1, refrigerant leakage or insufficient
Air conditioning refrigerant not only plays a role in air conditioning refrigeration, but also plays an important role in air conditioning heating. However, in daily use, there will be refrigerant leakage due to various reasons, or the refrigerant contained in the air conditioner is insufficient after long-term use. In this case, the air conditioner will not heat. You need to hire a professional to add refrigerant or repair the air conditioner.
2. The defrosting controller is out of order.
When the air conditioner enters the heating state in winter, it must be defrosted first. After defrosting, the heat exchange rate of the air conditioner can be improved. If the defroster is broken and doesn't work, many times the air conditioner can't start the heating mode normally. Need to find a professional to check and repair.
Matters needing attention in using air conditioner
1, temperature control: the purpose of air conditioning is to provide a refreshing and suitable working and learning environment for everyone in hot summer. The temperature should not be too low, and it is generally appropriate to control it at around 25 degrees Celsius.
2, air conditioning switch: when going out for a short time, try not to turn off the air conditioner, frequent switching of the air conditioner not only does not save electricity, but also consumes more electricity.
3. Indoor ventilation: When using air conditioning, keep indoor ventilation well, and regularly open windows for ventilation to ensure indoor and outdoor air circulation.
4. Air-conditioning cleaning: cleaning the air-conditioning filter screen and the interior regularly is conducive to keeping the air clean and prolonging the service life of the air conditioner.
5, avoid direct blowing: adjust the air outlet of the air conditioner to avoid blowing directly at people to avoid catching cold and getting sick.