Important: Review the system operation in order to familiarize yourself with the system functions. Refer to Control Assembly Description .
• | Inspect for aftermarket devices which could affect the operation of the HVAC System. Refer to Checking Aftermarket Accessories |
• | Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom. |
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
• | Defrosting Insufficient in Heating, Ventilation and Air Conditioning. |
• | Heating Insufficient in Heating, Ventilation and Air Conditioning. |
• | Noise Diagnosis - Blower Motor in Heating, Ventilation and Air Conditioning. |
• | Noise Diagnosis - Air Conditioning (A/C) System in Heating, Ventilation and Air Conditioning. |
• | Odor Diagnosis in Heating, Ventilation and Air Conditioning. |