Kioti CK2620

I have about 22 acres with only about 5 field. There's probably another 5-7 that were fields about 5 years ago that need a good cleaning. Mixed in with the little shrub trees starting go grow are a lot of rocks 12" and bigger. So the uses I have right now will be a rotary cutter, loader and box blade for re-doing the driveway, loader and tree bucket for removing rocks and stumps, and if I'm lucky a snow blower (Northern Vermont). Over the next few years, I'll also hopefully start being able to put in an acre or two of garden that will need to be plowed and tilled. I'm thinking that the 2620 with a manual transmission should be able to pull a single bottom plow easily, and maybe a two bottom. Unfortunately, my last experience with heavy equipment was about 30 years ago, so I know I'm going to be out of practice. And my last tractor experience was riding around with my grandfather on his Allis-Chalmers G, so I know anything I remember from that won't apply at all. My thinking on the 2620 is that it can go up to 35 once I don't care about the warranty, and as far as I can tell, there are no computer controlled modules on it. Everything appears to be mechanical. Any thoughts on these models?

I have a fairly new tractor, a CK2620se cab model, got it last year and now have 140 hours on it. Unfortunately today the AC stopped working, naturally when it’s 100 degrees out. The little LED light on the AC button isn’t lighting up when the switch is depressed. Anyone know what I might check to diagnose? Already checked the fuse. I’m not sure how to check a relay but I can pull it and take a look (I’ll look up how to check online). It’s still under warranty but I’d have to pay a trailer fee of about $300, so if there’s an easy fix I’d like to try first. My evaporator under the hood is nice and clean. Any ideas?