Owners Manual

Installation

2.5 Testing the Inverter

Before proceeding, test whether the inverter was successfully installed.

Use the functional test below to test the inverter, and then perform the

GFCI test that follows to ensure the protection device is functioning properly

(if applicable).

2.5.1 Inverter Functional Test

After all electrical connections to the inverter and the batteries have been

completed, plug a small AC load (e.g., 40W light bulb or small appliance) into

the inverter’s AC outlet, and then follow these steps to test the installation

and the inverter’s operation.

• CMW412 inverters:

1. Toggle the ON/OFF Power switch to the ON (I) position to turn the

unit on.

2. The unit’s Power LED will turn on to indicate that AC output power

is available.

3. Check that the AC load is on (i.e., the bulb lights).

• CMW1012 and CMW1512 Inverters:

1. Press and hold the Power/Select button until a beep sound is heard

(about 1 second). The unit’s Status LED turns on.

2. Check that the digital display alternately shows the inverter’s

measured battery voltage and output power.

3. Check that the AC load is on (i.e., the bulb lights).

Note: If the bulb does not light, the GFCI may have tripped. Reset

the GFCI by pressing the RESET button.

If the inverter passes all steps, it is functioning properly and ready for use.

If the inverter fails any of the steps, refer to the troubleshooting information

in Section 4.0.

2.5.2 GFCI Function Test (CMW1012 & CMW1512 models)

Use the steps below to periodically test the GFCI to ensure it is functioning

properly.

1. Turn the inverter on.

2. Plug a small AC load (e.g., 40W light bulb) into the GFCI’s outlet.

3. Check that the AC load is on (i.e., the bulb lights).

4. Press the GFCI’s TEST button. The GFCI’s RESET button should pop out,

and the power should shut off (light bulb goes out).

Note: If the bulb remains lit or the RESET button does not pop out, the

GFCI may not be functioning properly.

5. Press the RESET button. The AC load should come back on (bulb lights

again).