Wednesday, November 13, 2013

How To Service an Onan RV Generator

One of the greatest freedoms we get from RVing is the ability go anywhere, any time, completely self-contained.  Our Onan 7.5 kW QuietDiesel generator is a key part of that freedom.  Proper care and maintenance of the "genny" will lead to a long life of trouble-free operation.

Each spring, we service our genset as part of routine spring cleaning. The oil and oil filter get changed every year, along with cleaning the spark arrestor.  Some years also call for air & fuel filter replacement and coolant system service too. Generator service intervals are based on time or hours they've run, but we generally don't use our generator enough to need service more than once a year.

We take care of all of these items ourselves. In over a decade of RVing, we've never had anyone else work on our Onan. We have never had a day of trouble with it, and the routine service is so easy that we've never needed any outside help.  We'll cover the three most basic service items here.

We just changed the fuel filter last year, so we won't be demonstrating that today.  And the coolant system service is involved enough to require its own video, which you can view here.  In this video, we'll show how to change the oil & filter, replace the air filter and clean the spark arrestor.

Our Onan (an extremely popular brand) is a diesel model, and runs off the same fuel tank as our engine. Your genset may be different than ours, especially if it runs on gasoline.  Be sure to follow the manufacturer's instructions for operating and maintaining your generator.



We don't pretend to be experts on any particular RV topic, and mostly know about maintaining our own rig. But many systems are the same on different RVs. The advice we give works well for us, but be sure to consult a professional technician if you're unsure about working on your own RV.

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