What Causes the Rear Air Conditioning in Baojun 730 to Not Cool?
4 Answers
Baojun 730 rear air conditioning not cooling reasons are as follows: Preference for using external circulation: The reason for poor air conditioning performance is that many car owners prefer to use external circulation. Over time, the air filter gets clogged, and many people don't even know where to check the filter, which naturally affects the airflow and ultimately makes it feel less cool. Improper closure of the cold/heat air door: Inside the air conditioning system assembly, the cold/heat air door does not close tightly. This is related to the vehicle assembly process, such as installing the heater control cable. The control knob must be turned to the extreme end of either the heating or cooling position; otherwise, the air door will not close properly. The luxury version does not have this issue because it uses an electronic actuator. However, in the luxury version, if the air door does not close completely, hot air leakage can occur, making the air conditioning less cool.
I've been driving the Baojun 730 for a while and have also experienced the issue with the rear air conditioning not cooling. Common causes include insufficient refrigerant or leaks, resulting in low system pressure; the rear AC blower might be faulty or the fan blades stuck, preventing cold air from blowing out; or the filter might be severely clogged, blocking the air ducts. That time when I took friends on a trip, the back seats were so hot everyone was sweating. A check at the 4S store revealed the refrigerant had completely leaked out, and topping up some R134a fixed the issue. Also, pay attention to the electrical components—the rear AC switch or controller might have poor contact. The Baojun 730 has an independent rear air conditioning system, so if the cooling compressor isn’t working, it can affect the whole system. During regular maintenance, I make it a habit to clean the filter and check the pressure periodically to prevent issues. After all, we rely heavily on AC in summer, and delaying repairs can increase fuel consumption and compromise safety.
As someone who often repairs cars myself, I've analyzed several factors for the rear AC not cooling in the Baojun 730. The core issue lies in the refrigeration system - insufficient refrigerant is the most common problem, requiring professional equipment to check pressure. It could also be a faulty rear blower motor or loose belt. If the AC compressor malfunctions, the rear cooling won't work. On the electrical side, the rear AC control module or relay might be damaged. Blocked air ducts or dirty filters can also affect cold airflow. I suggest starting with simple checks: inspect the refrigerant's high/low pressure status and listen for blower operation sounds; use a multimeter to test electrical connections. The Baojun 730's rear AC design has many independent components - during repairs, consider the entire system's coordination to avoid fixing only local issues while neglecting root causes. Regular maintenance is key to prevent worsening failures.
I've been driving for many years, and it's quite common for the rear air conditioning in the Baojun 730 to stop cooling. The reasons are usually nothing more than the refrigerant leaking out or a system blockage; the fan blades being stuck or the motor burned out; or the electrical fuse being blown or the switch broken. Last time I encountered this, the back seats were extremely hot, and upon inspection, I found the filter was severely clogged with dust. After cleaning it, it worked fine again. I suggest not tinkering with it yourself—go to a professional for repairs, safety first. Remember to regularly maintain and clean the filter; don't wait until there's a problem to act. It's also better for the car's lifespan.
