What are the reasons for the Baojun air conditioner not cooling?
3 Answers
Possible reasons include system failure or temperature zone shutdown. Below are detailed causes and solutions: 1. System failure: If a specific temperature zone is not cooling and the solenoid valve is functioning normally, it can be determined as a system issue. Solution: Further system diagnosis is required. 2. Temperature zone shutdown: Currently, there are two display methods for shutdown. One is when a temperature zone is turned off, the temperature for that zone is not displayed. The other is when a temperature zone is turned off, it shows "OF". Solution: Check if any temperature zones are turned off. 3. Sensor failure: If a specific temperature zone, such as the refrigerator or variable temperature compartment, is not cooling. Solution: Check if the sensor parameters for that zone are normal.
I've been driving the Baojun 530 for three years and have also experienced sudden AC failure. The most common issue is refrigerant leakage - the condenser at the front can get damaged by stones causing leaks, or pipe joints may deteriorate with age. Compressor failure is another headache; you might hear clicking noises during startup or the belt spinning without engagement. Another possibility is an AC filter so clogged it's like a thick wall blocking airflow, which obviously prevents cooling. Electrical issues could also be the culprit - a faulty pressure switch, broken thermostat, or non-working fan (I once fixed mine by replacing the fan resistor). My advice: first check the high/low pressure pipes. If they're ice-cold but the temperature isn't right, it's likely a refrigerant issue. If the pipes aren't cold at all, head to a repair shop immediately to check the compressor or electrical components - these aren't DIY fixes.
My friend's repair shop often handles Baojun air conditioning cases, and when it's not cooling, it's usually one of a few common issues. Insufficient or leaking refrigerant is the most frequent problem, followed by faults in the compressor's electromagnetic coil or clutch failure. The cooling system also needs checking—if the condenser in front of the radiator is too dirty or clogged, or if the cooling fan isn't spinning or isn't spinning fast enough, it affects cooling efficiency. A blocked expansion valve or a malfunctioning temperature sensor can also cause the AC to stop working entirely. On the electrical side, issues like a burnt-out AC relay, blown fuse, or poor contact in the control panel buttons are possible. In older piping systems, poor seals or ice blockages can occur. These problems need to be systematically ruled out, starting with the simplest checks—testing refrigerant pressure, inspecting filters and the condenser—before moving on to electrical circuits and the compressor if necessary.
