When the back A/C starts, the genny dies!
Onan 6000 quiet diesel with 1,600 hours. Used to be able to run both 13.5 A/C's with no problem. Now, with the front A/C running, and then start the back A/C unit, the genny dies. Flashes code 22 w...
Forum Discussion
myredracer wrote:
x2 on the caps. Sounds like a faulty start cap.
Some info. here. RV AC capacitors As mentioned, if you are going to take a cap. out, short it out first to discharge it. If you can't test a cap., I would just go and replace one first and see if that fixes it. If not, re-install it in the other AC. Or spend the extra $20 or so and just replace it in both AC units. I guess it's also possible to be a faulty start relay but more likely a cap.
You won't be able to measure the actual startup current with a multi-meter. It actually goes as high as around 6 times the run current for a small fraction of a second and it won't show on your meter. You can find the starting current in a AC manufacturers tech. data.
Some info. and pricing on Coleman caps.: Coleman AC parts Maybe you have another make though.
So, Coleman does not list a part number for a start capacitor. They now list a "hard start" capacitor. Can anybody tell me the difference?
Seems cheap enough to order up a pair of these and just install them.
