Reference – Error Codes
EI Residential Solar Solution Installation Manual |
44
Error Codes
Troubleshooting must only be performed by qualified personnel.
Error codes appear on inverter and battery displays. The inverter LCD display also includes LEDs
that signal various conditions. Refer to the
The Tigo EI app chat function enables real-time help from a Tigo service agent for the issue you
are experiencing. For error codes not listed or if any problem persists,
Inverter Codes
Code
Fault
Tigo Fault
What To Do
IE 001
TZ protect fault
Overcurrent
fault
1) Wait to see if the system returns to normal.
2) Disconnect PV+/PV- and batteries, then reconnect.
IE 002
Grid lost fault
Grid lost fault Wait to see if power returns and the system reconnects.
Then check if the grid voltage is within normal range.
IE 003
Grid volt fault
Grid voltage
fault
Wait to see if power returns and the system reconnects.
Then check if the grid voltage is within normal range.
IE 004
Grid freq fault
Grid frequency
fault
Wait to see if power returns and the system reconnects.
IE 005
PV volt fault
Pv voltage fault Check the output voltage of the PV modules. If string
voltage is greater than 600V
DC
, shut down the system
and troubleshoot the strings.
IE 006
Bus volt fault
Bus voltage
fault
Restart the inverter and check if V
OC
is in the normal
range. If string voltage is greater than 600V
DC
, shut down
the system and troubleshoot the strings.
IE 007
Bat volt fault
Battery voltage
fault
Check if battery input voltage is in normal range.
IE 008
AC10M volt fault Grid voltage
fault
The system should return to normal when the grid
returns to normal.
IE 009
DCI OCP fault
DCI
overcurrent
protection fault
Wait for the system to return to normal.
IE 011
SW OCP fault
Software
detection of
overcurrent
fault
Wait for the system to return to normal. If it doesn’t:
1.
Shut down photovoltaic, battery and grid connections.
2.
Restart the inverter.
