APU A/C Compressor Replacement?

I think I said before I was going to check the fuses, but I forgot about them. Good thing you mentioned it, and lilillill said the fuse number. Thanks!

 

I think it will work now, but I need to go fetch a 7.5 medium size fuse. I have a 7.5, but it’s too small! I’ll probably get some more freon and redo a vacuum. They say to vacuum for like 45 min, but my vacuum pump manual says 10 min. Which one is correct?

 

Should I drain the compressor oil too as it may have now been contaminated? I have some PAG-46 on me (8 oz). My compressor does not specify the PAG number to use. It just says 180cc. My old compressor says PAG-46 180cc.

I was checking the other time for the meaning of cc, and apparently it’s just a measurement that converts to 6.09 oz.

 

UPDATE—

I regret to inform that I succeeded once again! Hahaha. Yeah, it was just the fuse. I reused the PAG oil, and did a vacuum. I found some Thermo King instructions for the Tripac Evolution where they say to use the high side to add the freon. Then Koon Trucking instructional YouTube video also says to use the high side. Now I actually used the low side, and it worked. I do not have a Tripac Evolution, just the old Tripac version. The TK instructions also mention to partially charge the compressor with freon before starting the engine.

The APU is running and cooling fine, but I think I have bubbles in the drier sight glass. What happens if I leave it like that?