Installation Guide

Error # Single
Phase
Error # Three
Phase
LCD
Message
Description Troubleshooting
40 N/A Islanding
AC grid voltage malfunctions. The inverter has shut off
due to islanding.
When AC voltage returns, the inverter should restart after
some time (time depends on country grid connection codes).
If the problem persists, then consult with thegrid operator
whether frequent AC disruptions have occurred at the site.
43 N/A
Internal HW
Error
Internal hardware error. If the fault persists, contact SolarEdge support.
44 44
No Country
Selected
The inverter is not configured to any country.
Select the country, as described in Country and Grid on page
57.
46
Phase
Unbalance
Change the Phase Balance option in the Inverter’s LCD
menu to Disable. Refer to Power Control on page 61, and to
the SolarEdgePhase Balancing Manual, available on the
SolarEdge website at
http://www.solaredge.us/files/pdfs/phase_balancing_
connection_guide.pdf
N/A 103, 119
UDC Min / DC
Voltage Too
Low
The input DC voltage is below the minimum level that
is supported.
Turn the inverter OFF and then ON. If this fault persists,
contact SolarEdge support.
N/A 49
Communication
Error
Internal software error. If this fault persists, contact SolarEdge support.
N/A 78 Grid Sync Error Grid voltage or frequency is unstable. If this fault persists, contact SolarEdge support.
N/A
91/92/93 (TZ
L1/L2/L3),
AC Over
Current Line
Grid error. If this fault persists, contact SolarEdge support.
Error Codes
SolarEdge-Installation Guide MAN-01-00002-4.0
92