I bet you have rodents/or material that has blown into your tractor cab top and the water drain is clogged, or like has happened once with my tractor, the blend air door cable popped off up in the HVAC system under the cab top leaving the blend door stuck. Alternatively, the high and low side Schraders are right around the upper radiator hose, just above the thermostat and you could screw in an AC manifold set and check pressures (do this only if you know what you're doing).
Still haven’t figured out anything but did order the radiator genie that Eric recommended and man that thing is awesome. Rinsed the radiator and the fins off they were dirty Compared to my regular hose and leaf blower so they are very clean now unfortunately the AC still isn’t real cold but do appreciate the advice and it will be handy to have after combining the wheat to clean off the combine. starting to look like I’m going to have to take it an hour away to the dealer
I have great air flow through every vent. I used the wand and blew air through each one and had it come out of them all with zero debris., I’m allergic to everything mice so I feel like I would have smelled it if I had one up there. I have so much poison and traps around the barn I just don’t have many . I have to plant soybeans tomorrow but will pm you my number if you think that could be causing it. Dealer says my temps should be around 45. I average 65-70 with clean fins now
SOP for me on my tractors, cars and trucks. An inline WOG (ball valve) in either of the heater feed lines to cut the flow of hot coolant in the summer. The heater valves all tend to bypass coolant so I eliminate that issue. My cab roofs come off yearly for a system clean up top. New tractors may have the ac/heater units under the sear as well. Same applies but seat removal instead. I would never add refrigerant without a set of gages and the correct refrigerant.
