Whirlpool washer, Model #wtw5000dw0 wont spin. I checked the belt, its fine. thought it was the motor coupler but I don't know where to find it.Can you tell me where it would be if this model has one

fix it. God bless you
Water Level Control / Pressure Switch
his is the most common reason a washer will agitate but not spin. To check this on most , with no water you should have continuity on pins 7&15. With the tub full 7&16 should have continuity. This video walks you thru checking another type of switch.

Lid Switch
This can be the problem for the washer not spinning . Most whirlpool styles this will effect both agitate and spin but some models will still agitate but not spin.This is easy to check. You will need to remove the switch, this varies with model type but the testing will be the same. When the lid is closed the switch should have continuity when the lid is opend the switch should have no continuity. If it differs replace the Lid Switch.

Timer
To check the timer you will need to refer to the wiring diagram or disassemble to access the motor. Check the leads from the timer to the motor when turned to a wash cycle this should have 120 volts. If not replace the Timer, if it does the timer is not the problem.

Motor
To check the motor you will need to disassemble the washer to access the motor. First you can check the motor windings, to do this remove the plug and connect ohmeter to terminals. Refer to the tech sheet or service manual for the proper reading. Check motor for shorts by connecting ohmeter to terminals and motor housing should have no continuity. Connect voltmeter to motor wire connector and check for voltage. You should have 120 volts, if you do and the motor does not run replace the motor. If it does not have power the problem is elsewhere.

Belt
If your washer is a belt drive type make sure the belt is tight. Check for black soot from belt wear. Replace if it has excessive wear or broke.

Motor Coupler
This is a fairly common problem with direct drive machines but inexpensive and easy to replace. The Motor Coupler transfers power from the motor to thetransmission. The following video will walk you through the replacement of the Motor Coupler.

Transmission
The transmission does not usually fail. To check this on a direct drive remove the motor and then turn tub inside. If it spins freely with no noise theproblem is elsewhere. If it is noisy it needs replacing this is expensive and depending on the age of your machine you may not want to replace it. On a belt drive remove the belts and spin tub.

The most common cause for the coupler failing is a bad gearcase. The machine should go through a neutral drain before the spin if it doesn't drain the water first it over works the motor trying to spin a full tub. No belt on this one, odor could be from the motor or the coupler starting to shred again.

If it will not spin either, but the motor does run, the motor coupler has failed. It is also possible the transmission has a problem, but the motor coupler is more than likely the problem. This model does not use a belt, it uses the coupler instead.

The clothes are wet after spinning When the clothes are wet at the end of a cycle, check these: Motor coupler Spin cycle Siphoning Water-inlet valve Motor coupler To test the motor coupler, re-start the washer in its spin cycle. Let the machine run for a minute, and then open the lid and notice whether the tub is spinning: If it's spinning when you lift the lid, the coupler is fine. If it isn't spinning--and your machine was produced by Whirlpool®--you may have a broken coupler. Many Whirlpool-made washers use a small, relatively inexpensive device called a motor coupling. This plastic-and-rubber component is mounted to the shaft of the motor on one side, and to the transmission on the other. Over time, the coupler wears out and fails. When that happens, you need to replace it completely. Spin cycle If the washer doesn't reach its proper spin speed, the clothes may be too wet at the end of a cycle. Check to be sure the load is properly balanced and run a spin cycle again. If the clothes are still wet, you may have a worn or loose belt (Maytag®), a worn clutch (GE®/Hotpoint®), or a worn motor pulley or tub bearing. Replace the applicable component. Alternatively, there could be clothes caught between the inner and outer tubs. Read the "It spins but won't pump" section of the "It won't drain" section. Also, there could be other things that cause friction on the drive train. Seek the assistance of a qualified appliance repair technician.

The clothes are wet after spinning When the clothes are wet at the end of a cycle, check these: Motor coupler Spin cycle Siphoning Water-inlet valve Motor coupler To test the motor coupler, re-start the washer in its spin cycle. Let the machine run for a minute, and then open the lid and notice whether the tub is spinning: If it's spinning when you lift the lid, the coupler is fine. If it isn't spinning--and your machine was produced by Whirlpool®--you may have a broken coupler. Many Whirlpool-made washers use a small, relatively inexpensive device called a motor coupling. This plastic-and-rubber component is mounted to the shaft of the motor on one side, and to the transmission on the other. Over time, the coupler wears out and fails. When that happens, you need to replace it completely. Spin cycle If the washer doesn't reach its proper spin speed, the clothes may be too wet at the end of a cycle. Check to be sure the load is properly balanced and run a spin cycle again. If the clothes are still wet, you may have a worn or loose belt (Maytag®), a worn clutch (GE®/Hotpoint®), or a worn motor pulley or tub bearing. Replace the applicable component. Alternatively, there could be clothes caught between the inner and outer tubs. Read the "It spins but won't pump" section of the "It won't drain" section. Also, there could be other things that cause friction on the drive train. Seek the assistance of a qualified appliance repair technician.

You might check the belt if it's a belt drive. Tension and condition. If it's a direct drive, you should check the drive coupler at the motor.We need the model number for better repair info.

if it will pump out in spin cycle then the motor coupler is most likely bad / larryyb

if it will pump out water in spin cycle then most likely you have a bad motor coupler / larry

No belt on your machine. Sounds like motor coupler that joins motor and transmission is broken. Very inexpensive part but a few steps involved in getting machine disassembled Look up YouTube video on replacing motor coupler on Whirlpool washer.

It sounds like the coupling between the motor and gearbox has worn out. It should cost around $15 plus shipping and handling.