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ApplianceGuru.com: The Samurai Appliance Repair Forums > Do-It-Yourself Appliance Repair Help > The Laundry Appliance Repair Forum > Kenmore 417.42042100 front load washer |
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| Kenmore 417.42042100 front load washer | Rate Topic |
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| Posted: Sun Oct 25th, 2009 06:48 pm |
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1st Post |
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srkolb Apprentice Appliantologist
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I have a 2002 Kenmore front load washer, Model #417.42042100. There are lots of posts about these washers that I’ve found very helpful. I just want to make sure I’m diagnosing things correctly because I’ve determined that the speed control board AND the motor are bad. In short, the washer fills with water but never spins. I followed the instructions in the Tech Sheet: 1. Advanced the timer to the drain increment and the drain pump runs. 2. Removed motor drive belt and set the timer to the start of the Regular wash cycle and pulled the knob out. The motor did not run. I don’t know how to check for a poor connection in the timer line switch or door lock switch but the water pump runs. From other threads, that seems to indicate that the two switches are OK. 3. Removed the 6 pin plug and measured 120 Vac between pins 5 and 6 on the harness. 4. I set the timer to the Heavy wash position and measured (on the harness) 0 Vac between pin 1 and 5 and 120 Vac between pins 2-5, 6-5, and 10-5. 5. The fuse was good. 6. The next step is to measure the resistance between pins 1-2, 1-3, and 2-3 on the speed control unit. However, it’s not clear if the 10 pin harness should be plugged in and if the timer knob should still be on heavy wash with knob pulled out. So, I measured all combinations. With 10 pin harness plugged in, timer still on Heavy Wash with knob pulled out, I measure 150-170 kohms between the pins. With the timer knob off, I measure 12 Mohms, whether the 10 pin harness is plugged in or not. In no case do I measure the expected 3 Mohms so it says I should replace the speed control board. 7. I also checked the motor windings by unplugging the power cord and measuring between pins 1-2, 1-3, and 2-3 on the 6 pin harness (now I’m measuring on the harness side, not the speed control board). Between pin 1-2, I measured 2.7 ohms but I measured opens between pins 1-3 and 2-3. Does this imply my motor is also bad? If both the speed control board and the motor are bad, then I'm looking at $300 in parts which hardly seems worth repairing. I have only a few simple repairs under my belt so I could easily have done something wrong here.
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| Posted: Sun Oct 25th, 2009 07:13 pm |
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2nd Post |
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RegUS_PatOff Fellow, Academy of Sublime Masters of Appliantology
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. Attachment: Page from 5995369211.jpg (Downloaded 42 times)
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| Posted: Sun Oct 25th, 2009 07:33 pm |
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3rd Post |
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srkolb Apprentice Appliantologist
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Thank you! Your flow chart is truly worth a thousand words. It appears I have a defective motor.
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| Posted: Mon Oct 26th, 2009 01:00 pm |
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4th Post |
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NCSU_laundry_tech Sublime Master of Appliantology
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bad motors are rare compared to speed boards. make sure your meter reads close to 0 ohms when you touch the leads together
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| Posted: Mon Oct 26th, 2009 01:21 pm |
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5th Post |
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telefunkenu47 Master Appliantologist
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I agree, motors seldom fail. I have however seen the wire connections go bad between the molex connectors on the motor. Be sure to give them a good examination with the eyballs and VOM.
____________________ Even root canal is easy...if you're a dentist... |
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| Posted: Tue Oct 27th, 2009 03:13 am |
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6th Post |
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srkolb Apprentice Appliantologist
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I think my meter was working correctly. I measured 2.7 ohms between pins 1 and 2 but open between 1-3 and 2-3. I suppose it could be a bad connection in the harness. A new motor should arrive on Wed. so I'll know soon enough if I can find the time to work on it. Thank you for all your help.
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| Posted: Thu Oct 29th, 2009 02:49 am |
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7th Post |
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srkolb Apprentice Appliantologist
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telefunkenu47, You were right. The motor was just fine but the molex connector at the motor is bad. Two of the wires (pin 3 and pin 6) have pulled free of the connector. Unfortunately, I can't buy just that wire harness _ it's only sold as the full set of wires: $146 and on backorder. Now I have to learn how to repair a molex connector (if that's possible).
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| Posted: Thu Oct 29th, 2009 07:13 am |
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8th Post |
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Samurai Appliance Repair Man Fermented Grand Master of Appliantology
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srkolb wrote:telefunkenu47, Nice shootin', Master Telefunken! When a molex connection is bad, it's usually a visual kind of a deal. Typically, one of those pins gets recessed just a bit and doesn't make good connection with the mating socket. Can look at the back and see which one is showing more metal than the others. If you can determine which pin connection is bad and you can't see the problem, you can always bypass it altogether by splicing in wire. Done correctly, the splice can be more reliable than the original molex connection.
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