Rank: Member
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Joined: 8/6/2009(UTC) Posts: 5
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I have a Hotpoint HSS25IFMD WW side by side Frig/Freezer. The freezer coil does not appear to defrost. Every two or three weeks I have to manually defrost it. I have replaced the Defrost heater element, the thermistor, and the Main Circuit board.
Two questions:
1) What else can be wrong?
2) How do I test the Defrost cycle so I can see the element get hot?
Thank you!
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Rank: Advanced Member
Groups: Senior Expert, Administrators Joined: 7/19/2007(UTC) Posts: 27,455
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Have you checked the defrost thermostat (#240 on the diagram) for continuity? Gene.
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Rank: Member
Groups: Registered
Joined: 8/6/2009(UTC) Posts: 5
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Gene, No I have not. However, I have replaced that part.
Is that not the "Thermistor"?
Should that provide continuity when it is too cold?
Thanks.
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Rank: Advanced Member
Groups: Senior Expert, Administrators Joined: 7/19/2007(UTC) Posts: 27,455
Was thanked: 4 time(s) in 4 post(s)
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Quote:...Is that not the "Thermistor"?... No, it's not. The thermistor is shown as #241 on the diagram which I would recommend to review in order to better understand parts location. Quote:...Should that provide continuity when it is too cold?... The cold thermostat should be "closed". The thermistor should show a different resistance depends on the temperature. Gene.
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Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC) Posts: 9,586
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You may have a bad evaporator thermistor. Check its resistance per your service sheet, or go to the "sticky" above "GE (GS and HS refrigerators) for thermister common resistances. You can check right at the Ji connector on the motherboard per your data sheet, or the data given in the sticky. If ok, remove the motherboard 4 pin power connector, notice which pins are labeled "line and defr.) and place a jumper across the same connector pins.Then plug in the fridg. If freezer is cold, it should defrost, you can check with an amprobe. If not, you have to check the freezer for the bad component.
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Rank: Member
Groups: Registered
Joined: 8/6/2009(UTC) Posts: 5
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Richappy,
Thank you. I belive that I can follow that specifc advice. I apprciate that you and Gene have taken the time to assist me.
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Rank: Advanced Member
Groups: Senior Expert, Administrators Joined: 7/19/2007(UTC) Posts: 27,455
Was thanked: 4 time(s) in 4 post(s)
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You are welcome. Keep us posted.
Gene.
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