Upgraded operational control capabilities allow precise adjustment of various air conditioner operation programs, making responses more sensitive and the overall operation smoother and more stable. Optimized overall energy consumption performance enables reasonable allocation of power output, reducing ineffective energy loss of the equipment, making daily use more energy-efficient and worry-free. Avoid various abnormal faults, which can reduce issues such as abnormal start-stop and operational lag, lowering maintenance frequency. Enhance user comfort experience; after the mainboard performance returns to normal, temperature adjustment and airflow mode switching are smoother, and indoor temperature control is even and comfortable. Air Conditioner Motherboard Control Board ，compatible For Gree， 30221000003 ZQ1220A