2001 International 9100i heater/ac problem.

Got power to everything in low to med speed solenoid on med and high on high but all power to resistor stops when I change speed from low

 

Ok I have two 9200's one the fan didn't work on high replaced resistor. Bingo works great. The other one only works on high replaced resistor that didn't help. Replaced a relay that didn't help either. Any suggestions?

 

What year? Most of them, Low and Med go through the resister and back up to the high speed relay, but connect to the fan through the relay between 87A and 30. The wire between the resistor and 87A might be open. It's 75T if you have a late 90's model.

 

Have 2005 9900i replaced compressor and drier filled with 3 1/2 lbs of Freon. Work for a day then back to only blowing hot air. mechanic said there was a clog in the system? Not sure if that's the real problems any suggestions.

 

If you have an APADS, see if it is flashing a fault code.
Check if your compressor is getting voltage with a test light when turned on.
Recheck your a/c charge with gauges.