SAFARI STORME MY14

HVAC 37 HVAC Step Inspection Action 13 Inspect piping connections for looseness Are piping connections loose? Yes Tighten connections to specified torque. If the vane makes a noise, add 10ml of compressor oil to the A/C compressor. Verify that the noise is no longer heard. Adjust refrigerant to specified amounts. No If the vane makes a noise, add 10ml of com- pressor oil to the A/C compressor. Verify that the noise is no longer heard. Adjust refrigerant to specified amounts. 14 Verify whether malfunction is in expansion valve, air mix and compressor oil or elsewhere Does UHIULJHUDQW¶V KLJK -pressure value hardly increases? Yes Go to next step. (Pressure hardly increases.) No Go to step 17. 15 Verify whether a malfunction is in compressor oil amount and a/c compressor or elsewhere when engine is racing, Does high- pressure value increase? Yes Return to step 3. No Go to next step 16 Verify whether malfunctions is in compressor oil amount or a/c compressor after compressor oil is replenished each 10 ml, Does high-pressure value increase? Yes Troubleshooting completed. (Explain to cus- tomer that cause was insufficient compressor oil.) No Replace A/C compressor. (Cause is defective AC compressor) 17 Verify whether malfunction is in expansion valve or elsewhere Is only refrigerant low-pressure val- ue high? Yes Go to step 20. No Go to next step 18 Verify that air mix is installed se- curely and properly Are heater XQLW¶V DLU PL[ OLQNV DLU PL[ FUDQNV and air mix rods securely and properly installed? Yes Go to next step No Repair or install links, cranks and rods securely in proper position. 19 Verify that expansion valve heat- sensing tube within cooling unit is positioned securely and correctly Is expansion valve heat-sensing tube within cooling unit securely installed in proper position? Yes Replace expansion valve, then go to next step. (Since valve opens too much, replacement is necessary.) No Install heat-sensing tube securely in proper po- sition, then go to next step. 20 Verify that malfunction symptom occurs after repair Does cool air blow out? (Are results of refriger- ant system performance test okay?) Yes Troubleshooting completed. Explain repairs to customer. No Recheck malfunction symptoms, then repeat from step 1 if malfunction recurs.