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Customer Questions and Answers for Motor Start Switch by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18038667
Manufacturer Part Number: WP8529896

Installation instructions included.

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Questions & Answers

For Whirlpool Motor Start Switch (Part Number: OEM18038667)

Steve for Model Number Whirlpool Estate TAWS800JQ1

Earlier I ask a question in reguards to my washer humming and the timer making a clicking or ticking sound after it satisfied the water level. I performed the trouble shooting tastes that you suggested: Checked lid switch, it was OK...was able to turn the motor and gearbox freely, so that checkout OK...You then suggeted it was probably the timer. Is there a way to checkout the timer before I purchase one, it is making a the clicking or ticking sound. By the way, you do have a very nice web sight, it is easy to use and the parts breakdown for each unit is very well defined. Thanks for your help so far, and hope there is possibly a way to troubleshoot a timer. Steve

1 Answer

Hello Steve, The ticking and clicking sound is normal. This is the timer motor advancing the timer. The contacts in the timer is the part of the timer in question. If a set of contacts stick and voltage is supplied to the motor on more than one terminal at the same time, this situation can occur or the motor can periodically start and overheat, tripping the motor overload. The technical sheet should be in the control panel. This is used to determine which contacts are open and shut and where the voltage is being sent. The way I would recommend to look for the trouble is to ground one lead of your test meter and use the other to test for ac voltage. Check for ac voltage at the motor contacts with the unit in the run position. When it get to the point that it hums, check for the voltage on the orange, blue, and red wires. If there is voltage on more than one of these terminals, the timer is probably to blame. You can use the time chart to determine exactly which one has voltage that isn't supposed to have it.

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1 Answer

Hello Steve. Check and make sure the lid switch 3949247V is good on the unit. If so, and the unit is humming, it sounds like the timer may be bad on the unit. Make sure the motor and the pump turn freely. If so, and only humming, replace the timer WP3948852 on the unit.

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1 Answer

Hello Jose, This sounds like a bad cycle switch WPW10168257. This controls which windings in the motor gets the voltage which is how the speeds are determined. It sounds like the switch is only passing the voltage to the gentle winding of the motor.

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1 Answer

Hello Bob. It sounds to me as though the motor is getting 120Vac from two sources at once when it should only get it from one at a time. Many times this is due to a fabric selector switch failure. Either WPW10150079 or WPW10168257. I say either or because the rotory switches are not labeled on the diagram so you should refer to the diagram for the switch location. It is called different names on different models but it will be the switch that determines wash speed and agitation speed. This can be a tricky diagnosis as the complaint can be caused by anything in the circuit including the wiring harness 3957363, the motor WP8529935, the motor capacitor WP8572720 or the timer WP8557393. My suggestion is to use the wiring diagram normally found behind the control panel and refer to this link for test meter use: You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. Hope this helps. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html If we can help anymore, please feel free to contact us and we will be happy to provide all the assistance possible.

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Chad for Model Number 110.28922790

Washer fills with water, then sometimes agitates, but sometimes not. When it doesn't, I used to be able to turn timer to drain, drain just a little water, turn back to wash and it would start working. Now I have to drain most of the water to get it to start agitating. After doing this, I've tried to reset water level to desired amount, but it won't start agitating again after it refills. If I get it to agitate by draining most of the water out (hardly enough water left to do a tiny load), let it run through the rest of the cycles normally, start timer back to beginning of a normal wash, then it will work normally that time around, and for the next several washes (maybe 5 or so). I Have switched out the timer, and it behaved the exact same way. I have tested water level pressure switch with ohm meter and seems to be working fine. Could the motor start switch cause this bizarre behavior? Oh yea, once in a great, great while it won't spin. When it chooses not to agitate (or spin) the only noise you hear is the very faint clicking of the timer. Thank you in advance for any help!

1 Answer

Hello Chad. Based on the information you provided, it sounds like the pressure switch W10339326 is bad and will need to be replaced. Sometimes, the pressure switch can check ok, but actually be bad in the unit. You will need to replace the pressure switch and the pressure hose. Hope this helps.

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1 Answer

William, First check and make sure you have at least 108 VAC at the outlet, when the motor starts and is running. Low voltage can cause the motor to overheat and trip the overload inside the motor. Also check and make sure there's no small articles, stuck under the agitator. You'll need a multimeter to test the voltageTJMA-DMT3 and here's some meter usage info. [http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html] Thanks and Good Luck

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Tony for Model Number Whirlpool LA5558XTW2

My washer fills but intermittently (increasingly) does not agitate. Most of the time if you move the agitator or the drum by hand, this will start the machine working. Once it starts, it completes the cycle fine (agitate/rinse/spin). The timer has been replaced and goes through its cycle fine. The lid switch is currently bypassed. Since it spins fine (even with heavy loads), I am thinking the clutch is okay. Does this sound like a motor switch failure? What else should I be checking? Thanks. Tony

1 Answer

Hi Tony. You are experiencing the motor failure. You can replace the motor switch part # WP8529896 or the motor assy. complete part # WP661600. If you have black dust underneath the tub area, you need to replace the motor coupler part # 285753A. Thank You.

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