THOR Manufacturing Inc. 7050 W Palmetto Park Rd Suite 15 • Boca Raton, FL 33433
Phone: 1-866-955-THOR (8467)
www.THORpowerproducts.com
TROUBLESHOOTING
NOTE
: Before removing and replacing the Converter/charger, perform the following checks:
a.
Disconnect the AC power from the vehicle/device.
b.
Disconnect the wiring and Battery from the Converter Positive
+
output terminal.
c.
Re-connect the AC power to energize the Converter.
d.
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:
CONDITION
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.
‘Reversed-Battery’ Fuses
Chassis Bonding Lug
12 VDC Output Terminals
AIR FLOW FAN
(on back-side)
.
.
.
.
Blows air out of
front grill vents.
