Rowdydog, there is also a thermal cut off relay in your system. If the system freezes up it will shut off the compressor until it thaws, then restart the compressor. However that should not affect the fan, air should still be flowing through the vents. If it is the fan that is shutting down, it may be a bad resistor coil, high speed fan relay, or both. There is also a chance that you are low on coolant (Freon) which will also shut down the compressor.
Please give us a bit more information and a better description of exactly what is happening. I had a previous problem with mine. The fan was not running at all speeds. Replaced the resistor pack and high speed relay and all is well with the fan now. Easy fix, less than $30 in parts.
Tom and Barb
'07 Winnebago Voyage 35L
Workhorse W22 chassis FMCA 219315