Common causes of poor performance and refrigerant leakage

The most common causes of poor performance and refrigerant leakage across mobile air conditioning equipment include:

• Damage to flexible hoses

• Fixed pipe fractures and damage

• Joint integrity, o-ring condition, correct tension

• Condenser fouling and restricted airflow

• Evaporator fouling and restricted airflow

• Compressor shaft seal leakage, dirt ingression, overheating

• Incorrect refrigerant charge (undercharge most common)

• Refrigerant contamination, degradation and non-condensables

• Control system faults