Furnace Error Codes Explained

Furnace error diagnostic codes explained. If your furnace is blinking or flashing an error code and you are not sure what it means, this video is a great place to start. I go over the most common troubleshooting error codes a furnace may put out such as flame not sensed codes, pressure switch error code, ignition lockout, primary limit switch code, etc. No matter how many times it blinks (2,3,4,5 times..), this video will set you on the right path to figure out what the problem is and how to fix it.
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🕒 Time Table:
0:00 Furnace Error Codes Overview
1:49 Soft and Hard Lockouts Explained
3:03 Flame Not Sensed Error Codes
4:16 Ignition Failure Error Codes
5:15 Limit Switch or Flame Rollout Open
7:07 Pressure Switch Open Error Codes
8:31 Advice For When You Get Pulled Over
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👇 If you are seeing an error code that sounds like any of the following, refer to the videos below:
Low Flame Current
Low Flame Signal
Flame Signal Gone
Lost Flame Sense
Ignition Proving Failure
Ignition Lockout
Failed to Sense Flame
Flame Sensed When no flame should be present

Most Common Furnace Fix: https://youtu.be/3Jonl_TLkpE
Flame Sensor Troubleshooting: https://youtu.be/-QKHz1Mv9Ew
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Check Igniter
Ignition Failure
Burners Failed to Ignite
Lockout due to failed ignition
Hot surface ignitor sensed open

How to Check and Replace Ignitor: https://youtu.be/1bRsFAMgZRQ
How to Manually Light a Furnace: https://youtu.be/-bMz1En0DSg
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Limit Lockout or Flame Rollout Lockout
Limit Switch Open
Limit Circuit Open
Open High Limit Device
Main Limit Open
Primary Limit Switch Open

How to Replace Furnace Filter: https://youtu.be/uPaZvHp4L2Y
10 Reasons Why Furnace Overheats: https://youtu.be/3ZPmltTR5S4
High Limit Switch Stuck Open: https://youtu.be/pJzP1jzYPqg
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Pressure Switch Open
Pressure Switch Failed Closed
Pressure Switch Error
Pressure Switch Stuck Closed
Pressure Switch Stuck Open

10 Pressure Switch Problems and Fixes: https://youtu.be/Zax02itYHkU
How to Troubleshoot Pressure Switch: https://youtu.be/MWn55b8DXO0
How to Bypass Pressure Switch: https://youtu.be/RMAzPEgTwVc
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👍 Other Video Mentions:
Furnace Error Code Basics: https://youtu.be/QJAMWlJ0tbk
How a 2 Stage Furnace Works: https://youtu.be/iLRHofwyxm4

And For Many More Furnace Repair Videos, Visit My Furnace Playlist:
https://www.youtube.com/playlist?list=PLK8tZPlovA8BJJ_weFseSjQWUvB2FFII2
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For More Repair Videos:
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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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