gpelectric.com | [page 9]
6. TROUBLESHOOTING
BEFORE removing and replacing the Converter/charger, perform the following checks:
1. Disconnect the AC power from the vehicle/device.
2. Disconnect the wiring and Battery from the Converter Po output terminal.
3. Re-connect the AC power to energize the Converter.
4. Using a voltmeter, measure the voltage at the Converter – and + Output terminals.
> The Converter is OK if the voltage reading is between 13 VDC and 14 VDC
(typically 13.6 VDC).
> Otherwise check the table below:
ISSUE
POSSIBLE CAUSE
No 12 VDC output
• 120 VAC not connected to coach or the coach AC circuit breaker is in the
off
position.
• Reversed battery fuses blown. (Battery wiring connections are reversed),
• Severe overload or shorted load. Remove all loads and retest per above instructions.
•
Converter/Charger internal failure.
Converter cycles On & Off
•
Fan air flow is inadequate or blocked. (1” minimum free air space at each end required)
• Converter/Charger internal failure.
Reversed Battery fuses blown
• Battery wiring connections are reversed.
• Defective battery, possible bad cells.
12 VDC output is too low
• Attached load exceeds rating of the Converter/Charger.
• Defective battery, possible bad cells.
•
Converter/Charger internal failure.
Note
Summary of Contents for GPC-100-MAX
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