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make sure battery has a full charge and battery connections all good. If battery is down use a charger and get it charged up. Was the charging system tested on the vehicle? Everything off, key off, check voltage at generator bat terminal, hot all the time. You can use test light to check for voltage. If no voltage, have to check fusible link and that wire circuit. See the charge indicator circuit, that is excite voltage, w/o that, the generator won't charge. Just my opinion. The diagram may not be large enough to see wire colors? I'll check on location of that fusible link, you could track the wiring circuit.
What is the model year? I'd have to look at wiring diagram to see what that fusible link fuse controls? Maybe there is a short to ground, somewhere? I can't tell you much w/o looking at wiring diagram?
You connect the two hot wires from your power source to the two lugs in the. On the other side of the disconnect you connect the two hot wires to the A/C unit to the other two lugs. You tie the neutral wires (white) together and insulate them. You ground the ground wire to the box and run a ground wire to the AC unit.
So, you should have a red, black white and ground wire on the supply side to your disconnect. The red and black are your hots from your main box to the disconnect. They go on one side of the disconnect. The units red and black go ont other side. You connect the neutrals and ground it and you are in business.
Don't guess, because you are fooling with 220 Volts AC which will knock you silly.
Hi, Does not matter which way the fuses go.... The contacts are bad and will cause the fuses to blow sooner because they are heating up... It will not cause a fire, but you should have the disconnect replaced or you will have continuous problems...
If you use a white wire to carry a 120 Volt line it would have to be taped with either black or red tape both at the breaker box and your fuseable disconnect so the solution is to use the black and the red wire into your curcut breaker, the white and the bare ground both tie into the grounding post at the circut box and at the fuseable cut off, Yes the fuses are neccisary per code.. to eliminate a short or fault from traveling all the way back to the breaker box.. often times found inside the building the fusible pullout is attached to. check your local codes and regulations for more specific details.
Possibly a fusible link somewhere in the circuit has burned through and disconnected the circuit.A wiring diagram would be needed to look for the location of any fusible links Ohms check the wires involved in the alternator charging circuit to verify continuity.
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