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Joined: 9/10/2007(UTC)
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Lookat your motherboard, if you finf a burnt resistor, your driver is bad. You will need to order a new board.
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Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
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Look at your motherboard, if you find a burnt resistor, your driver is bad. You will need to order a new board. Save the old board, might be repairable.
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Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
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Look at your motherboard, if you find a burnt resistor, your driver is bad. You will need to order a new board. Save the old board, might be repairable.
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Rank: Member
Groups: Registered
Joined: 3/8/2009(UTC)
Posts: 19
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Thanks. I could not see any burnt resistors. This board is less than three years old. I still have the original board that's ten years old which also doesn't have any burnt resistors.
Based on my testing result, I. E. Zero resistance between the red and white wire for the evaporator fan motor, the motor is bad. A non-functioning evaporator fan will not pull the cold air from the lower part of the freezer to the icer maker (top). This is all making sense. Waiting for the motor to be shipped on Monday.
Am I missing anything?
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Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
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This is a six pole induction motor with six windings, very rare they short out.But, If it was drawing excessive current, it usually burns out the driver on the board. I would order a new board, you can allways return it if the old one is good, just saves time.
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Rank: Member
Groups: Registered
Joined: 3/8/2009(UTC)
Posts: 19
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Thank, Richappy. Is there a way to test the motor?
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Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
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No really easy way to test the motor. One set of pins gets a square wave, the other a dc level. Best to replace both board and motor, you can allways return the board if you find yours ok.
I have never seen a bad board blow out a motor, usually the bad motor blows out the driver on the board.
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Rank: Member
Groups: Registered
Joined: 3/8/2009(UTC)
Posts: 19
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Thanks. The motor was ordered over the weekend and it will arrive today. I did check the harnes according to a post fron Gene previously. The VDC between red and white is 12V, between yellow and white is 12V. So that means the motor is bad. Will see this is true. Will post back after replacing the motor.
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Rank: Advanced Member
Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586
Was thanked: 2 time(s) in 2 post(s)
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The motor must have a square wave, average value 1/2 the 12 volt supply or around 6 volts on a average reading dc meter. Your board is not sending the square wave!
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Rank: Member
Groups: Registered
Joined: 3/8/2009(UTC)
Posts: 19
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Richappy, thanks again!
To close the loop, I replaced the motor last night. It has been working so far. Icemaker started to make ice and the top part of the freezer is cold now. Will keep fingers crossed.
BTW, you are right about the board. I also had to replace the board. Now I will use a surge protector, too. :)
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