S250 HVAC

[Stone Lake]

I have a 2008 S-250 with heat and A/C. My problem is eliminating moisture in the cab when I run the heater. I often need to run the A/C in conjunction with the heater, but the A/C overcomes the heater and it gets cold in the cab. Has anyone experienced this and/or found a solution?

 

[RodNH]

I've noticed the same thing with my 2010 S650 since new when blowing snow. I need to keep the AC on for dehumidfication in order to keep the windows from fogging up. Even with the temperature on maximum heat, after a while, the air supply is a lot cooler and I have to temporarily turn off the AC in order to get some decent heat. I'm not sure of the actual reason for it and don't have a solution. I have noticed that the "corrugations" in the cooling air inlet screen seem to get filled with snow. That would reduce the air flow across the oil cooler, the condenser and the radiator. I don't know if that has anything to do with it or not.