Troubleshooting Procedure - La Marche ESCR Series Installation And Operation Manual

3.2

Troubleshooting Procedure

Troubleshooting should be performed only by trained service personnel or experienced electricians. Before setting up any
complicated testing, give the unit a general inspection.
Check the following:
1. Check DC output cables, connections, battery type, and number of cells against the unit's rating.
2. Check unit specifications against customer order.
3. Check input connections, input voltage and feeder breaker/fuse.
4. Check any internal wiring, fuses, and breakers.
5. Check for shipping damage, loose connections, broken wires, etc.
6. Certain failures can be caused by defective batteries; make sure batteries are free from defects.
When calling in for a service inquiry or for troubleshooting assistance, be sure to have all of the following information on
hand:
1. Equipment model number and serial number.
2. The measured AC input voltage.
3. The measured DC output voltage with and without the battery.
4. Result of the check of the AC and DC fuses/ breakers.
5. The measured DC output current and voltage, measured with battery and load connected to charger.
NOTE: When ordering replacement parts, drawings, or schematics, always give model number and serial number.
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