EI Inverter (EU) - Fault, Warning and Error Codes

Number

Fault

Tigo Fault

Diagnosis / Solution

IE 001

TZ Protect Fault

Over Current Fault

1. Wait for a while to check if you're back to normal.
2. Disconnect PV+/PV- and batteries, then reconnect.
3. If the problem persists, contact Tigo Support.

IE 002

Grid Lost Fault

Grid Lost Fault

1. Wait to see if power returns and the system reconnects.
2. Check if the grid voltage is within normal range.
3. If the problem persists, contact Tigo Support.

IE 003

Grid Volt Fault

Grid Voltage Fault

1. Wait to see if power returns and the system reconnects.
2. Check if the grid voltage is within normal range.
3. If the problem persists, contact Tigo Support.

IE 004

Grid Freq Fault

Grid Frequency Fault

1. Wait to see if power returns and the system reconnects.
2. If the problem persists, contact Tigo Support.

IE 005

PV Volt Fault

PV Voltage Fault

1. Check the output voltage of the PV modules. If string voltage is greater than 600V_DC, shut down the system and troubleshoot the strings.
2. If the problem persists, contact Tigo Support.

IE 006

Bus Volt Fault

Buss Voltage Fault

1. Press the 'ESC' key to restart the inverter.
2. Check that V_OC is in the normal range. If string voltage is greater than 600V_DC, shut down the system and troubleshoot the strings.
3. If the problem persists, contact Tigo Support.

IE 007

Bat Volt Fault

Battery Voltage Fault

1. Check battery input voltage is in normal range.
2. If the problem persists, contact Tigo Support.

IE 008

AC10M Volt Fault

Grid Voltage Fault

1. System returns to normal when the Grid returns to normal.
2. If the problem persists, contact Tigo Support.

IE 009

DCI OCP Fault

DCI Overcurrent Protection Fault

1. Wait for it to return to normal.
2. If the problem persists, contact Tigo Support.

IE 010

Reserved

IE 011

SW OCP Fault

Software Detection of Overcurrent Fault

1. Wait for the system to return to normal.
2. If does not, shut down photovoltaic, battery and grid connections.
3. Restart the inverter.
4. If the problem persists, contact Tigo Support.

IE 012

RC OCP Fault

Overcurrent Protection Fault

1. Check the impedance of DC input and AC output.
2. Wait for the system to return to normal.
3. If the problem persists, contact Tigo Support.

IE 013

Isolation Fault

Insulation Fault

1. Wait for the system to return to normal.
2. Check wire insulation for damage.
3. If the problem persists, contact Tigo Support.

IE 014

Temp Over Fault

Temperature Fault

1. Check if ambient temperature exceeds the equipment limits. If exceeded, move or shade equipment. See installation requirements.
2. If the problem persists, contact Tigo Support.

IE 015

Bat Con Dir Fault

Battery Connection Fault

1. Check for reversed Battery input lines.
2. If wired properly, contact Tigo Support.

IE 016

Missed CT Fault

-

-

IE 017

EPS(Off-grid) Overload Fault

EPS(Off-Grid) Over Load Fault

1. Shutdown the high-power device in the EPS panel and press the "ESC" key to restart the inverter.
2. If the problem persists, contact Tigo Support.

IE 018

OverLoad Fault

On-Grid Mode Overload Fault

1. Shutdown the high-power device and press the "ESC" key to restart the inverter.
2. If the problem persists, contact Tigo Support.

IE 019

PV Conn Dir Fault

PV Direction Fault

1. Check if the PV input lines are reversed.
2. If wired properly, contact Tigo Support.

IE 020

BatPowerLow

Battery Power Low Fault

1. Shutdown the high-power device and press the "ESC" key to restart the inverter.
2. Charge the battery to a level higher than the protection capacity or protection voltage.
3. If the problem persists, contact Tigo Support.

IE 021

Low Temp

Low Temperature fault

1. Check if the ambient temperature is too low.
2. If temperature is within operating range, contact Tigo Support.

IE 022

Reserved

-

-

IE 023

Charger Relay Fault

Charge Relay Fault

1. Press the "ESC" key to restart the inverter.
2. If the problem persists, contact Tigo Support.

IE 024

BMS Lost

Battery Communication Fault

1. Check communication cables between Battery and Inverter are properly connected.
2. If wired properly, contact Tigo Support.

IE 025

Inter Comms Fault

Internal Communication Fault

1. Shut down PV array, battery, and grid.
2. Reconnect system.
3. If the problem persists, contact Tigo Support.

IE 026

Fan Fault

Fan Fault

1. Check for foreign matter that could cause the fan to function improperly.
2. If no visible reason for Fan Fault, contact Tigo Support.

IE 027

Earth Relay Fault

EPS(Off-Grid) Earth Relay Fault

1. Press the "ESC" key to restart the inverter.
2. If the problem persists, contact Tigo Support.

IE 028

IE 029

RCD Fault

Residual Current Device Fault

1. Check the impedance of DC input and AC output.
2. Disconnect PV+/PV- and batteries, then reconnect.
3. If the problem persists, contact Tigo Support.

IE 030

EPS(Off-grid) Relay Fault

EPS(Off-Grid) Relay Failure

1. Disconnect PV+/PV-, grid and batteries, then reconnect.
2. If the problem persists, contact Tigo Support.

IE 031

Grid Relay Fault

Electrical Relay Failure

1. Disconnect PV+/PV-, grid and batteries, then reconnect.
2. If the problem persists, contact Tigo Support.

IE 032