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-   -   Determining if defrost heater is bad (http://www.diychatroom.com/f47/determining-if-defrost-heater-bad-194107/)

ed3120 01-16-2014 10:51 AM

Determining if defrost heater is bad
 
I have a GE GSL25JFPBS side by side where the defrost coils keep freezing up. I changed the defrost thermostat. I checked continuity on the old one and it was continuous below freezing and at room temperature, so I wonder if the circuit stayed closed long enough to burn something out.

Replacing the defrost thermostat alone did not fix the problem. I'm looking at the defrost heater now, which I can see has some carbon buildup in it.

I saw a Youtube video that said check the resistance and make sure it has less than 50 ohms. When I check the resistance, I get about 20 ohms. When I test it for continuity, my multimeter doesn't beep. How do I know if it needs to be replaced?

joecaption 01-16-2014 11:28 AM

http://www.repairclinic.com/RepairHe...ng-GSL25JFPBBS

jmon 01-16-2014 11:32 AM

As you have mentioned, the next step would be to suspect the defrost heater.

click here for repair clinic

Ah... Joe typed faster than I did and beat me to it. Sorry.

ed3120 01-16-2014 01:00 PM

Based on my test results, should I assume that the heater is bad?

jmon 01-16-2014 01:33 PM

If your getting continuity then it should be good. Did you have it disconnected completly from fridge when you did your testing? If not, do that and test it again.

If everything checks out good, then possibly control board may be bad.

Also if it looks brown or burnt it probably will fail soon anyway. Just a thought.

jfrotten 01-16-2014 05:30 PM

Do you notice that every time you walk past the fridge it's running? We use this model in our apartments and I've noticed over the years that if the defrost system fails, it will freeze up in about three days. If it takes more like a week to ten days to freeze up it's usually the thermostat that controls the temperature in the freezer. Basically it thinks that it's warmer than it is and keeps the freezer running nonstop. It think they're like fifteen dollars and there's two of them in the freezer.


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