From the folks at Coach-Net:
Although there have been several articles written about RV maintenance, including my own, some of them fail to address the maintenance requirements of the rooftop air conditioner. This is mainly because for the most part this appliance requires very little attention.
With the arrival of the hot days of summer (for many of us), spending some time performing simple maintenance on the AC unit will ensure you keep a cool rig.
I’ll start off with a primer outlining how the air-conditioner works.
To read Coach-Net’s suggestions for maintaining an RV air conditioner, click here.