Volvo 2000 S70 A/C Clutch...Compressor

volvo
s70
airconditioning

#1

I turn on the AC the clutch engages for 10 seconds then disengages then engages again then rapidly disengages. Air from vents only gets slightly cooler.

Compressor was replaced almost exactly 3 years ago.

How does a normal AC clutch run?

Could it be low coolant? OR something else



thanks