
1. Causes of the hot air conditioner not working
Normally, the hot air conditioner not working can be in two cases:
Hot unit not working while the air conditioner is still cooling: If your home device is in this condition, don't worry too much, it's a normal phenomenon. Especially in air conditioners with energy-saving function, when the cooling reaches a certain temperature, the temperature sensor relay will automatically disconnect.

+ When the air conditioner is in standby mode, the hot unit will not operate and will only activate when the room temperature rises.
+ If the hot unit stops working, and the air conditioner has airflow but does not cool deeply, it may be due to incorrect air conditioning mode settings.
+ Set your air conditioner to Cool mode and adjust the temperature according to the outdoor temperature to avoid heat shock.
Hot unit stopping during operation, air conditioner not cooling could be due to the following reasons:
- Irregular air conditioner maintenance causes the unit to accumulate dust, hindering the cooling system and causing the air conditioner to shut down, and the hot unit to malfunction. You can resolve this by contacting the technical team to clean the air conditioner.
- Malfunctioning temperature sensor relay of the air conditioner is also a reason for the hot air conditioner not working.
- Incorrect installation of the air conditioner unit can impede the heat dissipation process, leading to automatic shutdown when the temperature is too high.
- Incorrect technical installation of the air conditioner, such as unbalanced unit placement, incorrect gas pipe installation, improper spacing between two evaporators, etc., can result in inefficient air conditioner operation.
- The fan inside the hot unit or the wires in the condenser may be damaged, leading to the hot air conditioner working intermittently.
2. Detailed guide on troubleshooting the non-functional hot air conditioner
If the hot air conditioner operates unstably, alternating between cold and non-functional states, the best course of action is to call the warranty center for technicians or repairmen to inspect and assist you.

If you are not a professional with specialized tools, it is not advisable to dismantle and repair the hot air conditioner yourself to avoid unnecessary risks.
Here is the troubleshooting guide for the non-functional hot air conditioner that you need to be aware of. Save it for reference and application. Don't forget to follow Mytour for quick updates on the most useful information.
