90548011 VEC054D INVERTER.qxp 3/6/09 10:41 AM Page 11
Fault Protection and Troubleshooting Guide
INVERTER POWER SWITCH TURNED ON
Trouble/Indication
Possible Cause
Suggested Remedy
No AC output — | DC input is below 10 volts | Recharge or replace battery. |
red LED lit |
|
|
| Excessive appliance load | Turn unit OFF. Reduce the load, wait for the |
| — thermal shutdown | inverter to cool down, then turn the unit ON |
|
| again. |
No AC output — | Fuse(s) open | Check DC input — fuse(s) in vehicle. Replace |
green LED not lit |
| the fuse with one of the same type and |
|
| rating if necessary. |
Low battery alarm | Low battery voltage | Recharge battery. Remove load from the |
sounds continuously |
| inverter while recharging battery. |
| Bad connection or wiring | Tighten all DC connections. |
Motorized power tool | Excessive | If appliance does not start, appliance is |
will not start |
| drawing excessive current and will not work |
|
| with inverter. |
Motorized power tool | Purely inductive load | Make the load not purely inductive. Operate |
does not operate at |
| an incandescent lamp at the same time as |
correct speed |
| motor. |
Television/radio | Snow in picture, | Keep inverter and antenna distant from each |
interference | “buzzing” sound | other. Use shielded antenna. Connect antenna |
|
| to amplifier. |
|
|
|
Resetting the Unit
When a thermal shutdown problem occurs, the inverter will reset and turn back on automatically after it cools.
WARNING: To reduce the risk of injury or property damage: If the appliance stops working, even momentarily, turn off the appliance and disconnect from the inverter until the cause is identified and corrected.
CARE AND MAINTENANCE
Storage
1.Ideal storage temperature range is
2.Store and use the inverter in a cool, dry place with adequate ventilation.
3.Avoid locations that are exposed to heating units, radiators, direct sunlight or excessive humidity or dampness.
Fuse Replacement
This inverter is equipped with multiple internal fuses. Normally, these fuses will not “blow” unless there is a serious problem inside the unit. Internal fuses are replaceable; however, only trained personnel should attempt fuse replacement. Refer to the “Service Information” section of this Instruction Manual.
Preventive Maintenance
Inverters require minimal maintenance. For optimum performance, the manufacturer recommends periodically performing the following preventive maintenance.
1.Turn OFF the inverter using the front panel ON/OFF Power Switch.
2.Remove the DC power fuse.
3.Check and tighten all electrical connections, including the ground.
4.Using a
5.Clean the outside of the unit using a damp (not wet) cloth.
6.Wipe unit surfaces thoroughly with a dry cloth.
7.
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