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Originally Posted by speeder
I went over and poked around a little on it and the front unit still works like it did when I bought it but the rear does not. I checked the main breakers in the coach and found the switch for shore vs. generator power, it was in the wrong position and when I flipped it, the unit turned on. Blows cold but I still want to service it if possible. I took the big cover off of it and it needs a good cleaning at the least. Lots of pine needles and dirt under the cover.
So what am I looking for on the one that does not turn on? What does the start up capacitor or whatever it's called look like and where might I find it, if anyone knows? I took some photos:
Also, the generator, which has always started right up and sounded good, seemed to be straining powering just one A/C unit and started smoking visibly...I shut it down when I noticed. It's a standard Onan unit found in RVs but it runs on LPG instead of gasoline because my RV is a diesel. On the gas Airstream RVs, (much more common), the generator ran on gas. I can change the oil and check the air filter but I really don't know what else to check or service on it(?)
Granted, it was over 100 deg. today but if the generator can't handle that, (powering A/C units on a hot day), what good is it? I cannot see how it cools itself...is there a fan in this thing somewhere? All knowledge apreciated!
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I believe the cooling fan is inside that square housing on the left in your pic . It pulls air across the engine/head/oil filter . So air flow is left to right when looking at the unit .
Could you tell where the smoke was coming from ? What color smoke ? When these sit it could be as simple as bugs/bees built a nest to mice built a nest to dirt/leaves build up or mechanical like stuck piston rings .
I think you will need to pull some cover plates or whatever you can to do a good visual inspection . Also because of the age every wire needs to be looked at for cracked insulation and rodent damage . Cool rig good luck with getting her going .