Abstract: A valve actuator may include a valve control shaft extending at least partially through a housing of the valve actuator, wherein the valve control shaft is configured for controlling a valve position of a diverter valve. A first cam wheel may be included, where the first am wheel at least partially surrounds the valve control shaft. A first cam may be fixed to the first cam wheel, and a first microswitch may have an actuator located in a rotational path of the first cam. The valve actuator may also include a second cam wheel at least partially surrounding the valve control shaft, where a second cam is fixed to the second cam wheel, and where a second microswitch has an actuator located in a rotational path of the second cam.