Low Pressure Too Low & High Pressure Slightly Low

Test Results
1. Air bubbles constantly visible in sight glass.
2. Center vent nozzle temperature too high.

Cause
Air or insufficient refrigerant in system.

Correction
1. Perform leak test, including compressor.
2. Drain air conditioning system.
3. Repair leaks.
4. Replace receiver/dryer.
5. Evacuate A/C system.
6. Fill A/C system.
7. Perform operational test.