When the air conditioner needs to be defrosted, the ambient temperature of the outdoor unit must be very low to cause frost. Therefore, when your air conditioner is defrosted, it is impossible to melt the frost quickly by relying only on the outdoor unit's fan. The general design is that the air conditioner switches to cooling mode via the four-way valve in defrost mode. At this time, the outdoor unit As a condenser, the high temperature refrigerant will quickly melt the frost as it passes through. After running for a while (usually directly setting the defrost time, such as 10 minutes), the air conditioner. will automatically return to heating mode to heat the room.
As a result, the compressor and the outdoor fan are turned on, the indoor fan is not turned on, and the sweep motor is not turned on.