Abstract: Disclosed are a refrigerant leakage detection method and device, an air conditioner and a storage medium. The method includes: acquiring an exhaust temperature of an air conditioner at various moments during a preset time period, in response to the exhaust temperature of the air conditioner being greater than a preset exhaust temperature and a target operating exhaust parameter of the air conditioner exceeding a preset range of the exhaust parameter of refrigerant leakage; determining an extreme value of the exhaust temperature and an exhaust moment corresponding to the extreme value of the exhaust temperature of the air conditioner based on the exhaust temperature at various moments; acquiring an exhaust period of the air conditioner based on the exhaust moment; and determining whether there is the refrigerant leakage in the air conditioner based on the exhaust period.

Abstract: Disclosed are a method for sterilizing an air conditioner, an air conditioner and a storage medium. The method includes receiving a sterilization instruction, and detecting a temperature of an indoor heat exchanger in a heating mode. When it is determined that the detected temperature of the indoor heat exchanger is lower than a preset sterilization temperature, according to the method, an enhanced vapor injection circulation is started to increase the temperature of the indoor heat exchanger to be higher than the preset sterilization temperature.

Abstract: A control method for an air conditioner is provided. The air conditioner has a retractable top air output mechanism provided at a top thereof. The control method includes: controlling, in response to a specified wind shower instruction in a cooling mode, the top air output mechanism to stretch towards an outside of the air conditioner to open an air outlet of the top air output mechanism; adjusting, based on the specified wind shower instruction, an air-out included angle of the top air output mechanism to be within a first angle range; and adjusting, based on the specified wind shower instruction, a supply air speed of the top air output mechanism to be within a first air speed range.