and yes the chart is the same for that one. The defrost does have a high limit tstat that is in the range of 95 degrees if I remember correctly, this is only there to meet a safety requirement not as a cycling control. Last edited on Wed Sep 27th, 2006 03:59 am by hvacdrd ____________________ Tip Jar |
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| Posted: Wed Sep 27th, 2006 04:40 am |
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9th Post |
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spud65 Master Appliantologist
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hvacdrd wrote: There is not a thermistor for defrost termination but there is an evaporator thermistor and yes the chart is the same for that one. but isnt that what they use to determine when to turn off the defrost?
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| Posted: Wed Sep 27th, 2006 04:44 am |
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10th Post |
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hvacdrd Fellow, Academy of Sublime Masters of Appliantology
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yes - the evaporator thermistor does determine when to terminate defrost.
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| Posted: Wed Sep 27th, 2006 04:55 am |
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11th Post |
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spud65 Master Appliantologist
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Thanks for the info!!!
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| Posted: Wed Sep 27th, 2006 03:49 pm |
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12th Post |
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hvacdrd Fellow, Academy of Sublime Masters of Appliantology
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Some additional info - Defrost terminates when evap thermistor reads approximately 60F or maximum time of 45 minutes. The defrost safety thermostat is rated at 140F(believe it or not) - like I said it is just there to meet some safety standard. Hope this helps
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