We are trying to locate the AC Compressor Relay. My AC is blowing hot air and we have purchased the 1234-yf Freon but due to the compressor not turning we can’t add the Freon. Can anyone help with the location of the relay? After checking the owners manual and the fuse box under the hood none of the fuses say they are for the compressor.

 

1234-yf refrigerant? Then pretty new vehicle. For your lack of AC clutch engagement (your issue) to be refrigerant loss in so few years, would be a pretty big leak. I'd absolutely check pressure before adding anything, and if pressure is adequate to activate a pressure switch, then I'd look into an electrical reason for the compressor not engaging.

1234-yf is quite expensive !!

 

Forgot to list year of vehicle. This is for a 2017 Chevy Suburban LT

 

should be listed at kr29 in the underhood fuse box. if you can't find it...it may be built into the circuit board and no removable.

this method is not an accurate way to charge the system.
+1 for performing a leak check.