The hotel air conditioner does not heat.

First of all, it depends on whether the air conditioning mode you set is heating, and you must set the correct mode. In addition, you should pay attention to whether it is locked or not, and you need to contact the person in charge of the hotel to unlock it. If the final treatment is not good, everyone should pay attention to check the air conditioning system. Generally, there is a fault or problem in the system, there will be no heating, and professional maintenance is needed.