Decided to put the AC on one day but nothing but warm air, observed compressor didn't cycle

Maintenance/Repairs
1

…any thoughts why this would suddently occur and why? vehicle is a 98 tahoe.

2

The AC system is probably low on refrigerant. If it is, there’s a low pressure switch in the system that prevents the compressor from operating so the compressor doesn’t get damaged from lack of oil.

Tester