97 Vision Heater trouble

The heater fan is stuck on high. All other buttons on controller are functioning properly. I uninstalled the controller from the dash and pulled out both plugs (so the controller is now totally uninstalled) and the heater fan continues to run.

Any suggestions would be appreciated.:screwy:

Try changing the blower motor resistor block. I hve had this problem on other vehicles, and the default if the resistor block fails is to leave the fan on the high setting mode. Good luck!