Air cond. compressor doesn't turn on Is there a separate switch?

No, the compressor will NOT cause these fuses to blow. You have a SHORT in your electrical system. you have a HOT wire getting into the Ground for that system

The problem is the blower motor speed control resistor, it is located near the blower motor in the housing. I exchanged mine and it works like a charm now.

Bad compressor this work also when heater is on. To check have someone turn on ac/heater make sure clutch on air comp is turning. If not comp clutch is frozen

the switch protects compressor from turning on when freon is low. add a charge and leak detector to system, thats why its not blowing cold when turned on manually

Well yes, there is a separate switch. If the A/C system is low on freon, the low pressure switch will keep the compressor from engaging to save it from damage due to no lubrication. The freon helps with lubricating the compressor. Get you a can of 134a from the parts store and add a little to see if the compressor will come on. It should come on before one can is used. Now for the freon to be gone means you have a leak. So if the can gets you cooling, try to find the leak so you can stay cool.

The air conditioning system need to be fill with gas,there is not enough gas in it that why it is doing that,Hope that help you,If there is not enough gas ,when you switch on the ac button it turns the ac compressor and cut off immediately because there is not enough gas.

The compressor is service as one unit. remove the belt and shack the pully if it wobles the compressor bearing is toast.

You may need a new compressor.

does the AC compressor run under the hood? if not u have lost the charge out of the system and u have a leak..

AC's have a low freon switch that shuts off the system to protect the compressor in the advent that you have a freon leak have the system checked for a leak