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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