What is the reason for the poor cooling effect of air conditioning for ten years?

There are several reasons for the poor cooling effect of air conditioning for ten years:

1, freon is not enough, which usually appears in old air conditioners that have been used for about five years. Long-term use causes the normal consumption of air-conditioning refrigerant (Freon), but this is only manifested in the fact that the air-conditioning is not cooled enough than before, and it will not be completely uncooled, so Freon can be replenished in time.

2. The power supply voltage is insufficient, and the normal starting voltage of the air conditioner is 220V+- 10%. In China's power supply system with phase voltage of 220V and line voltage of 380V, almost all compressors above 200V can be started. When 180V is above, 70-80% can be started, and the startup rate below 180V is extremely low.

3. The power of the old air conditioner is not enough, and the room with a large area of low-power air conditioning pipes, or some air conditioners, although the power seems to match the room area, will also cause the indoor air conditioner to be unable to cool because the room is relatively closed when used, such as the doors and windows are wide open.

4. Old air conditioners are not cleaned and maintained for a long time. The outdoor unit is exposed outdoors, and it is easy to absorb dust and sundries. If it is not cleaned for a long time, it will affect the heat dissipation performance of the machine and lead to the reduction of the refrigeration effect of the air conditioner.

Solution:

1, the problem of the old air conditioner compressor can only be repaired by professionals, or consider buying a new one.

2. If the filter screen of the old air conditioner is blocked, pay attention to cleaning the filter screen, about once every 15 days.

3. Articles cannot be placed in the air inlet and air outlet of the air conditioner, otherwise it will affect the refrigeration effect of the air conditioner, and foreign objects should be removed.

4. If there is a heat source in the room that affects the refrigeration of the air conditioner, keep the heat source in the room at a certain distance from the air conditioner.