Why does Gree cabinet air conditioner blow cold air in the upper part and hot air in the lower part?

This may be a phenomenon of fluorine deficiency or shunt blockage.

1. The refrigerant enters the evaporator after being decompressed and cooled by the expansion valve. If there is less refrigerant, it will be completely vaporized into refrigerant gas at the front end of the evaporator, so the heat exchange efficiency in the second half will be reduced and the refrigeration effect will be poor. It is suggested that if the refrigerant is insufficient, just replenish it.

2. Another possibility is that after the expansion valve, the refrigerant enters the evaporator in two ways, and all the way is blocked. There is no refrigerant for heat exchange and no cold air is blown out. It is recommended to contact the official after-sales customer service to solve the problem.

Extended data:

Performance of fluorine deficiency in air conditioning

1, the tracheal flap is dry, and there is no obvious cold feeling when touched by hand. The reason is that the lack of refrigerant leads to the premature boiling end point in the evaporator, which makes the refrigerant in the valve increase excessively and the valve temperature rise, which is higher than the leakage point temperature of outdoor air.

2. The liquid pipe valve is frosted. The reason is that "lack of fluorine" leads to the pressure drop in the liquid pipe, the boiling point drop, and the valve temperature is lower than the freezing point.

3. Open the indoor unit panel and remove the filter screen, and some evaporators can be found to be dewed or frosted. The reason is that due to the lack of refrigerant, only some evaporators boil to absorb heat, which reduces the refrigeration area accordingly.