Iverter Mulfunction.

Protective Features

The inverter monitors the following conditions:

Low internal battery voltage: The inverter will automatically shut down when the battery voltage drops too low, as this can harm the battery. Possible.

High internal battery voltage: The inverter will automatically shut down when the battery voltage is too high, as this can harm the unit. does not normally happen.

Thermal shutdown protection: The inverter will automatically shut down when the unit becomes overheated. When overloaded as below.

Overload/short circuit protection: The inverter will automatically shut down when an overload or short circuit occurs.

IMPORTANT NOTES: The inverter power indicator will flash red to indicate that one of the above fault conditions is present before automatic shutdown occurs. Should this occur, take the following steps:

1. Disconnect all appliances from the unit.

2. Press the inverter power switch to turn the inverter off (O).

3. Allow the unit to cool down for several minutes.

4. Make sure the combined rating for all appliances plugged into the unit is 500 watts or lower and that appliance cord(s) and plug(s) are not damaged.

5. Assure there is adequate ventilation around the unit before proceeding.

When the unit is powered up and you say the light does not come on, are you referring to the battery indicator? Overloading is a common issue as a 500 watt drill will take more than that when subjected to a load. However a small electrical appliance should prove if the unit functions. If you do not have any success the advice of an electrician would be advised.

Hope that solves your problem. Please mark as helpful if it leads you to a satisfactory solution.Thank you.