No Power to Front AC/Micro/Outlets

[freedombro]

1986 345 w/454. On generator the rear AC works but no front ac, micro, or outlets. On shore power...nothing works. All breakers seem fine switch is in right position for each test. Any suggestions? Thx!

[Vycan]

If your coach was originally 30A wired, you should have a switch in the cupboard to select front and rear AC. For mine I have to have the switch set to front for both to work while the generator is running, and when plugged into prime power (campsite) the switch in the cupboard chooses which AC will run. Because every coach is different, they might have wired your whole front circuit to that switch, so if it is selected to rear, it might have all power cut to the front. Second, but unlikely options is the breaker for the front of your coach is bad. The most likely option after switch position is the Automatic Transfer Switch is bad. If you have electrical skills I would get out a multi meter, take the cover off of your ATS, and figure out which wires go where, label them, then plug the coach in and test them. Usually the Rear AC has its own ATS, so my bet is that you have a bad ATS up front since the rear AC works on the Generator.

[bobmiller1]

Front transfer switch is where I would start, Regards, Bob

[freedombro]

Thanks for the input! Update: Transfer switch seems to be working now on generator, not sure what was done that fixed it? Shore power issue was a cord problem. The black and white legs on the 30a cord at the RV repair shop were switched! BIG problem. Triggered breaker and big noise from power source until discovered. Noticed slight burning smell. ACs, micro and outlets now working on both. Worried about other potential issues from this huge snafu? Didn’t have time to test everything...particularly the fridge. Thoughts? Thx again for your time!

[freedombro]

Forgot to mention that the generator won’t start since the shore power issue happened. Turns over for 3-5 seconds then stops. It’s a newer fuel injected Onan 7k w/67 hours on it. Plenty of fuel...3/4 tank. Transfer switch finally engaged properly on generator before the shore power issue happened. Genny was slow starting before...took 8-10 seconds turning over, I would guess, before it started . Now 3-5 seconds and it stops turning. It did sit for six months or so in SoCal between starts...my bad. Thx Again!

[Vycan]

These are my annual service checks I do when I take her out of storage on the GENSET:
1. Verify oil level in reservoir (it has a cut off if the level gets too low depending on the model)
2. If it is on slides, I would pull it out and change the spark plugs. (I do this annually or every 100hrs whichever comes last) If not on slides, I would use a motorcycle lift under the GENSET and disconnect it from the coach to service it
3. Consider checking air filter to see if it needs replacement
4. If gasoline generator, consider removing carburetor and cleaning it with some carb cleaner from all angles (get the gasket before removing it), if propane, consider turning off the propane at the tanks, removing and inspecting regulator for potential replacement
5. Disconnect the starter and remove it to clean with elec-tra-motive cleaner

Then you can get out the multimeter, and get your model specific manual and check all functions on the control board using the troubleshooting section. The power generation side of it is beyond my skill set so I usually take it in for service if it is anything to do with that.

[mayco]

I would double check to make sure you've turned off all the load before cranking the genny.
Since you've been turning things on and off during your testing it would be easy to overlook one or both of your ACs being left on. Make sure your oil level is full in the genny because of the auto shut down. My genny starts off the chassis battery, make sure your start battery is fully charged. Most of the generators in these rigs seem to crank a bit before startup, 3-5 seconds isn't long enough to get that started. Especially since it's sat for a bit. Those are the first things I would check in your situation.

[bobmiller1]

Mike....are you still giving that seminar on changing the points with a mirror at the "Get-Together" ????

[freedombro]

Thanks to all for the input. I'm told the generator is throwing a 41 code. Bad Rotor. Taking it to Smith Powerhouse for inspection/repair. They are among the best, and were the ones who installed the genny 2 years ago. Stay tuned...

[mayco]

Originally Posted by bobmiller1

mike....are you still giving that seminar on changing the points with a mirror at the "get-together" ????

ha!!!!!!!!!

Absolutely!

[bbabich]

Originally Posted by freedombro

1986 345 w/454. On generator the rear AC works but no front ac, micro, or outlets. On shore power...nothing works. All breakers seem fine switch is in right position for each test. Any suggestions? Thx!

Try the relay under bed in rear. Had the same problem.