notjustair
Well-known Member
My knowledge is JD and IH tractors, so keep that in mind.
On the older tractors why was the heat and a/c on separate knobs? It makes no sense. On the 40 series Deeres I have and the IH's you can have the heat on full blast and the air on as cold as it get just fighting each other. The only thing I can think of is to defrost the windows on humid days. On my Deeres the decals are worn so the first few times I head to the field in the spring it is a guessing game to remember which dials to turn. I bought a 7800 JD and they finally have automotive style controls. I can't tell you how many times I have gotten out to see if the compressor has kicked in and I have both the heat and a/c on negating each other. It might call for some tape and a sharpie to label them.
On the older tractors why was the heat and a/c on separate knobs? It makes no sense. On the 40 series Deeres I have and the IH's you can have the heat on full blast and the air on as cold as it get just fighting each other. The only thing I can think of is to defrost the windows on humid days. On my Deeres the decals are worn so the first few times I head to the field in the spring it is a guessing game to remember which dials to turn. I bought a 7800 JD and they finally have automotive style controls. I can't tell you how many times I have gotten out to see if the compressor has kicked in and I have both the heat and a/c on negating each other. It might call for some tape and a sharpie to label them.