1993 Jeep Wrangler Fuse #12 melted and that's the one that goes to the heater and A/C do i replace the fuse or get professional help?

check you manual, fuse box cover and clean the contacts on the fuse box and where it plugs in

May help - fuses supply power but also needed is earth return to battery. This is usually black wires running from device to the car metal. To diagnose you need a multimeter. Check body of cigar lighter is connected to the chasis with meter on ohms. (continuity test) good is zero ohms. If earth problem, check under dash to ensure all earth wires connect to metal chassis. Then with ignition on, check centre pin at back inside cigar lighter has 12 volts to side.
If not then check fuse has 12 volt to it, Now you can get to the fan, repeat all the tests on fan. Best wishes, its tedious work.

The 25amp blower fuse is powered thru the key switch.
Do you have power at the key switch for that circuit when it is in the on position ?

First check that the fuse for the horn is good and if it is you will need to replace the horn relay that is found in the under hood high amp fuse box.

do you have a trailer wiring harness installed? very often this is poorly done, a causes a lot of problems with rear exterior lights.

A/C keeps blowing the fuse after I got it recharged. Its the R-12 system and it seemed to be ok before but now I got it recharged and replaced the blower motor in the front and now as soon as I turn it on it blows the fuse. I replaced the 3 fuse black and even rewired the fuses then took off the connectors tot he rotary switch and replaced those but it still blows the fuse. Any suggestions?

Could I have messed something up on installing the blower motor. __________________
Currently own:
1980 911SC slantnose
1991 Honda Accord -daily driver (1991 Honda Accord #2 - just because)
2003 Acura TL Type-S (2006 Honda Odyssey w/ DVD)

Gone but missed:
1988 Mazda RX-7 Turbo II (1991 Jeep Wrangler Renegade)
1984 Jeep CJ-7 (1994 Chevy Blazer)
1987 Chevy Corvette (1996 Mustang Cobra)
1993 Jeep Wrangler (1995 Mustang GT Conv.)
2003 Ford Explorer Sport Trac (1987 BMW M6)


Future: Hopefully not too far off
Ferrari Testarossa (Lamboghini Diablo or Countach)
please comment on these solution

The turn signal flasher is sticky and will have to be replace.

u have wires shorting together when the vehicle is shook that needs to be sorted now or it could melt the wiring loom

Just a guess: wiring harness.

Often, one bulb goes out, you don't notice, then when the other goes out, someone finally tells you! Check for power and good ground at lights (don"t forget... someone has to step down on brake or there will be no power there!!) If no power, check fuse and brake light switch. In general wiring does not go bad often enough to be of concern.