Slimline
™
Power Inverters by Wagan Tech
®
www.wagan.com
13
PROBLEM: Inverter Automatically Shut Down – Fault LED Lit
Reason
Solution
Battery voltage below
#
3720
— 9.5V
#
3720-4
— 20V
#3720-8
— 40V
Charge or replace battery.
Inverter is too hot.
(Thermal protection mode.)
Allow inverter to cool.
Check for adequate ventilation.
Reduce the load on the inverter to
rated continuous power output.
Unit may be defective.
See warranty and call customer service.
Equipment being operated draws too
much power.
Use a higher capacity inverter or do
not use this equipment.
PROBLEM: Continuous Buzzing Sound
Reason
Solution
Input voltage below
#
3720
— 10.5V
#
3720-4
— 21.0V
#3720-8
— 42.0V
Keep input voltage above:
#
3720
— 10.5V
#
3720-4
— 21.0V
#3720-8
— 42.0V
Poor or weak battery condition.
Recharge or replace battery.
Poor or loose cable connection.
Inspect terminals and tighten all
connections.
Inadequate power being delivered to
the inverter or excessive voltage drop.
Use heavier gauge DC cable.
Keep cable length as short as possible.
DISPOSAL/RECYCLING OF INVERTER
Electronic products are known to contain materials that are toxic if improperly
disposed. Contact local authorities for disposal and recycling information.