81
DC Overload Fault
• Check PV voltage
• Make sure you have not wired more than two (2) solar strings in parallel
System is beeping.
• Check the system alarms menu to see which alarm has been triggered. Most alarms will self-reset
• There is no battery connected. If not using a battery, select “no battery” and disable “activate batt” in
Batt menu.
▪ Turn off the center button, remove AC Grid and PV Power for the 30s (the screen is dead), and then
power up to fully reset the system
Battery cable sparks when connected.
• Put the external battery disconnect in the off position before connecting or disconnecting the
batteries
The battery symbol on the home screen is red.
• The battery is under-Voltage or over-Voltage
The battery symbol on the home screen is yellow.
The battery is low, or the charge/discharge current is close to the programmed limit (which is ok)
The grid symbol on the home screen is yellow.
• Grid parameters are out of specified range, or the grid is down
System has restarted.
• It happens if the system is overloaded, the battery voltage is greater than 500V, or the Software
update
Batteries were connected backward.
• It can cause SEVERE damage! Check the voltage before turning the system on
Why is the LCD screen still on when the power button is off?
• If PV or Grid power, LCD stays on, but the Inverter and loads are off
The Batt % meter is not reaching 100%
• The system needs to go through a small discharge/charge cycle first to calibrate the battery
The generator setup is reading 0Hz.
• Select "General Standard" instead of UL1741. Then widen the frequency range to 55Hz-65Hz.
Color Touchscreen is Frozen
• Press and hold the escape button for 7-10 seconds
Constant F18 Faults while powering loads within specification.
• Click the battery icon on the front of the Inverter and look to see what the AC Output voltage is:
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