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1

Turn Furnace power OFF

video

2

​Jump wire on each limit or roll out switch one by one: 

​jump first one then turn power back on and test, keep jumping wire until you find out the one can make furnace continually work , replace the limit or roll out switch
video
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Picture
Picture

3

Replace the limit or rollout switch

video

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  • Main
  • DIY
    • Video List
    • Diagnostic Tool >
      • Start
    • Q & A >
      • Basic
      • Cooling
      • Condensation
      • Fan
      • Heating
      • Maintenance
      • Noise
      • Smell
      • Thermostat
    • Safety
  • Company
    • About Us
    • Contact
    • Services
  • Latest