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Customer Questions and Answers for Defrost Control Board by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM12211218
Manufacturer Part Number: 61005988

Adaptive defrost control board.

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Questions & Answers

For Whirlpool Defrost Control Board (Part Number: OEM12211218)

1 Answer

Hello Gary, You need to test the defrost thermostat WP61006199 for continuity with your ohm meter. If it is open when it is cold enough, (operating temperature), it has failed and will require replacement. If it tests good, the adaptive defrost control 61005988 will be the issue.

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1 Answer

Hello George. We have no way of knowing if the unit is a fire hazard. If you feel it is, then unplug the unit.

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Big Mac 37 for Model Number MSD2756DEQ

I have a MSD2756DEQ Model Whirlpool Side by Side Refrigerator/Freezer. SN 10507386YH, installed in my home May 2000. In the last year I have had the refrigerator side shows warm on my refrigerator thermometer. Because of a similar experience several years ago, I learned from a refrigerator repairman to take the back panel in the freezer compartment off to look at the evaporator. I have done that and each time in the past year it has been coated with ice. Using a hair dryer, I have melted the ice off, put everything back and it works. A friend suggested it could be a problem with the defrost timer. I know there must be some sort of defroster mechanism also. How can I figure out on my own, what is wrong and what part to replace?

1 Answer

Hello Big Mac 37, First you need to make sure it is a defrost issue. The frost pattern will tell on the unit. If the frost is only across the top of the coils, the issue is an air flow problem. If the frost covers the complete coils, the issue is probably a defrost issue. The most common defrost component for this unit to experience is that of the adaptive defrost control 61005988. Please note that just replacing the part will not completely clear the issue. The coils have to start out with no frost so if this part is replaced, the coils need to be defrosted with the hair dryer to prevent an issue with the existing ice build-up.

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Andrew for Model Number ED2NHEXN00

I have a Whirlpool side by side model that cycles between having a moderately cold freezer compartment (capable of producing ice) and a not-so-cold refrigerator side. This condition persists even with the refrigerator indicator knob at its COLDEST dial setting. On some occasions the ice within the bin begins to thaw. At this point I disconnect the unit for a period of time and then reconnect it. This seems to do the trick until the thawing condition reappears. Where should I begin my diagnosis. I have basic tech skills. Thanks.

1 Answer

Andrew, You will want to check to see if the fans in the unit are running when the unit appears to be thawing. This issue sounds like the unit is getting stuck in a defrost cycle. This would happen about every 10 -12 hours that you would notice the temp rising. If this is the case then the defrost control board would need to be replaced, part number WPW10366605.

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1 Answer

Hello Samantha, The defrost control board 61005988 is one of the two things I would check. If the board doesn't take care of the problem, I would next look at the start device 12002784 for series 26 or lower OR 12002794 for series 27 or higher, on the side of the compressor. If it rattles when you shake it, it is bad.

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1 Answer

Hello Chris. No, the polarity of the defrost thermostat does not matter. It does sound like a bad board in the unit.

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1 Answer

Robert, For slow ice production you will want to check the temp in the freezer to make sure that it is at least 10 degrees or below for optimal icemaker operation. If the temp is too warm then you will need to check for the coils be clogged with ice that will make the unit warmer than normal.

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