BROTY

I still don't know what device is connected to this wire, but pretty sure it is not connected to the generator anywhere. I will discover that something doesn't work and find that it should be connected to the mysterious red wire. Thanks for all of the replies

AFTER MANY HOURS OF TROUBLE SHOOTING, WITH THE HELP OF A NIEGHBOR, RETIRED ENGINEER, WE FINALLY GOT THE GENERATOR RUNNING. PART OF THE PROBLEM WAS A MISPLACED WIRE THAT CONNECTED TO A RELAY THAT ACTIVATED THE FUEL PUMP. LESSON LEARNED "ALWAYS" LABLE DISCONNECTED WIRES.

Converters and inverters are electrical devices that convert current. Converters convert the voltage of an electric device, usually alternating current (AC) to direct current (DC). On the other hand, inverters convert direct current (DC) to alternating current (AC). See also AC vs DC. I believe I have a converter according to this information. I do have a portable inverter that I can hook to the house battery and run low current draw electrical devices. I use it to charge up cell phones, run computers etc. Thanks for the information

After doing some more trouble shooting on my generator problem a friend, who is a retired engineer, and I traced the potential problem with to a relay located behind the choke control and air filter housing. Apparently one of the functions of this relay is to trip and allow power to the fuel pump when the start button is pushed. Just wondering if anyone has had a similar issue. If so I would sure like to get a part number for the relay.

Thanks for the reply, but I don't have an inverter installed in my motor home. I tried to trace the red wire to the component it is connected to but was unable to do so with my wire tracker that I bought at amazon. I checked all of my compartments for any signs a pack rat nest. None were found. Another mystery. Any further suggestions appreciated.

Thanks for the reply. I tend to agree with you, so I will be exploring that possibility and also the transfer switch. All of the components on the chassis are over 20 yrs old. Nothing lasts forever as they say.

Yes that is correct, but I am not sure if the two problems are related. I suspect the red wire might be causing the loss of voltage to the fuel pump on the generator, but I have not found a wiring diagram that shows any connection of the red wire to the generator

Sorry for the delayed info. I have a 2000 Damon Intruder MH #349 on a Ford F53 chassis. The red wire I am having a problem with appears to be a direct short since it sparks when I try to reconnect to the house battery. I have been having problems with my Onan 6500 generator that will not stay running. I suspect this wire may be the problem, but I am unable to trace the wire to the generator or whatever source that this wire provides current to. I believe I have seen a diagram showing a hot wire going from the house battery positive post to the generator, but I am not able to trace this wire any further than from where it leads into the chassis. Any ideas or suggestions are appreciated. Following is a message I sent to Flight Systems in regards the problem with the generator: I recently had a phone call booking on Thursday 9/21/23 with your tech Brian. I was able to get the engine to crank, but it will not keep running. I used a jumper from the 12 v batt terminal on the solenoid to the fuel pump and the engine ran great until the fuel ran out of the fuel bowl on the carburetor then died. I checked the fuel pump lead while the engine was running, but no voltage was detected at the hot wire to the fuel pump. Today I did the check cranking test by jumping the pos batt pin to the start solenoid pin and the engine cranked but would not start. This indicates the control board is defective. Is there any further test I can do the confirm the control board part # 300.-4901 is in fact defective. The generator is a Onan 6500: 6.5NHEFA26100P bom rev. 02-Aug-99

I have been trying to get my generator to keep running without success. The following info is what I sent back to Flight Systems: I recently had a phone booking on Thursday 9/21/23 with your tech Brian. I was able to get the engine to crank, but it will not keep running . I used a jumper from the 12 v batt terminal on the solenoid to the fuel pump and the engine ran great until the fuel ran out of the fuel bowl on the carburetor then died. I checked the fuel pump lead while the engine was running, but no voltage was detected at the hot wire to the fuel pump. Today I did the check cranking test by jumping the pos batt pin to the start solenoid pin and the engine cranked but would not start. This indicates the control board is defective. Is there any further test I can do the confirm the control board part # 300.-4901 is in fact defective. The generator is a Onan 6500: 6.5NHEFA26100P bom rev. 02-Aug-99

The aux red hot wire to the pos batt post to my house batteries is shorting when trying to connect the wire to the pos post. I need a starting point to track down the short