no power to A/C compressor

[npresley]

I have a 98 B2500 2wd, reg cab, and reg bed. After 2 yrs & baby on the way, I've decided to get the A/C going again. The lines are a couple of years old, and I replaced the 2 inline pressure switches. The fuse has power across it and the switches are getting power. The relay is good, but I am only seeing .03 volts at the compressor. What am I missing? Thanks for the help.

-Nathan

 

[Earl43P]

Probably low on refrigerant.

Disconnect the low pressure switch and jumper its (harness) connector pins together (paper clip works). If compressor engages, you are low on refrigerant.

 

[npresley]

I did that last night and the voltage was still .03V to the compressor. I jumped both switches individually and together. I do need to refill the system, but I can't get power to the compressor.

 

[npresley]

Is there another switch or relay I am missing?

 

[adsm08]

May be a bad wire to the compressor.