If your car's air conditioning system was working fine and providing heat, but suddenly stops, there could be several potential reasons. The issue may lie in components of the air conditioning system, such as a dirty condenser, electrical problems, or incorrect relay settings.
Reasons Why the Car's Air Conditioning Stops While Heating
1：Dirty Condenser:
One possible cause is that the car's condenser is too dirty. A dirty condenser reduces the car's cooling capacity, which can cause the air conditioning system to shut down. If this happens, you can try cleaning the condenser yourself. If you're unable to clean it, it's recommended to take the car to a repair shop or a service center where professionals can clean or inspect it.
2：Poor Electrical Connections in the AC System:
The car's air conditioning system relies on various electrical connections to function properly. If there is a short circuit or broken wiring, the system might suddenly stop. In such cases, you will need to have the wiring checked and repaired.
3：Incorrect Relay Settings:
Another possibility is that the settings for the car's relay are too high. If the relay is set with too high of a voltage limit, the system may stop functioning when the voltage exceeds the set threshold while driving. This issue can be resolved by adjusting the relay settings to a more suitable level.
In any case, if the air conditioning stops working suddenly, it's important to investigate and fix the issue to restore functionality.
