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ApplianceGuru.com: The Samurai Appliance Repair Forums > Do-It-Yourself Appliance Repair Help > The Laundry Appliance Repair Forum > Maytag Neptune MAH3000AWW stalls in rinse
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ApplianceGuru.com: The Samurai Appliance Repair Forums > Do-It-Yourself Appliance Repair Help > The Laundry Appliance Repair Forum > Maytag Neptune MAH3000AWW stalls in rinse |
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| Moderated by: RegUS_PatOff, appl.tech.29501 |
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| Maytag Neptune MAH3000AWW stalls in rinse | Rate Topic |
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| Posted: Sun Apr 9th, 2006 03:44 am |
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1st Post |
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cepstral Grasshopper
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I have a series 17 washer that recently started stopping in the rince cycles (both regular and delay cycle). It basically enters the rinse cycle & continues tumbling for at lease 5 minutes before the washer shuts off. I ran some tests on it today & monitored the signals going from the timer to the Machine Control board (1A, 1B, 2A & 2B). I used the paper dial indicator from the service manual to indicate the washer state. I had the front panel switches set to Cotton/Sturdy, Warm/Warm and Options/Reset. I set the timer knob to the start of the LIGHT TUMBLE cycle & started the washer. CYCLE 1A 1B 2A 2B APPROX TIME ----------------------------------------------------- LIGHT TUMBLE H H L L 2 min RINSE FILL & BLEACH DISP H L H L 2 min DRAIN & SPIN 1 L L H L 3 min RINSE, FILL & TUMBLE H L L H > 4 min*** DRAIN & SPIN 2 L L L H 3 min RINSE, FILL & TUMBLE H L L H > 4 min *** DRAIN & SPIN 2 L L L H 3 min RINSE, FILL & TUMBLE, FAB H L L H > 4 min *** DRAIN & SPIN 2 L H L H > 7 min*** For 1A/1B: L = ~27VAC, H = ~115VAC For 2A/2B: L = 0 VDC, H = ~-24 VDC I monitored the Timer Motor signal on the Machine Control board (P7-3) towards the end of each cycle. It would go to ~115VAC when the timer moter is operating (~3 VAC when it was not operating). Note: on cycles marked *** the Timer Motor signal never went high, and the timer motor would not operate. For these cycles, I would nudge the timer dial until the Timer Motor signal was activated and the timer motor would operate, causing the timer to advance to the next state. If I don't touch the dial, the washer remains in the first Rinse, Fill & Tumble cycle for a long time until it times out and the washer shuts off. Do I have a faulty timer or something else? I thought the Machine Control board causes the Timer Motor signal to operate to make the timer motor come on & once the timer motor cam operates the motor will stay on until the timer advances to the next state. The Machine Control board seems to be getting the right signals from the timer and the timer motor cam can't operate until the timer motor starts - right? This seems to draw suspicion away from the Timer - but it is curious how nudging the timer makes it work. Any help would be appreciated!
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| Posted: Sun Apr 9th, 2006 06:19 am |
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2nd Post |
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Samurai Appliance Repair Man Fermented Grand Master of Appliantology 
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Is water entering the tub during rinse?
____________________ For service manuals and lots of other goodies, become an Apprentice==> http://apprentice.applianceguru.com  |
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| Posted: Sun Apr 9th, 2006 03:06 pm |
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3rd Post |
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Trying to help Fellow, Academy of Sublime Masters of Appliantology 
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Samurai probably has hit it on the head. In wash your water temps are monitored and mixed in an attempt to achieve approx. 75 + or - 5 degree tub water temp. Most parts of the country the cold water temps this time of year are between 40-55, In a cold wash it will start cold then switch to hot for almost the complete cycle. Warm wash temps are 105+ or - 5. That will be almost a straight hot wash for most of the country as well. The rinses are not thermostatically controlled. They are straight cold. Try your unit in wash on hot, look at the water volume going in. Then stop it and turn it to the #2 rinse. Start the unit again and observe the water volume. If it considerably less, either your water is not on all the way, or one of your screens in the inlet hose or water valve are clogged with sediment. The unit is designed to run for 5 minutes, if the pressure switch is not satisfied, it shuts off. Since rinse is considerably more water then hot, and most of the sediment in the house water is in the cold lines, this problem always happens in rinse
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| Posted: Sun Apr 9th, 2006 06:31 pm |
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4th Post |
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Samurai Appliance Repair Man Fermented Grand Master of Appliantology
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Trying to help wrote:Samurai probably has hit it on the head. Every now and then, I have a lucid moment. 
____________________ For service manuals and lots of other goodies, become an Apprentice==> http://apprentice.applianceguru.com |
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| Posted: Mon Apr 10th, 2006 12:58 am |
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5th Post |
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cepstral Grasshopper
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Samurai nailed it - Domo arigato!
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