A/C compressor not turning

[gto4evr]

Hello.

I've got a 98 explorer V8 and no A/C since I bought it a few months ago. I picked up a can for recharge but noted that the compressor's not spinning when the A/C switch is engaged. I can turn the clutch by hand and it feels normal, don't see anything wrong with any fuses. I see some electrical switches mounted on the refrigerant lines. Is there some kind of low pressure cut off that when it's too low on refrigerant the compressor won't pump? Do I have to jumper the switches? There's no point in cracking the can open if the compressor's not spinning to pump it in I'm assuming.....

Any advise would be greatly appreciated!

 

[Glacier991]

If the charge is too low, the low pressure cutout on the accumulator (near the passenger firewall) will prevent the compressor from engaging. Lots of good info in the above stickies, read grasshopper.