AC only blows warm air, cluch does not kick in only when I push the clutch on 1998 Volvo S90

in with a stick. Then when I shut the car off it does not kick in til I do it again.

Asked by for the 1998 Volvo S90
Compressor clutch field coil is getting a little weak! Have air gap adjusted a little closer to compensate!!! Your skill level?
1 more answer , 1 more comment
Have you checked your freon level. If it is low the pressure switch will not activate the compressor not the a/c fan I would start with that fist.
The freon is full.