Visual/Physical Inspection

Inspect for aftermarket devices which could affect the operation of the HVAC System. Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. Check for proper coolant level and condition. The following conditions may cause window fogging:

• Wet carpet or mats.
• High humidity.
• Interior water leak.
• Maximum passenger capacity.
• Blocked body pressure relief valves.
• Inspect the air distribution system for blocked or damaged air inlet or outlet vents.