freezer icing up - which circ. board contains the defrost timer? - Appliance Repair Forum

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Model: HSS251FMDWW	Brand: -brand-	Age: 1 - 5 years
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frankv		#1 Posted : Monday, August 24, 2009 6:57:47 PM(UTC)
Rank: Member Groups: Registered Joined: 3/29/2009(UTC) Posts: 6		I replaced the heater and the defrost sensor in the refrigerator and it's still icing up. This fridge has two circuit boards...which one contains the defost timer? !


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frankv		#2 Posted : Wednesday, August 26, 2009 9:20:32 PM(UTC)
Rank: Member Groups: Registered Joined: 3/29/2009(UTC) Posts: 6		Originally Posted by: frankv I replaced the heater and the defrost sensor in the refrigerator and it's still icing up. This fridge has two circuit boards...which one contains the defrost timer? !


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richappy		#3 Posted : Thursday, August 27, 2009 1:53:53 AM(UTC)
Rank: Advanced Member Groups: Senior Expert Joined: 9/10/2007(UTC) Posts: 9,586 Was thanked: 2 time(s) in 2 post(s)		Did you replace the defrost thermostat a round disk, AP3884317. or the evaporator thermistor, a white pencil shaped item clipped to the top of the evaporator, AP3185407


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frankv		#4 Posted : Thursday, August 27, 2009 5:16:16 PM(UTC)
Rank: Member Groups: Registered Joined: 3/29/2009(UTC) Posts: 6		I did replace the thermostat round metal plate and the thermaiser wish is the white tube like a pencil tip dont know which is the defrost timer on this model


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richappy		#5 Posted : Friday, August 28, 2009 12:24:13 AM(UTC)
Rank: Advanced Member Groups: Senior Expert Joined: 9/10/2007(UTC) Posts: 9,586 Was thanked: 2 time(s) in 2 post(s)		Replace the motherboard in the back. Call this parts site for the correct part #.


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sdillonmgm		#6 Posted : Friday, August 27, 2010 3:07:15 PM(UTC)
Rank: Member Groups: Registered Joined: 8/27/2010(UTC) Posts: 2		Frank. Did you ever solve your problem? Sounds like you dug in pretty good. I have the same fridge that seems to (I'm guessing defrost mode) shut down, then not cold back up until the food spoils. I put an ice cube in the freezer and it'll be fine for days, then I'll go out and check it, and the cube is gone. It's in my garage right now with nothing in it and I want to fix it and sell it. Any ideas?


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