HVAC Troubleshooting Repair Videos

Below we have quick links to the many different HVAC troubleshooting and repair videos that we have on our site! Click on the link and it will take you to the specific page with the video. I hope this will allow you to quickly find out how to troubleshoot and repair your furnace, air conditioner, or humidifier. If you have any questions please email us anytime. Our email address is We would Love to Help You Out and Have Your Business!

  1. My Air Conditioner will not cool my house? 20 Reasons Why. (Video)
  2. Problem: My AC unit will not turn on or run. What could be the problem? We explain and show 10 common problems with 1 YouTube Video.
  3. Question: Do I really need a new AC Unit? (With one Video)
  4. Air Conditioner Contactor Replacement (Video)
  5. Air Conditioner Condenser Fan Motor Replacement (Videos)
  6. Air Conditioner Capacitor Testing Troubleshooting (Videos)
  7. Problem: How can I find my air conditioner’s run capacitor specifications if the ratings are worn off? My capacitor is so rusty that I can not read the ratings! (With one YouTube Video).
  8. Problem: My heat pump defrost control board is bad. My AC does not work! Can I bypass the defrost control board to get cooling? (With 2 YouTube Videos)
  9. Problem: My heat pump unit is frozen up in the wintertime. What causes it to freeze up? Does this hurt the unit? Does this hurt my electric bill? (With 4 YouTube Videos)
  10. Question: Why does my heat pump smell musty when it defrosts? What is Dirty Sock Syndrome? (With One YouTube Video)
  11. Problem: Please explain the refrigeration cycle that is used in air conditioners and heat pumps? (With one YouTube Video)
  12. Problem: My AC Will Not Turn On. What could be the problem? (With one DIY YouTube Video)
  13. 10 Reasons why my AC Contactor will not pull in. (With one DIY YouTube Video).
  14. Air Conditioner Maintenance. A DIY Guide (Videos)
  15. Question: What can I do to make my air conditioner or heat pump last longer? Do you have any maintenance tips? (With 1 YouTube Video).
  16. Air Conditioner Troubleshooting (Videos)
  17. Question: Where should I look for refrigerant leaks on my AC or Heat Pump unit? We have leaks every year! (With 1 YouTube Video).
  18. Question: What are the best furnaces and air conditioning systems that you would recommend? (With one YouTube Video)
  19. Air Conditioner Recharge (Video)
  20. How do I use and read a refrigerant gauge set? How do I check my AC or Heat Pump Charge? (With 3 YouTube Videos).
  21. Air Conditioner Compressor (Video)
  22. Why is my Air Conditioner Contactor going out so often? (With one DIY YouTube Video).
  23. The Best HVAC Informational Youtube Video Channel that I have ever seen! The ACservicetech Channel! Loaded with lots of great HVAC Videos!
  24. Aprilaire 2200 2400 Filter Upgrade Kit (Video)
  25. Aprilaire 500 Humidifier Maintenance Video.
  26. Aprilaire Model 600 Humidifier Maintenance Video.
  27. Aprilaire Fan Powered (Aprilaire Models 700, 700M 760, 768) Humidifier Maintenance Video.
  28. Dual Capacitor Troubleshooting Checkout Procedure Video.
  29. Why Air Conditioner Capacitors Go Out so often. (With one YouTube Video)
  30. Problem: Where are my gas furnace parts located? What are the functions of the gas furnace parts? (With one YouTube Video)
  31. Problem: What is the sequence of operation for a gas furnace? Why is the sequence of operation important to know? (With one YouTube Video)
  32. Problem: How do I test my gas furnace’s rollout switches, limit switch, pressure switch, and flame sensor? (With one YouTube Video)
  33. Problem: Why does my furnace go off on limit so much? Why do I have to replace my furnace limit so often? (With two YouTube Videos)
  34. My furnace will not ignite the gas! How do I check to see if I have a bad furnace gas valve or a bad control board? (With two YouTube Videos)
  35. Furnace Blower Motor Replacement (Video)
  36. Furnace Control Board (Video)
  37. How to troubleshoot a furnace’s control board. (One YouTube Video)
  38. How to use a multimeter to troubleshoot heating and air conditioning problems. (With two YouTube Videos)
  39. What are the top 10 furnace troubleshooting problems? (With one YouTube Video)
  40. Problem: My gas furnace will not start. Nothing happens. Why will my gas furnace not start? (With one YouTube Video)
  41. Problem: My gas furnace will not heat what parts might cause this problem. (With one YouTube Video)
  42. Question: How do I clean the burners on my gas furnace? (With three YouTube Videos)
  43. Question: Can I wire up my furnace to run off a generator in an emergency situation? (With one YouTube Video)
  44. Furnace Gas Valve Replacement Video.
  45. Gas furnace ignitor replacement (Video)
  46. Gas Furnace Limit Control (Video)
  47. Gas Furnace Troubleshooting (Video)
  48. Gas Furnace transformer troubleshooting Video
  49. Heat Pump freezing and defrosting. (Video)
  50. Honeywell Smart Gas Valve Ignitor and Flame Sensor Troubleshooting (Video)
  51. How Does My Electric Furnace Operate? How do I Troubleshoot Electric Furnace Problems? (Two Videos)
  52. How a Heat Pump reversing valve works (two Videos)
  53. How to test and troubleshoot gas furnace pressure switches.
  54. How to troubleshoot a limit switch on a gas furnace Video.
  55. How to Troubleshoot and Test Furnace Hot Surface Ignitors Videos
  56. How to clean out a 90% +high efficiency furnace condensate drain line properly. (One Video)
  57. Problem: Furnace will not ignite. Ignitor will not glow. (Two Videos)
  58. Problem: I have a bad igniter is there any way to light a gas furnace manually? (Video)
  59. Problem: Furnace comes on, doesn’t run long then shuts off. Will work if the thermostat is turned way up. (One Video)
  60. Problem: Furnace or Air Handler Blower Motor will not come on? (With two really good YouTube Videos)
  61. Problem: Why does my gas furnace short cycle so much?
  62. Problem: What is the sequence of operation of my 80% gas furnace? (One Video)
  63. Problem: Will the pressure switch correct my water drainage problem? (Two Videos)
  64. Problem: What to look for when a capacitor is bad? My unit will not do anything! (Two Videos)
  65. Problem: Air Conditioning outdoor condensing unit or heat pump unit will not shut off. (Video)
  66. Problem: Is it Normal for my heat pump to have frost on the outside? (Video)
  67. Problem: Air conditioner is freezing up. Seeing frost or ice on the suction line (black insulated line) (Video)
  68. Problem: Air conditioner outdoor unit will not come on. Nothing happens. (Video)
  69. Problem: Air conditioner or heat pump compressor will not start. Hear an UGGGG sound. (Video)
  70. Problem: Outdoor air conditioner condensing fan motor has stopped running. (Video)
  71. Question: Is it OK to allow my HVAC contractor to by-pass my air conditioner’s high-pressure switch? (With one DIY YouTube video)
  72. Problem: Electric furnace heat will not come on or the fan blower will not come on. (Two Videos)
  73. Problem: The outdoor air conditioning unit is running but the indoor furnace blower will not run. (Two Videos)
  74. Problem: I purchased a flame sensor from you for my Goodman furnace. The new flame sensor did not fix the problem. (Two Videos)
  75. Problem: My air conditioning unit blows the circuit breaker after it runs for a while. What could be the problem? (Video)
  76. Problem: How do I wire up a dual capacitor that I purchased from you? (Video)
  77. Problem: Outdoor fan will start briefly but the compressor does not. Circuit breaker trips in a second.
  78. Problem: I changed out my control board and my furnace blower motor continues to run constantly. (Video)
  79. Problem: My 24-volt transformer continues to burn up. This is the second transformer. What could be the problem? (Video)
  80. Problem: How do I wire up my new thermostat? What do the wire colors mean? (Video)
  81. Top 10 Thermostat Related Problems with Heating and Air Conditioning Systems. (With one YouTube Video)
  82. Top 12 Problems and Mistakes when Installing or Replacing Thermostats. (One YouTube Video)
  83. How do I bypass my thermostat to see if my thermostat is bad? (With one YouTube Video)
  84. Problem: Will a compressor super-boost help start my AC powered by a generator? (Video)
  85. Problem: My AC heat pump unit makes a humming noise even when it is not running? (Two Videos)
  86. How to install an air conditioner compressor crankcase heater. (video)
  87. Problem: Why is water leaking on my floor with the air conditioner on? My service man says I need a new evaporator coil. (Two Videos)
  88. Problem: What could be causing my indoor coil to freeze up? (Two Videos)
  89. Problem: Why does my furnace air conditioner have poor airflow? (Video)
  90. Problem: Will a larger blower motor help my air conditioning? My air conditioner does not seem to be blowing air very hard. (Video)
  91. Problem: My Air conditioner’s contactor will not engage. I am not getting 24 volts to the contactor to make it engage? What could be the problem? (Video)
  92. Problem: Why I am not getting 24 volts to the contactor? Where does the 24 volts come from? (Video)
  93. Problem: Why does my furnace rollout switch have to be reset so often? Why do rollouts have different temperature differences? (Two Videos)
  94. Problem: Gas furnace will not ignite the gas to produce heat for our home. What could be the problem? (Two Videos)
  95. Problem: What to look for when a capacitor is bad? My unit will not do anything! (Two Videos)
  96. Problem: How do I wire up a dual round capacitor? (Two Videos)
  97. Tricks for removing a condensing unit fan blade (Video)
  98. Problem: My heat pump’s compressor burnt out after only 8 years! Why it is important to have your system’s static pressure checked! (With two YouTube Videos)
  99. Top 10 Air Conditioner Service Call Problems (Video)
  100. Problem: How do I use a multimeter to test and troubleshoot my furnace and air conditioner? (With one YouTube Video)
  101. Problem: Please explain how to read air conditioner refrigeration gauges? (With one YouTube Video)
  102. Problem: My furnace needs a new control board. Is there any way I can bypass the control board so I can run my air conditioner? (With one YouTube Video)

You Can Search Our Site for More Troubleshooting Problems with Answers, Heating, Air Conditioning Parts and Supplies in the Google Search Box Below:

13 thoughts on “HVAC Troubleshooting Repair Videos

  1. Damn informative!! Thanks for sharing this great list of videos with us. This is a great post, and something I think needs to be communicated and shared more often. I was having some issues with the heating of furnace in my Toledo house and pros at Bluflame helped me to solve the issue. Cheers!!

  2. I’m really pleased to see a web site like yours willing to help with repair information.I do the same myself on Facebook “Free Appliance Repair Help”.When I need a part I will definetly order from you.

    1. Thanks Anthoney! Glad to hear that you try to help others with appliance repair! When I need help with appliance repair I will keep your Facebook page in mind. God bless you and your family. Steve

  3. Hello,

    My gas furnance is not turning on while in defrost cycle of Heat pump is on. I have Rheem 90 plus gas furnance . and when dfrost cycle is on it make my home cold.

    could you tell me what need to look at.


    1. Hi Vishal!
      You should look at your low voltage wiring that goes to your defrost board to make sure everything is tight. The defrost board as you know is supposed to turn the gas heat/aux. heat on when in defrost mode so that you do not feel cold when in defrost mode. If you do not find any loose wires then I would suggest replacing the defrost board. If you would like for me to look up parts then please send me your heat pump’s model number and I will be glad to try and look it up. Our email address is I hope you have a great day! Steve

      1. Not all units have aux.heat kick on during defrost,as a matter of fact quite a few gas furnace will not and do not have aux heat when in defrost.Chck your service/installation manual for your pati cular model.

      2. Hi Robert! Thanks so much for the comment. I am sure that you are correct, but here in Louisville, Ky. all the heat pump units I have worked on have an auxiliary heat kick on during defrost because it would feel like the heat pump is in air conditioning and blow really cold air while in defrost without some kind of auxiliary heat source to kick in during defrost. Thanks so much for your input. Steve

  4. Hello, I replaced my dual capacitor on my outside unit. After turn the unit on, I heard a popping sound and a puff of smoke coming from the outside unit. Did I short out my motor or my compressor?

    1. Hi Gregory! If you wired the new capacitor up wrong then it could have damaged the fan motor or compressor. Hopefully, you paid attention to how your old capacitor was wired and could see that the new capacitors have Herm, Com and Fan labeled on the top. Most of the time capacitors will not harm anything unless they are wired wrong or sized wrong. I hope you can easily find and fix the problem. Steve

  5. Hello:

    This is Sheila at E R Mann Heating and Cooling in Lee’s Summit, MO. I am building our own website and would like to put a link to your website for people to get DIY tips and/or order parts from you. Would this be okay with you?

    Sheila Nanninga

    1. Sure! Yes, we would like for you to have a link on your site to help other people out. Thanks for asking. I hope you have a great day! Steve

  6. Aprilaire Model 760
    Fan blade spins freely. When Humidifier is operating motor makes rotating metallic clicking noise.
    What is your suggestion ? Do I need to replace the 4237 motor ?
    Thank you

    1. Hi Fred! You might look to make sure the Aprilaire 4237 motor mounting bushings and nuts are good and tight and the fan blade is tight. I would suggest spinning the blade to see if it is hitting anything while you have the two halves separated. If you have any other questions I would suggest that you call Aprilaire customer support at: 1-800-334-6011. They are good with helping people solve humidifier problems. Steve

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