My 2010 Honda Civic with 98,000 miles is having an intermittent AC issue. The AC will work fine for approximately 20 minutes and then it stops. It seems to work longer in cooler weather and shorter in hotter weather. Once it has been parked awhile it will work again. Some investigating on the internet indicates it may be a worn compressor clutch and the repair is fairly straightforward. The issue that I’m trying to resolve in my mind is why it is intermittent? Why does the AC work initially and then stop? If the clutch is worn why does it work at all?