MSH-M Series Manual

Page 42
© 2013 Magnum Energy, Inc.
Maintenance and Troubleshooting
4.4 Performing an Inverter Reset
To perform an inverter reset (also known as a “soft reset”):
1. First, ensure all AC power (i.e., shorepower or generator) is removed from the inverter’s input.
2. Press and hold the Power ON/OFF pushbutton (see Figure 4-1) for approximately ten (10)
seconds until the Charging/Inverting Status LED comes on and fl ashes rapidly.
3. Once the rapid fl ashing has begun, release the Power ON/OFF pushbutton. The Status LED will
go off after the button is released.
4. After the inverter reset is completed, press the Power ON/OFF button to turn the inverter ON.
Some older inverter models do not allow an inverter reset. If the inverter reset fails, you will need
to perform a power reset using the procedure below. In either case, if an internal fault does not
clear, the inverter will require repair at a Magnum Authorized Service Center (ASC).
Info: The Power ON/OFF pushbutton is a small momentary type switch which operates
by lightly pressing and releasing. Be careful not to apply too much force when pushing
or the switch might break.
Figure 4-1, Performing an Inverter Reset
4.5 Performing a Power Reset
To perform a power reset (also known as a “hard reset”):
1. Remove all AC power (shorepower or generator) to the inverter.
2. Open all the inverter DC disconnects (or disconnect the positive battery cable to the inverter).
3. Ensure the inverter and the remote are disconnected from all AC and DC power (the remote
display will be blank).
4. After the inverter has been disconnected from all power for 30 seconds, reconnect the inverter
DC disconnects (or reconnect the positive battery cable) and resume operation.
Info: If DC disconnects are not used, there may be a momentary spark when the positive
battery cable is connected to the inverter’s terminal. This is normal and indicates that
the inverter’s internal capacitors are being charged.
2. Press and hold the Power
ON/OFF pushbutton.
3. Watch the Charging/Inverting
Status LED. After approximately
10 seconds it should come on
and fl ash rapidly to indicate the
inverter has reset. The Status LED
will go off after the pushbutton is
released.
1. Ensure all AC power
(i.e., shorepower or generator) is
removed from the inverter’s input.