How to Read Furnace Wiring Diagram

How to read a furnace wiring diagram. In this video I show how to "read" or follow the wires on a gas furnace wiring diagram. I go over a schematic diagram and a ladder diagram and explain how the different components get energized and it what order. The diagram I am using is actually a pretty simple one compared to many of the others out there. I selected this one because it would be easier to follow along on it. If you were out in the HVAC field though, preferably you should have the furnace operation manual along with the wiring diagram. The manual will tell you which components get energized, in what order, and how long they are energized for. As I explain in the video, the wiring diagram is not straightforward and unless you know how the furnace works, it will be very difficult to figure out the wiring diagram.
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🎞️ Videos Referenced:

How to Wire AC Unit:
   • How To Wire AC Unit - Easy Diagram  
AC Wiring Diagram Full:
   • How to Read AC Wiring Diagram  
Furnace Sequence of Operation:
   • How a Furnace Works - Furnace Sequenc...  
Most Common Furnace Fix (Flame Sensor):
   • Furnace Not Working - The Most Common...  
Flame Sensor Troubleshooting:
   • Furnace Not Working - Troubleshooting...  
How to Check and Replace Ignitor:
   • Furnace Not Igniting - How to Check a...  
10 Reasons Why Furnace Overheats:
   • Furnace Overheating - 10 Reasons Why  
High Limit Switch Stuck Open:
   • Furnace Not Blowing Hot Air - Easy Fix  
10 Pressure Switch Problems and Fixes:
   • Furnace Pressure Switch Troubleshooting  
How to Troubleshoot Pressure Switch:
   • How to Test Pressure Switch on a Furnace  
Furnace Error Code Basics:
   • Furnace Blowing Cold Air! Where Shoul...  
How a 2 Stage Furnace Works:
   • How a Two Stage Gas Furnace Works  
How to Check Furnace Inducer Motor:
   • Inducer Motor Not Coming On - How to ...  
Flame Rollout Switch Tripped:
   • Furnace Flame Roll Out Switch Tripped...  
Basic Thermostat Wiring:
   • Basic Thermostat Wiring - How to Wire...  
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📙 For Many More Furnace Repair Videos, Visit My Furnace Playlist:
   • Furnace Playlist  
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For More Repair Videos:
🔌 Dryer Repair Playlist:
   • Dryer Playlist  
🧺 Washer Repair Playlist:
   • Washer Playlist  
❄️ AC Repair Playlist:
   • Air Conditioner Playlist  
💧 Water Heater Playlist:
   • Water Heater Playlist  
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⚠️ Disclaimer:
This video is for educational purposes. All appliance and HVAC repair work should be done by a trained professional. Word of Advice TV is not responsible for any possible damages or injuries caused by the use or misuse of the provided information.
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