I have a 2017 NV200 with 40k miles. This year and especially in the last month we have had some very hot days. I noticed when my van has been running for a while and is at full operating temperature sometimes the air conditioning stops working. I am guessing the ECU might be doing this to help keep the engine running cooler. Has anyone else experienced this? I checked the coolant level and it's fine. Also I checked the freon level in the A/C system and it's got the right amount of pressure.