The application provides a
defrosting box control method and device, a multi-split air conditioner and a readable storage medium. The target
branch output opening degree adjustment
signal is adjusted separately, so that only the
branch can be turned on to heat up. Meanwhile, the correlation of the temperature detection
signal detected by each temperature sensor and the opening degree adjustment
signal is determined, so that the temperature sensor whose detected temperature is closest to the temperature change of the target
branch can be determined among the temperature sensors, the temperature sensor arranged on the target branch is determined, and the temperature sensor is bound to the target branch and the target opening degree adjustment device. Automatic binding under real wiring is realized, so that in the case of wiring error, the real wiring condition can be automatically determined, and the multi-split air conditioner control is executed based on the real wiring.