Work Flow

DIAGNOSIS AND REPAIR WORK FLOW


Work Flow


OVERALL SEQUENCE






DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
Interview the symptom to the customer.
- GO TO 2.
2.SYMPTOM CHECK
Check the symptom from the customer's information. Check that any symptom occurs other than the interviewed symptom.
Insufficient cooling/heating-GO TO 3.
Refrigerant leakage-GO TO 6.
Noise - GO TO 7.
3.CONTROL SYSTEM DIAGNOSIS
Perform the system diagnosis for the A/C control system. Without 7 Inch Display (WITHOUT 7 INCH DISPLAY) or With 7 Inch Display (WITH 7 INCH DISPLAY).
Is A/C control system normal?
YES - GO TO 4.
NO - GO TO 8.
4.PERFORMANCE TEST
Perform the performance test. Check the operation of each part. Performance Test.
- GO TO 5.
5.TROUBLE DIAGNOSIS FOR UNUSUAL PRESSURE
Diagnose using a manifold gauge whenever system's high and/or low side pressure(s) is/are unusual. Specify the malfunctioning part. Symptom Table.
Low refrigerant charge-GO TO 6.
Except above-GO TO 8.
6.CHECK REFRIGERANT FOR LEAKAGES
Check refrigerant for leakages. Specify the malfunctioning part. Leak Test.
- GO TO 8.
7.TROUBLE DIAGNOSIS FOR NOISE
Perform trouble diagnosis for noise. Specify the malfunctioning part. Noise.
- GO TO 8.
8.MALFUNCTION PART REPAIR
Repair or replace the malfunctioning part.
- GO TO 9.
9.REPAIR CHECK (OPERATION CHECK)
Check the operation of each part.
Does it operate normally?
YES - INSPECTION END
NO - GO TO 2.