the problem is :
ac will work fine for hours doesnt matter but once I use the ec button to turn the compressor off, and then turn it on again, the compressor simply doesnt engage again. Until, i park the car and start after half hour, the the compressor will work with ec off mode untill i try to turn the ec off button to turn the compressor off.

That, or if i don't even touch the ec button and simply keep the compressor on all the time, once i park the car even for a minute, and turn the car back on, the compressor won't engage.

somehow, the car needs half hour or more to engage the compressor back on...

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