Wow- the most complete course and hands-on explanation of how the HVAC really works, Russ. Thank you very much indeed and please keep on producing these videos for us hobbyists. This is a phenomenal source of information. All the best!
Russ, that was an awesome presentation! Wow, you don’t give yourself enough credit, you are a genius! As an engineer, I can read the schematic and apply Ohm’s Law, but I could never have put it all together like you have done and make it so easy to understand. Your presentation helps to explain how the engineers designed their hvac system to function. Really enjoyed it, thank you.
Thank you Jeff, I really appreciate an engineers point of view. Nic also did a great job in the editing, adding the window in the video. I hope to do more of this kind of thing so owners that like to work on their own cars can grasp how it works, and what could go wrong. Thank you for being a big part of this whole process.
Superb video. Really appreciate the time to show the full workings which is exactly what I needed. This has confirmed an issue I have with my system and wonder if you may be able to answer? I have constant hot air blowing in my face. I took a look and the clip had snapped so I replaced this to secure the metal rod. When turning the ignition on I see the rod for the heat moves slightlty and seems to stop and return to full heat setting. My temparature knob when moving through the degrees doesnt seem to move the arm at all?
Great video, I really like the detailed explanation and it's especially helpful to see the system out of the car. I tried the pleated air filters that Only944 makes, but they seem to really restrict the airflow so I don't get a lot of air to the footwells. I wonder if the seals around the flaps inside need to be replaced, if that would help it.
Thank you! I didn't know someone was making filters for these. That's great. As far as lack of air to the footwells, it's possible the foam seals are leaking inside the box. We're going to do a complete teardown and see what's inside, also clean and reseal all of the doors. Also, check the servo travel and make sure they are moving all the way to the stops. Stay tuned for more!
Amazing video.. Thank you for the video, it helped me understand the system well. I am in the process of fixing my AC system atm and had discovered that the AC switch did not activate the AC compressor clutch. After taking apart the control unit I found that the trace on the PCB going from the AC switch to pin 8 on the control unit A connector was burned. - fixing that trace activated the clutch again. Just wondering if you have any theories of how the trace burned in the first place? I've read that a dying compressor clutch will increase the resistance, or possibly it could be a short somewhere.
Oh yes, something did cause that. Sometimes when there is work done on the engine, the compressor clutch wire gets pinched into a bracket or something, that's one possibility. But most likely your clutch is drawing more current than it should. The resistance can change with temperature and vibration. The winding of wire that makes up the electo-magnet has a very thin coating of an insulating varnish. It can wear away exposing some of the winding to ground. You can put an ammeter on the wire to the compressor and see how much current it's drawing, watch it as it runs and heats up, the current should be close to 4amps usually less.
@@EuropeanAutoCraftStudios thank you so much for the tips. That will be indeed what I do - I will go over the wiring and compressor before it blows itself up again
Wow- the most complete course and hands-on explanation of how the HVAC really works, Russ. Thank you very much indeed and please keep on producing these videos for us hobbyists. This is a phenomenal source of information.
All the best!
Russ, that was an awesome presentation! Wow, you don’t give yourself enough credit, you are a genius! As an engineer, I can read the schematic and apply Ohm’s Law, but I could never have put it all together like you have done and make it so easy to understand. Your presentation helps to explain how the engineers designed their hvac system to function. Really enjoyed it, thank you.
Thank you Jeff, I really appreciate an engineers point of view. Nic also did a great job in the editing, adding the window in the video. I hope to do more of this kind of thing so owners that like to work on their own cars can grasp how it works, and what could go wrong. Thank you for being a big part of this whole process.
Really very good explaint 😊
Helps a lot to understand this System.
Regards from Austria
Thank you, I really appreciate you watching and being a part of our series. Stay tuned for more!
Thanks for another great video
Thank you Kenneth, I always appreciate your kind words!
Superb video. Really appreciate the time to show the full workings which is exactly what I needed. This has confirmed an issue I have with my system and wonder if you may be able to answer? I have constant hot air blowing in my face. I took a look and the clip had snapped so I replaced this to secure the metal rod. When turning the ignition on I see the rod for the heat moves slightlty and seems to stop and return to full heat setting. My temparature knob when moving through the degrees doesnt seem to move the arm at all?
Great video, I really like the detailed explanation and it's especially helpful to see the system out of the car. I tried the pleated air filters that Only944 makes, but they seem to really restrict the airflow so I don't get a lot of air to the footwells. I wonder if the seals around the flaps inside need to be replaced, if that would help it.
Thank you! I didn't know someone was making filters for these. That's great. As far as lack of air to the footwells, it's possible the foam seals are leaking inside the box. We're going to do a complete teardown and see what's inside, also clean and reseal all of the doors. Also, check the servo travel and make sure they are moving all the way to the stops. Stay tuned for more!
Great video! You have another subscriber!!!
Thanks Tim!! The things we have planed for our future are going to be epic!
Amazing video.. Thank you for the video, it helped me understand the system well.
I am in the process of fixing my AC system atm and had discovered that the AC switch did not activate the AC compressor clutch. After taking apart the control unit I found that the trace on the PCB going from the AC switch to pin 8 on the control unit A connector was burned. - fixing that trace activated the clutch again. Just wondering if you have any theories of how the trace burned in the first place? I've read that a dying compressor clutch will increase the resistance, or possibly it could be a short somewhere.
Oh yes, something did cause that. Sometimes when there is work done on the engine, the compressor clutch wire gets pinched into a bracket or something, that's one possibility. But most likely your clutch is drawing more current than it should. The resistance can change with temperature and vibration. The winding of wire that makes up the electo-magnet has a very thin coating of an insulating varnish. It can wear away exposing some of the winding to ground. You can put an ammeter on the wire to the compressor and see how much current it's drawing, watch it as it runs and heats up, the current should be close to 4amps usually less.
@@EuropeanAutoCraftStudios thank you so much for the tips. That will be indeed what I do - I will go over the wiring and compressor before it blows itself up again
how do you test the ballast my fan only works on #4 speed