I checked the pressures today, and they were low. In fact, the compressor was pulling a slight vacuum and the pressure switch wasn't cutting it out. So I added about 10 oz. of R134a and I'm getting 28 F cooling differential at the vents. Now I gotta find the leak, fix the leak, and replace the bad pressure switch.

The good news is the compressor is still happy and so am I, because that and the evaporator are the two biggest body blows on MB A/C units as far as cost goes. I figure I'll be lucky if I can replace a 124 compressor, including recvr/drier and exp valve for less than $1000, with me doing all of the work.

We're not there yet, so I'm a happy camper.

ttfn