What if the air conditioner freezes because of the weather?

1. In order to ensure the normal operation of the air conditioner, the air conditioner itself has an automatic defrosting function. The defrosting function is simply a short-term "cooling operation" (indoor unit is not ventilated), which makes the outdoor unit become a condenser in a few minutes, allows the high-temperature refrigerant to defrost itself, and then automatically resumes heating operation.

2. The defrosting process is automatic and cannot be controlled manually. In addition to reducing the heating effect, it will also cause no hot air in the indoor unit, white smoke (water vapor) in the outdoor unit, black water flow in the outdoor unit, air release sound (caused by four-way valve switching) and so on, all of which are normal phenomena.

3. Do not cut off the power supply of all air conditioners, and require continuous power supply to ensure that the crankshaft heater of the outdoor unit can continuously heat the compressor and ensure that the refrigerant oil does not freeze, so as to carry out good lubrication.

4. All air conditioners with water system (multifunctional VRV, etc.). ) must be electrified, or take other measures according to the instruction manual. Otherwise, the protection function will not work. The low temperature below freezing point may cause the water system to freeze, and when the water freezes, its volume will expand, thus freezing the boards, water pipes or fan coils.

5. The outdoor unit should be well ventilated to prevent snow from burying the outdoor unit, and to prevent snow from falling and damaging the outdoor unit blades. Sometimes the snow will freeze the fan blades of the outdoor unit, which will also cause the air conditioner to fail to work normally.

Extended data

Matters needing attention in winter air conditioning use

1, don't switch the air conditioner frequently in a short time.

When air conditioning is used for heating in winter, frequent switching of air conditioning in a short time (such as 1~2 hours) should be avoided. Because the compressor of the outdoor unit needs to be started at the same time when the air conditioner is started, and every time it needs a lot of current, switching the air conditioner back and forth in a short time means that the compressor also needs to be turned on and off frequently, which indirectly causes extra power consumption and damages the compressor. Therefore, if you go out for a short time, there is no need to turn off the air conditioner!

2. Don't set the temperature too high: around 20℃!

When using air conditioning in winter, you must not set too high a temperature just to keep warm. It is suggested that the temperature should be set at about 20℃. In this temperature range, people feel more comfortable, and air conditioning also has better energy-saving effect. When turning on the air conditioner, you can set a slightly higher temperature (slightly higher than the expected temperature) to make the air conditioner reach the expected temperature quickly, and then lower the temperature when it feels that the temperature is suitable, and change it to a small air volume or energy-saving mode to reduce energy consumption and noise.