Trouble Diagnosis

COMBINATION METERS


Trouble Diagnosis


HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform preliminary check. Refer to "PRELIMINARY CHECK".
3. According to the symptom chart, make sure the cause of the symptom and repair or replace applicable parts. Refer to Combination Meter.
4. Does the meter operate normally? If yes, GO TO 5. If no, GO TO 2.
5. INSPECTION END

PRELIMINARY CHECK
1.CHECK OPERATION SELF-DIAGNOSIS MODE OF COMBINATION METER
Perform self-diagnosis mode of combination meter. Refer to Self-Diagnosis Mode of Combination Meter.
Does self-diagnosis mode operate?
YES - GO TO 2.
NO - GO TO 3.
2.CHECK UNIFIED METER AND A/C AMP. (CONSULT-III)
Perform self-diagnosis of unified meter and A/C amp. Refer to Unified Meter and A/C AMP.
Self-diagnostic results content
No malfunction detected INSPECTION END
Malfunction detected Check applicable parts, and repair or replace corresponding parts.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT OF COMBINATION METER
Check power supply and ground circuit of combination meter. Refer to Power Supply and Ground Circuit Inspection.
OK or NG
OK - Replace combination meter.
NG - Repair power supply and ground circuit of combination meter.