Genuine Daikin 2386731 Motor Operated Valve Coil is the electrical coil that drives a motor-operated refrigerant valve, moving it to the position the control board calls for. When it fails, the valve may not move correctly and the unit can lose output, heat or cool poorly, or stop and start at odd times. A genuine coil drives the valve the way your Daikin expects, keeping that control accurate — where a non-genuine part can drive it weakly or unreliably.