When the A/C is operating I am getting a discharge temp of 48-51 Deg.

I can drive to lunch come out, restart and NO A/C. Just blows hot. I can stop somewhere again, restart and A/C operates fine.

Over the years I have had freon properly added, but I am wondering since I have never had it evacuated, could moisture have entered the system and it freezes at the expansion valve ??

What values/addresses should I look at if it is electrical ??

Any assistance is greatly appreicated !!

__________________
Gary
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