The headlight is good the wiring bad need to know if it's circut breaker

Bad battery

Anything can go bad, but to my knowledge circuit breakers seldom do. If you have a test light, pull the circuit breaker and probe both terminals for a power signal, with the key on. One terminal should show voltage with key on. If not, check the power distribution box for a blown maxi-fuse, or the wiring from that box to your fuse panel.
BTW, no, no relays are in the window circuit. So if the circuit breaker has power to it, put it back in and check for power on the driver's door master switch-one wire on the master should have voltage with key on. If no hot wire to the master switch, check inside the door openings for a broken wire. If you do have one hot wire there. check the power windows ground-the ground wire for the power windows originates at the master switch and goes back into the cabin to a nearby ground. Put one lead of the test light on the hot wire (key on), and probe the ground terminal at the master switch-if your ground is good, the test light will light up. If the ground is lost, no light. Check for a broken ground wire in the door opening, and/or find the ground and see if it is bad. If the master switch has a hot wire and a good ground wire, replace the master switch.

Hello
Either the circut breaker is too small or there are too many other things on the same circut as the a/c.

Another possible solution is the breaker itself may be bad.Or the compressor in the a/c unit is going bad.

Usually a 20 amp breaker will be good for a window a/c unit under 16000 btu.

that is in the control cicut the contactor might be bad and taking out cntrl fuse.unhook contactor control voltage by unplugging from contactor tape off the two wires put new fuse in turn on power if fuse does not blow replace contactor.if it does blow you will have to isolate the next thing in the control circut maybe the light.you can buy resetable 1amp circut breakers at grainger for test purposes.sometimes on people I know I will wire in those breakers for them no more buying fuses.

Look under the hood for the first fuse box, located on the driver's side. check the headlight relay it may be bad. all the relays are in this fuse box.

Why not download a wiring diagramme from Harley? Can't be that expensive??
Will your nearest Harley dealer send you a photocopy of your circuit? Ours will.
Hope that helps.

It actually should have a lot more stuff such as headlight, taillight, brake light, turn signals, etc. What is is that you want to know? If you want a stock wiring diagram, contact me at [email protected] I think I have one here somewhere.

You have 1 of 2 problems #1 the breaker overload element is bad=replace breaker, #2 You have a shot somewhere in your line feeding your spa, make sure you have power to the line side of your panel/breaker. hope this helps you...

if any of the headlights work the breaker is good, very rare to have a bad breaker. do both high beams work? if so most likely the bulb.

You have a bad mutifunction switch or headlight switch is going bad and is over heating then cooling off comming back on Have a mechanic check it cause there are other things that can cause this. Since it's not blowing a fuse at this time I would say the head light switch is bad.