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Probably has lost exciter current. It can be restored : take wires from a 12 volt battery, use something like 16 or 18 gauge, and with generator running insert bare ends into the AC outlet - one to neutral and one to hot (doesn't matter which is positive or negative). Insert and remove quickly. There should be a flash and current restored. If not, do it again until you get that flash. Once you have that, the exciter current is restored and you will now have power. The reason for the light gauge wires is if you are too slow to remove the wires and AC is restored while still connected to the battery, the wires themselves (or one of them) will burn out and protect the battery from AC current. So be careful! I assume all breakers on the unit are on?
Could be lost exciter current. This is how to restore it - Connect 16 or 18 gauge wires to a 12 volt battery. With generator running, insert bare ends of wires into AC outlet - one to Hot, the other to Neutral. Insert and remove quickly. There should be a flash and power will be restored. If not, repeat until you get that flash and output current restored. Using light gauge wires is so that if you are too slow to remove them once AC is restored. they will burn out before the battery suffers from the AC incoming. Be quick and be careful.
Could be some of the overload protection: low or high pressure,
Check for a clogged filter or dirity condensor or evaporator, condensor or evaporator fans not running.
There are two pressure switches installed in the tubing for the AC system . One stops the compressor when there isn't enough freon and the other one stops the clutch when the hi side pressure is dangerous. Put a can of freon in it without the engine running. That should be enough to restore power to the clutch.
Motherboards can be configured to react to the application of AC power in several ways:
* always automatically start-up as soon as AC power is supplied;
* never automatically start-up when AC power is supplied;
* if on when the power stopped, come on;
if off when the power stopped, stay off.
Leave the auxiliary-connector NOT connected, if your computer works without it.
Enter BIOS SETUP, and change the 'POWER' settings, if you want the computer to stay "off" when AC power is restored.
Right after you press the start (power on) button for the notebook, tap the F9 key about once every second (do NOT hold the button down, as this will cause the machine to think there is a problem with the keyboard, and generate a 303 KEYBOARD ERRER) to take you into the system repair subroutine. There should be an option for "Factory Restore", however, you'll may need to dig a little to find it. Once you select the factory restore option and the process begins, DO NOT interrupt the restore process at ANY time!!! (also, be sure the notebook is plugged in to an AC outlet, as battery power may not be sufficient for this task, and the restore process goes fast on AC power anyway.
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