[Rockintheholler]

Those with no experience or training on automobiles always argue with those that do.

The experienced also knows that refrigerant don't work in the cold. That leaves you out.

Don't know why you felt the need to compare what little you may know if anything about buildings to cars.

SON

Lol I'm certified in auto mechanics, diesel mechanics, HVAC, LP, AC and DC power, plumbing. I bet everything I own i know more about auto mechanics than you also. I bet money you have never built a car in your life! My 5 year old son did the entire top end of my 400 small block in my truck. I built my first motor when I was 13 I have forgotten more than you know!

 

[Lunchmeat]

Hey Snowwy! I don't know for a fact that it is bad, but have checked the AC pressures and the it was WAY high on the low pressure side. Thinking that someone (I'm not the original owner) may have significantly overcharged it, I removed some of the refrigerant to bring it back into spec. Since that didn't help and the compressor doesn't seem to be kicking on, I figured I would change out the High Pressure switch and see if it is an improvement. Cost of the part is low overall. I just didn't expect the location to be this challenging to nail down.

If the compressor isn’t on the pressure on high and low side should be the same

 

[snowwy66]

It takes time for static pressure to equalize though. It's not an immediate thing anymore like it was last century.

 

[chrisgilpin420]

There is no switch. Singular sensor, on high pressure side generally next to condenser. It is not a switch and the next person who calls it that needs to be slapped. It is a pressure sensor and the compressor is 100% ECM controlled. There is no magical wire connecting it to the compressor.

I hate mf like you,it’s a switch bud

 

[snowwy66]

Lol I'm certified in auto mechanics, diesel mechanics, HVAC, LP, AC and DC power, plumbing. I bet everything I own i know more about auto mechanics than you also. I bet money you have never built a car in your life! My 5 year old son did the entire top end of my 400 small block in my truck. I built my first motor when I was 13 I have forgotten more than you know!

ROFLMMFAO

 

[FirstCar]

Wow, so much drama !

If the compressor is off due to low refrigerant pressure, force charging makes the compressor cycle rapidly until the system is full enough to get it off of the low pressure trip, this is hard on the compressor ! A better way is to just jump the switch, if it is indeed a switch, if it is a ECM sensor as one suggested then that is not possible.

One may then try forcing liquid into the high side with the system off, never introduce liquid into the suction side of the system.

I believe I would look at all the things that may have it off line before just swapping parts hoping to get lucky.


Carrier tech certified
ASE 609 certified
EPA certified
and lots other certs/

YMMV