[NN5I]

I'm feeling smug today. When I bought my motor home (which has two air conditioners in the roof) in August 2011, the rear air conditioner turned out not to work. It would try to start, but (from the sounds) the compressor wasn't starting. The airmovers (fans) ran fine.

I was fairly sure I'd have to buy and install at least a whole replacement top unit, although the bottom unit (ceiling unit) seemed OK. But I conjectured that it might be the compressor start capacitor. So I ordered a new start capacitor, $20.40 with free shipping. If that didn't fix it, the loss would be small.

Today I installed the new capacitor. It took about an hour. The A/C works like new!

I'm feeling insufferably smug this evening.