The Honda Fit, among other models, may have issues with one or more fan speeds for the heater or air conditioner failing to function.

While this may be associated with the switch used to select the fan speed, it is most likely due to a failed blower motor resistor.

In most instances, one or two speed selections will result in non-operation of the fan, and no air from the vents. However, it is also likely that the only speed that functions is the highest fan speed.

Inspection, testing and replacement of the blower motor and resistor will be required to properly diagnose the issue, and replacement of resistor is the likely solution.