A compressor won’t start if it is not in proper working order. The engine that powers a compressor has a filter, a spark plug and an ignition coil that must all be working properly to start the engine. You will know that your engine isn’t ready to start by looking at the gauges on the dash. There will be green lights for idle, blue lights for low battery, red lights for high battery and black lights indicating the position of the starter. If you notice any of these lights flashing then you have a problem with the starter. The starter can be difficult to replace and can cost a lot of money, so you want to check and make sure the starter is working properly before you run your car into any trouble.
One of the things that can cause the starter to not start is a blown fuse. The fuse will blow out if the starter motor fails to ignite. In this case the alternator will kick in to give power to the engine and the battery to start the engine. This can cause your car to stall or will cause the battery to drain because the alternator is giving way. To check for a fuse, you can look at the circuit breakers and check for wires that may have shorted out. If the fuse is blown, you should check to see if the alternator has been turned on and if so turn the power off to the engine and try to restart it again. If there is no fuses and the alternator has been turned on, then the alternator will need replacing and will most likely be an expensive procedure.
If you have a blown fuse and the starter still won’t start, you can try unplugging and plugging both the ignition and the fuel lines. It may be easier to just plug both the gas line and the battery line and use a wire to test the power to the starter. If the wires are shorted out then you will want to turn the power back on to the engine. If you don’t find the wires shorted out then you may need to replace the spark plugs.