Course Content
Introduction
In this module, we go over what to expect.
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Introduction
06:10
The Multimeter
The Meter
Grasping The Right Mindset
Utilizing Resources
Intro Module Quiz
Safety and OSHA
Basic Electricity
In this module, we’re going to breeze through the basics of what you’ll need to know about electricity for this field. As the courses progress, we’ll deepen that understanding as it applies to each appliance in particular. The goal of this structure is to avoid inundating you with information you’ll likely overlook until reminded.
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Bare Basics
Basic Electricity
Voltage Drop & Potential
Circuits
Ohm’s & Watt’s Law
17:36
Outlets
Wiring and Voltage Dropping Under Load
Electricity Module
Wire Diagram Basics
More Basics
Dryers
In this module, we explore both gas and electric dryers. We also expand on what you learned about electricity, and we really drive home the point of understanding how voltage potential is a key diagnostic tool to making quick and effective checks.
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Ops and Components
22:18
Heating Electricity
Breaker Boxes
Motor Diagnostics – Control Board
Motor Diagnostics – Timer Models
Dryer Circuit Analysis
Diagnostics – Airflow Testing
Gas Heating System
21:54
Dryer Module
Computer Controlled Appliances
In this module, we'll explore computer-controlled appliances and delve into how logical processes are used in diagnostic work. Please note that this module is still under development, so some sections may not be as fully built out as intended.
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The Brains
Thermistors
Troubleshooting Logic
Refrigeration
In this lesson, we're going to explore refrigeration theory of operations, components, and diagnostic processes.
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Theory of Operations
Systems & Parts
Diagnostic Mindset
Refrigerator Voltage
Circuit Analysis
Fan Operation and Testing
14:37
Refrigeration
Washing Machines
In this lesson, we dive into top load and front load washing machines. We explore components, operations and testing methods.
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Washer Operations, Part 1
Basic Motor Systems
Shifting Operations
Door Locks & Lid Switches
14:11
Washer Operations, Part 2
Front Load Operations
Washers
Ovens, Ranges & Stoves
In this module, we'll explore Ovens, Ranges & Stoves, building on what you've learned in previous modules.
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Introduction
Electric Ovens – Theory of Operation
Electric Oven – Troubleshooting
Ohm’s Law to Find Missing Data
Mock Oven Service Call
30:57
Electric Cooktop Burners
20:42
Gas Operations
Cooktop Burner Operations and Wiring
Gas Bake & Broil
20:14
Ovens
Dishwashers
In this lesson, we're going to learn about dishwashers and their basic functionality.
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Components
Troubleshooting
Dishwashers
Final Overview
Final overview.
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Course Thoughts
Safety In The Workplace
Final Quiz
Learn Appliance Repair

Working on appliances often necessitates the use of a multimeter. With a wide array available, the challenge lies in selecting the right one. Let’s explore the essential functions and features that will prove crucial:

  • Continuity: This function checks for the presence of a complete path for current to flow.
  • Ohms: This measures resistance.
  • Volts AC: This measures AC Voltage.
  • Volts DC: This measures DC Voltage.
  • Capacitance: This measures the level of stored energy in an object, and we use this function primarily for capacitors. Measured in Microfarads.
  • LoZ: This setting measures voltage, however, it applies a low impedance to the circuit. This reduces ghost voltage. (We’ll get into that later.)
  • Temperature Probe: This comes in handy on multiple repairs, as you’ll see when we discuss ovens and dryers.

And another critical measurement that will work to make you a better technician is: Current (Amps).

Some meters are Amp Clamp meters, which will have the ability to measure current along with all the other features. Or you can buy a dedicated Ammeter.

  • Gas oven igniters pull 3.2 to 3.6 amps. When they pull less, the safety valve won’t open.
  • Checking amp draw on dryer motors can be critical to diagnosing them.
  • Amp draw on some compressors is also an important diagnostic process.

As technicians, our goal is to arrive fully equipped and ready to conduct thorough tests as required. Inadequate testing tools expose us to the risk of errors, potentially impacting our revenue and reputation. Setting ourselves apart from the average DIYer, who might only test for volts and ohms, is our objective.

Interactive Module 

Okay, now that we’ve blasted through the basics of the meter functions that you’ll be using, let’s ensure you’re familiar with what they are on a meter. Remember, different meters will have different features and functions, some offering certain features that other’s don’t. By and large, however, the symbols will all be the same.

In the module below, drag and drop the text to the appropriate setting on the meter.

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