Jump to content


Learn appliance repair at the Samurai Tech Academy.  Learn more.  Earn more.


Use this Search Box to Find Appliance Repair Help Now
Need help finding your model number?
365-day return policy on all parts purchased here, even electrical parts that have been installed!


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Welcome to Appliantology.org, the Web's Premiere Appliance Repair Resource!

The world-famous Samurai Appliance Repair Forums


You can post a question and get repair help for FREE! Click here to get started.


Already a member of the Appliantology Academy? Just sign in with your username and password in the upper right-hand corner of the screen.

 






A Backdoor Test for the Mode Shifter in the Whirlpool VM Washers

Posted by Samurai Appliance Repair Man, in Washing Machine Repair 19 October 2013 · 915 views

whirlpool washer VMW VM washer mode shifter
These new Whirlpool vertical modular (VM) top-loading washers are pretty easy to troubleshoot, mostly because they practically troubleshoot themselves with fault/error code combinations that you can read in diagnostic mode.

The mode shifter has turned out to be one of the common-fail parts on this washer and it's regular rolling inventory for me. Although the fault/error codes will point specifically to the mode shifter if there's a problem with it, there may be situations where you want to test the mode shifter directly. Brother Eric calls the dance steps on that little ditty:


Yes, you should have 5vdc at J2 pin 2 (pink) with connector disconnected. This is a digital logic level provided via pull-up resistor on the control board. The rpm sensor in the shifter will "pull" this level low (0 volts) each time the optical sensor light path is interrupted by the rotating blade inside the transmission. This creates a digital square wave to the processor (switches between 5vdc and 0vdc). The frequency of the square wave is dependent upon speed of rotation of the transmission and is calclulated by the processor to determine rpm. If you monitor J2 pin 2 while wire harness is connected and rotate the tub very slowly, you should see it switch between 5vdc and 0vdc. You should also have 5vdc on J2 pin 1 when in spin mode and 0vdc when in agitate mode.

Eric



Source: Amana NTW4600yq




Like - Plus - Connect - View

Facebook-icon50x50.png google-plus-icon-50x50.png YouTube-icon50x50.png

Find Parts & Diagrams Here

Looking for Appliance Parts? Enter your model number, part number, or even a part description and find it here. 365-day return policy on all parts purchased here, even electrical parts that have been installed!

Search My Blog

Latest Visitors

Random Album Image

Whirlpool Old-Style Icemaker, Inside the Control Head

13 user(s) viewing

0 members, 13 guests, 0 anonymous users


FAQs | Store | Memberships | Repair Videos | Academy | Newsletter | Beer Fund | Contact


Use the Appliantology Parts Finder to Get What You Need!
Enter a model number, part number, type of appliance, brand, or even a part description.
365-day return policy on all parts purchased here, even electrical parts that have been installed!

Your Sometimes-Lucid Host:
Samurai Appliance Repair Man
"If I can't help you fix your appliance and make you 100% satisfied, I will come to your home and slice open my belly,
spilling my steaming entrails onto your floor."


The Appliance Guru | Master Samurai Tech

Real Time Analytics