HVAC System - Manual - Troubleshooting

• Model Identification
• Compressor Applications
• Operational Testing
• Electrical Trouble Shooting
  • Blower Motor Will Not Run
  • Blower Does Not Operate In Hi
  • Blower Operates Only In Hi
  • A/C Does Not Work
• Refrigerant System Diagnosis
  • Insufficient Cooling
    • Notes
    • Quick Check Procedure
    • Thorough Check Procedures
  • V5/TXV System Diagnosis (Step 1)
    • Preliminary Checks
  • V5/VDOT System Diagnosis (Step 1)
    • Preliminary Checks
• Insufficient Cooling Diagnosis Charts - (CCOT)
• Checking Refrigerant Charge - Step 2 - (V5/TXV)
• Checking Compressor Clutch Engagement - Step 3 - (V5/TXV)
• Checking Performance - Step 4 - (V5/TXV)
• Performance Diagnostic Chart - Step 5 - (V5/TXV)
• Diagnostic Code Procedures - Step 6 - (V5/TXV)
• Checking For No Stroke Compressor - Step 7 - (V5/TXV)
• Control Valve Diagnosis - Step 8 - (V5/TXV)
• Checking Refrigerant Charge - Step 2 - (V5/VDOT)
• Checking Compressor Clutch Engagement - Step 3 - (V5/VDOT)
• Checking Performance - Step 4 - (V5/VDOT)
• Right Area Diagnosis & Service - Step 5 - (V5/VDOT)
• Left Area Diagnosis & Service - Step 6 - (V5/VDOT)
• Control Valve Diagnosis - Step 7 - (V5/VDOT)