HVAC System - Manual - Trouble Shooting

• A/C System Diagnosis
  • Rapid Compressor Clutch Cycling
  • Compressor Will Not Engage
  • Temperature Is Too High With A/C On
  • Low Side Pressure Is Low-To-Normal & High Side Pressure Is Low
  • Low Side Pressure Is High-To-Normal & High Side Pressure Is High
  • Low Side Pressure Is High & High Side Pressure Is Low
  • Low Side Pressure Is Low & High Side Pressure Is High
• Blower Motor Diagnosis
  • Blower Motor Inoperative
  • Blower Not Operating In All Speeds
  • Blower Motor Vibration
  • Blower Motor Noise
• Vacuum Control System Diagnosis
  • Vacuum Control One-Way Check Valve
  • Vacuum Controls
• Trouble Shooting