(3) The OVERLOAD indicator lights when the inverter is shutdown because of severe overload.
inverter off, remove the load, and turn the inverter on to reset.
(4) LOW BATTERY ALARM. An audible alarm will activate when the battery voltage is 21.5 volts DC.
(5) LOW BATTERY CUTOUT. The low battery cutout will operate when the battery voltage is 20 volts or less.
a. Clean the exterior with a damp cloth to prevent accumulation of dust and dirt. At the same time, tighten the
screws on the DC input terminals with the AGPU battery disconnected.
b. Internal fuse open. Inverter Removed. Eliminate the source of the external excessive load. Remove the inverter
cover and replace the fuse.