1. It is normal that the ambient temperature is lower than 17 degrees without heating, because the air conditioner has been set before leaving the factory. If the ambient temperature is higher than 17 degrees, it is not normal to remain warm.
2. The outdoor heat exchanger will frost, which will affect the heat transfer effect, so it will be defrosted regularly or according to the temperature. The so-called defrosting means that the air conditioner is automatically set to the cooling state to melt the frost layer of the outdoor heat exchanger. In order to prevent cold air from blowing into the room, the indoor machine will stop working at this time. Generally, the defrosting time is about 5 minutes, and there is a red indicator light on the air conditioner when defrosting.
3. When the outdoor temperature is lower than 0 degrees Celsius, the outdoor air conditioner will frost immediately. When users turn on the air conditioner for heating, it takes about 8- 12 minutes to "defrost", and some users mistakenly think that the heating effect of air conditioner is not ideal.