What problems can excessive pressure in a car's air conditioning system cause?

[DelIsabel]

Excessive pressure in a car's air conditioning system can lead to the following issues: 1. Reduced cooling efficiency; 2. Increased working pressure on the compressor causing it to overheat, resulting in intermittent operation or complete failure. The causes of excessive pressure in a car's air conditioning system include: 1. Thorough vacuuming during maintenance introducing air into the system, raising condensation pressure; 2. Use of low-quality refrigerant; 3. Overcharging of refrigerant; 4. Failure of the condenser's electric fan to activate or insufficient fan speed; 5. Obstruction of the condenser preventing proper heat dissipation; 6. Blockage or malfunction of the system's expansion valve.