A C Switches

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[pablochavez]

You are probably the only one on Youtube that described the a/c pressure switches. And you make it so simple. Thank you so much. Awesome teacher. You just answered so many questions that I had.

[juancarloscuevas]

old school; from the basic principles to the schematics. Simply one of the best I've seen around.

[Kris-]

Awesome video explaining how system and switches work. You nailed it. Important takeaway - if your relay is clicking, all pressure switches and VCM are working correctly. This is time saver.

[charleswoodcheke]

This is by far is one of the best video tutorials! I have been a diehard DIYer all my life and have been trying to trouble shoot my ac compressor suddenly not get any power. This has solved that issue. Thanks so much for the help.

[michaelmartinez]

This has to be one of the very best technicians who posts videos like this on You Tube!!! I have seen several videos He has posted and His methods are really good...

[noelguerrero]

I used to wire industrial control panels. Your explanation regarding normally closed/normally open pressure switches is very clear. In our schematics we sometimes show the contacts at rest. What we do is indicate on the schematic that the normally closed switch is closed when pressure is above ### and the normally closed is open above ### pressure.

[alsanch]

One of the best AC trouble shooter videos I've ever seen. Exactly what I needed to continue trouble shooting my 1977 F-350 Diesel AC problem. Thanks, look forward to other videos.

[dannyburdette]

This is the best video on YouTube explaining the 2 switches. I'm an electrician so this makes perfect sense and for anyone that doesn't have a electrical background just follow this man's instructions step by step and you will be able to troubleshoot your issue. If you cant read schematics dont sweat it and just ignore that part of the vid. Great job to the man that created this vid.

[ARandomPersonAgain]

One of the best ac videos on here. Thank you for explaining lingo along with terms. AWESOME!!! Thanks again!

[LBurou]

Thank you for an excellent video! You gave me courage to tackle my A/C issue. I found that when briefly bypassing the low pressure switch, the compressor did turn, indicating a need for a charge and probably a leak fix. Five stars from me today!!! :)

[deankay]

Nice explanation and for using the description of “Interrupter” as well. Having the light and DMM are great visuals for those who learn better this way. I will finish the last few minutes but the P/S switch also effects the circuit. Depending on the manufacture, model and year, but the A/C compressor is interrupted and shut off at high speeds. This can be done using an external switch on the gas pedal, speed sensor at the compressor clutch with steel / iron reluctor and Hall-Effect switch or PM generator that produces an A/C voltage signal, buffered by diodes & electronics shutting the compressor off. Speed or the drivers request for speed reduces damage to the compressor during high RPM’s and helps with performance or fuel economy both during certain conditions.
It is nice to see a professional tutorial on the subject. I added info the would make the entire subject harder and perhaps loose some viewers.
ASE Master Tech since 1978 - Retired

[JOWAYAYJAN]

This was the most informative information I have received, and I have gone through hundreds of them here on youtube, you predicated what the other gentleman spoke, you both are on the same page. I did what you and he said and it works, 1988 Lincoln Continental MK VII LSC. Thank you a thousand times.

[billb.]

I just want to thank you for all the videos you do; they really help a lot of people.

[anonymoususer]

This helped me figure out a problem in my wiring that I'd be struggling with for a few days. The explanation of the wiring diagram is what did it. Thanks for the thoroughness!

[navyclock]

You video worked. My compressor was clicking on and off fast. Changed the low pressure switch and it just unscrews without loosing the freon. Then it let me add freon. I did jump the switch for awhile to get it to suck up the freon. Thankd

[ddau]

Well done! Bringing the basics to the layman! Great video👍

[sergiotisnado]

Can't make it any more clear than you have explained. Great video.

[wilsonbaird]

I am a former ASE certified mechanic, and, in my modest opinion, this guy could very well charge for this teaching on the matters! Very good!

[mobilemechman]

This is exactly the sort of video that I crave (most of yours are). Please keep the in-depth videos coming. I always take something from your videos that help me in my job (if!). A very sincere thanks to you sir!

[dobermann]

Smart men! Thank you. Is was very useful for me. Videos like this should be underlined as very well designed and performed educational videos. Thank you again for your time and efforts!