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      [Webinar] Electric Circuit Troubleshooting and EEPs   12/05/2016

      I have a special topic for tonight's Office Hours webinar on electric circuit troubleshooting and EEPs. If you've taken the Fundamentals course or watched any of my Youtube videos, you know that EEPs are a topic near and dear to my heart. EEPs = Electrically Equivalent Points. Identifying EEPs on a schematic is a key skill for any appliance tech today.  Another special feature about this Office Hours: in addition to the usual Academy students and Professional Appliantologist members, Senior Appliantology Fellows and Legacy Techs at Appliantology are also welcome to join us for this Office Hours. Just click into the topic below to RSVP and to get the connection info.   

Samurai Appliance Repair Man's Blog

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Reading wiring diagrams: How the Defrost Cycle works in a Danby refrigerator

Samurai Appliance Repair Man

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Brother Reg elegantly steps us through the circuit diagram for this one.

When the Defrost cycle starts (Timer Motor pauses),

the Neutral goes through the Defrost Heater, Defrost Thermostat, and Thermal Fuse to Line.

Whenever the Defrost Thermostat "opens",

the Neutral still goes through the Defrost Heater, but now travels through the Timer Motor

and "seeks" the Line through the Compressor.(and Overload).

Motor resumes, but since the Motor is of a "high" resistance, the Heater hardly heats anymore,

until the Timer completes it's "Defrost timing", and then it switches the Neutral back to itself and to the Compressor.

If any of those parts aren't working, the Motor may not run at the specific time.

gallery_4_4_1617.jpg

Source: Help Me Read This Wiring Diagram