Thanks for the helpful information! I'll hunt around the evaporator drain tube and see what I can find. Is it correct that if there is an evaporator leak, it should leak no matter what mode it is running in? After the leak in fall 2020, I ran the AC easily 100 hours over summer 2021. And then bam, l...

2005 Jetta wagon. Manual AC controls. Northern California and fall days can sometimes have heating and cooling on the same day. Confusing intermittent refrigerant leak. Car is pretty crappy and I can’t justify high cost repairs. Trying to figure out what is going on. Fall 2020. One day AC is working...