AC kicking in and out on 2000 Chevrolet S10

The AC compressor is kicking in and out, even when the heat gauge is set to the highest heat point. What are the common causes?

Asked by for the 2000 Chevrolet S10
The common cause for this is not having the require freon in the system having too much will make this happen having too lil will also trigger this you have to fill your AC system to the manafacturers spec