I replaced the fuses but unit still won't turn on, I turned off all of the breakers to try and reset, what else do I need to try to reset the unit

You need a digital multimeter to diagnose what is wrong with it. You need to know if you have control power (24 volts) and power to the various components. You could also have a safety that popped open and all you need to do is to reset it. Some have a red button on the outside unit that will open if the coils are dirty. Here are some diagrams: https://dl.dropboxusercontent.com/u/8010163/AC%20Wiring%20Diagrams.zip
And manuals: https://dl.dropboxusercontent.com/u/8010163/How%20to%20use%20Test%20Equipment%20Service%20Manu al.pdf
https://dl.dropboxusercontent.com/u/8010163/How%20to%20Diagnose%20and%20Fix%20Everything%20Ele ctronic.pdf