Genuine Daikin 1703117 Indoor Float Switch Bracket is the mounting bracket that holds the float switch in place in the indoor unit's drain area, keeping it at the correct height to sense the water level. When it is broken or missing, the float switch can sit wrong and trip falsely or miss a real rise in water. A genuine bracket holds the switch exactly where your Daikin expects — where a non-genuine part can let it sit out of position.