Special guest presenter Mark Williams will show you how easy it is to diagnose temperature problems in the newer electronically-controlled refrigerators and how to do it right the first time. 

We'll show you examples from Samsung, LG, GE, Whirlpool, and Electrolux. You'll see that they all work the same way. 

You'll also see how to accurately test thermistors from the computer control board and you’ll learn the difference between resistance and voltage drop when it comes to testing thermistors. 

Topics covered include:

• What is an NTC thermistor?
• How to read a thermistor chart
• How to test a thermistor using voltage drop and ohms
• How to properly structure a refrigerator service call
• Run through several case studies showing how to approach temperature control problems
• ...and more! 

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