NANO

856 HVAC (b) Manifold gauge will show following readings under Insufficient Refrigerant condition: Troubleshooting chart for above condition: Symptom Problem Cause / Reason Remedy Insufficient cooling and Pressure on both the 1. Refrigerant quantity 1. Add refrigerant bubbles observed in low pressure side and too small sight glass high pressure side is low 2. Gas leakage 2. Check for leakage and repair if necessary (c) Manifold gauge will show following readings if refrigerant fails to circulate in the system: Troubleshooting chart for above condition: Symptom Problem Cause / Reason Remedy No cooling experienced Vacuum is indicated on Clogging of AC cycle Check and clean or replace and temperature low pressure side parts such as receiver difference exists between dryer, expansion valve inside pipe and outside which may possibly clog. pipe of the defective part Be sure to evacuate the air after finishing the remedy.