Okay, system was fully done and retrofitted to R-134A by a professional shop, and works great------if the compressor has voltage applied direct. Cycles on/off, blows cold, car idles up, everything.

 

I have bypassed the belt protection system, I have checked the a/c and fan relays (good), pressure switch works (see cycle on/off) even jumpered the micro-switch under the drivers side dash, all to no avail. I'm at a loss as to why it isn't working normally.

 

Ideas?

Assuming that your car is an EA82, (There is not enough background info)

 

Yes, look for a Worn "Main" A/C Relay, under the Dashboard,

 

up above the internal Fusebox Area.

 

More info & Photos, here:

 

~► http://www.ultimatesubaru.org/forum/topic/87523-how-to-swap-the-old-roundie-relays-with-standard-bosch-relays/

 

That relay sends the Power signal to the Two relays outside,

 

on the engine's bay, for the Fan and the A/C Clutch.

 

Kind Regards.

Edited July 26, 201411 yr by Loyale 2.7 Turbo

Thanks Jeszek, I was thinking about that relay too, just dreading trying to get to it. For now I have a toggle switch wired in to the blue and blue/yellow wires on the main a/c relay so I can have air.

Thanks Jeszek ...

 

You're Welcome!