HVAC Furnace Short Cycling - How High Limit Switch Works

HVAC furnace short cycling and not staying on long enough.. There are a couple reasons why a gas or electric furnace can be short cycling. One of the most common reasons is that the high limit switch is tripping and that is what is causing the furnace to short cycle and struggle to get to the temperature set on the thermostat. In this video I explain what the high limit switch is, how it works, then I test it and do some experiements with a few switches, and lastly take them apart and see what is inside. It's an educational ride, enjoy!
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🎞️ Video References:

Furnace Overheating:
   • Furnace Overheating - 10 Reasons Why  
Furnace Not Heating:
   • Furnace Not Blowing Hot Air - Easy Fix  
Furnace #1 Problem:
   • Furnace Not Working - The Most Common...  
Multimeter Tutorial:
   • How to Use a Multimeter - With Exampl...  
Rollout Explained:
   • Furnace Flame Roll Out Switch Tripped...  
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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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