I just took delivery of a 2002 t200 bobcat. I traded in my 863, which had a cab and heat also but it was a f series cab. The 863 heater would get warm when the temperature guage got into the normal running temp range. The t200 heater does not blow any hot air even when the machine is up to temp. I put the cab up and noticed some sort of a electric solenoid or valve in line on one of the heater hoses and the 863 did not have this. anyone know why the heater will not work? The a/c works great but I need the heat for pushing snow.