HACs Tuya Local

Hi Guy’s, I have the Probreezer 30L day Dehumidifier, this is working through Home Assistant and HACs Tuya Local. The problems I am having is the fan speed has 3 settings high, low and off, the only way I can move between these setting is by increasing and decreasing fan speed, which means if I decrease too far the Dehumidifier turns off, is there code that I can use to say fan speed “High” or “Low” or something else. Any help much appreciate. Mark