|
|
Low-pressure Side Sometimes Becomes Negative. NLHA0151S05 Gauge indication Refrigerant cycle Probable cause Corrective action Low-pressure side sometimes AC354A + Air conditioning system + The system constantly Refrigerant does not dis- ↓ Moisture is frozen at expan- ↓ Water is mixed with refriger- + Drain water from refriger- + Replace liquid tank. Low-pressure Side Becomes Negative. NLHA0151S06 Gauge indication Refrigerant cycle Probable cause Corrective action Low-pressure side becomes nega- AC362A Liquid tank or front/rear side High-pressure side is closed ↓ Expansion valve or liquid Leave the system at rest + If water is the cause, ini- + If due to foreign particles, + If either of the above + Replace liquid tank. + Check lubricant for con- TROUBLE DIAGNOSES Insufficient Cooling (Cont’d) HA-82 |