For more tech advice on your repair, or to order parts, visit http://Appliantology.org Become a certified appliance repair technician at our online school, the Samurai Tech Academy: http://MasterSamuraiTech.com This screencast explains how to become an Apprentice in the Appliantology Academy, the features and benefits of Apprenticeship, and how to get appliance service manuals. www.Appliantology.org ... https://www.youtube.com/watch?v=Bi_qInRIAxc

Easy-to-follow, step-by-step guide on how to enter diagnostic mode in a Whirlpool Vertical Modular Washer (VMW). Diagnostic mode can be used during troubleshooting in a variety of ways to help locate the place or cycle where an error is occurring. —————— Want to become a master of laundry repair? Enroll in MST’s online Advanced Washer and Dryer course to become a master of laundry repair. Check out the online course here: https://mastersamuraitech.com/online-appliance-repair-courses/washer-and-dryer-repair-training-course/ Get peer-to-peer tech help at our online forums: https://appliantology.org ... https://www.youtube.com/watch?v=7kWrIPaWLUM

This is an excerpt from a longer Master Samurai tech workshop where we learned how to use the timer chart with the schematic to troubleshoot problems in appliances; washers in this case. Being able to analyze a schematic and see how a circuit is supposed to function is real work that all goes on inside our heads when we're troubleshooting an electrical problem. Even though customers don't see anything happening when we do this, schematic analysis is the indispensable, high skill part of our job as techs. In this workshop, we used the timing chart and schematic on the tech sheet to troubleshoot a no-agitate problem on an old skool Whirlpool direct drive washer. We applied two proven and effective troubleshooting procedures: the Ten Step Tango™ and the Timer Chart Cha-Cha™. By using the timing chart and schematic together, we determined exactly how the motor circuit is supposed to operate. And if you know how a circuit is supposed to work, you can always determine exactly what's wrong in these simple circuits-- no guesswork, no parts changing. In addition to troubleshooting the exact problem with this washer, we also talked about: - How understanding and identifying EEPs - Electrically Equivalent Points - let's us do our troubleshooting from a convenient central location, the timer, with minimal disassembly. - Ground vs. Neutral - Voltage vs. Voltage Drop - How start winding polarization controls the motor shaft starting direction - Ghost voltage and loading meters Premium tech members at Appliantology can watch the full webinar here: https://appliantology.org/topic/70571-troubleshooting-with-timing-charts-and-schematics-ten-step-tango™-and-timer-chart-cha-cha™/ Information on becoming a premium tech member at Appliantology: https://appliantology.org/blogs/entry/1043-professional-appliantologist-membership-application/ Full list of webinar recordings at Appliantology available to all premium tech members: https://appliantology.org/announcement/33-webinar-recordings-index-page/ Enroll today at the Master Samurai Tech appliance repair school for top-notch online appliance repair training and a FREE premium tech membership at Appliantology.org: https://mastersamuraitech.com ... https://www.youtube.com/watch?v=Qs1JjkNSK78

Can you believe there are techs out there who use an o-scope to look at the output from a sound mixer and conclude this is how Line voltage works? The output of a sound mixer is the output of a summing amplifier (Google it). It is an electronically modified signal. To look at this output and assume that Line voltage behaves this way is the height of stupidity. I call it "Idiot with an O-scope syndrome." Household power supplies in North America use what's called a split-phase system. The transformer on the pole outside the house takes grid power and steps it down to 240 VAC from end to end on the secondary winding. The secondary winding has a center-tap in it which splits this 240 VAC into two 120 VAC voltages from either end to the center tap. This center tap is defined as Neutral and it is tied to Ground in the circuit breaker box inside the home. The two 120 VAC voltages are 180 degrees out of phase with each other and it is this very antiphase relationship that creates the voltage difference of 240 vac between L1 and L2.  There's a lot of disinformation and tech myths out there about 120/240 split-phase household power supplies. You may have even seen videos online claiming that the split phases are in-phase with each other. This is complete hogwash and I prove it to you in this video.  I show the proper phase relationship (180 degrees) between Line 1 to Neutral and Line 2 to Neutral right at the circuit breaker box using an oscilloscope. Learn electricity, circuits, and troubleshooting from a proven master with verifiable credentials at the Master Samurai Tech Academy. http://mastersamuraitech.com ... https://www.youtube.com/watch?v=vOh2OSJ44eE