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#1
June 30th, 2009, 06:56 PM
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kick in the defrost cycle
I have a 10 year old Whirlpool self defrost refrigerator(22 cu.ft.) with freezer compartment on top. The problem began with the refrigerator suddenly getting very warm 70 F. While the freezer temperature was below 30 F, the coils were 50% covered with ice and blocking air flow to the refrig compartment. The defrost timer was changed and that did not make a real change. The defrost heating element was found to have 33 ohm resistance (versus below 20 for in spec).
After the new defrost heating element was changed the temperature in the refrigerator is running 44 t0 46 F, the freezer is at 20 F and there is lots of frosty crystals on the coils. It took about 6 hours for the refrigerator compartment to cool from 68 to 46 F. I have never detected the condenser cooling fan not running. Would shutting down for a day and restarting be worth trying? What do you recommend? Model no. ET22DMXFN00 Defrost timer 48293 defrost heating element 2315530 
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#2
June 30th, 2009, 10:02 PM
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Hi,
Did you notice if your evaporator(freezer) fan is running? It sits above your evaporator coils in your freezer? Was the other 50% of the evaporator coils have any frost on them at all? Jake
__________________
Appliance Repair School 1987-1988 Star Appliance Tech. 2 yrs. 1988-1990 Wards Appliance Tech. 11 yrs. 1990-2001 Sears Appliance Tech. 4 yrs. 2001-Oct. 2005 Jake's Appliance Repair Nov. 2005-present If you need more repair advice help on your appliance, click Here Look-Up & Order Parts Shop Home Appliances
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#3
July 1st, 2009, 09:54 AM
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kick in defrost cycle
The freezer compartment fan (blows across coils) is always running.
The rest of the coils did have a lighter coating of frost.
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#4
July 1st, 2009, 10:55 PM
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Ok, hows it been doing all day today?
Jake
__________________
Appliance Repair School 1987-1988 Star Appliance Tech. 2 yrs. 1988-1990 Wards Appliance Tech. 11 yrs. 1990-2001 Sears Appliance Tech. 4 yrs. 2001-Oct. 2005 Jake's Appliance Repair Nov. 2005-present If you need more repair advice help on your appliance, click Here Look-Up & Order Parts Shop Home Appliances
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#5
July 2nd, 2009, 05:22 AM
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kick in defrost cycle
Conditions are now poor!
Refrigerator temperature is 59 F Freezer temperature is 33 F The plastic cover that covers the coils is frozen in place and I can not remove the cover till some of this crystalline ice melts. This cover has a 1 inch layer of crystalline ice on it at the bottom and the cover is coated from the bottom to about 60% up. The amount of air moving in the freezer from the coil fan was much less. The condenser fan continues to blow air at the bottom. 
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#6
July 2nd, 2009, 10:07 AM
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Ok, since you already changed the defrost timer and heater, the only part left that controls the defrost system is the defrost thermostat/bi-metal. Its located on the top of your evaporator coil, you can jump it, just cut the wires on it and tape them together with electrical tape then see if the defrost heater comes on when you put the defrost timer into defrost.
Unplug your refrigerator first before cutting and taping the wires together. Here's the defrost thermostat for your model: Manufacturer's Number: 4387503 Jake
__________________
Appliance Repair School 1987-1988 Star Appliance Tech. 2 yrs. 1988-1990 Wards Appliance Tech. 11 yrs. 1990-2001 Sears Appliance Tech. 4 yrs. 2001-Oct. 2005 Jake's Appliance Repair Nov. 2005-present If you need more repair advice help on your appliance, click Here Look-Up & Order Parts Shop Home Appliances
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#7
July 2nd, 2009, 12:30 PM
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kick in the defrost cycle
How do I put the defrost timer into defrost cycle? Where are there any things to turn. My 2x3 inch timer only has 4 prongs on it.
If you send me the part (bi-metal), what would be the cost including shipping? Would I have it by 7/8?
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#8
July 2nd, 2009, 05:08 PM
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Your defrost timer is located inside your refrigerator section in the temp. control console thats in front on the refrigerator ceiling #4 here:
 There will be a small hole underneath the console where you can put a flathead screwdriver up in there and turn it clockwise slowly till you hear it snap and the refrigerator will shut down and then its in defrost. Click the link for the defrost thermostat I posted above and it will tell you when it will ship and you have options to get it next day or 2nd day air or standard shipping. Shipping cost will be higher with next day arrival. Jake
__________________
Appliance Repair School 1987-1988 Star Appliance Tech. 2 yrs. 1988-1990 Wards Appliance Tech. 11 yrs. 1990-2001 Sears Appliance Tech. 4 yrs. 2001-Oct. 2005 Jake's Appliance Repair Nov. 2005-present If you need more repair advice help on your appliance, click Here Look-Up & Order Parts Shop Home Appliances
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