Reference – Error Codes
EI Residential Solar Solution Installation Manual |
45
Code
Fault
Tigo Fault
What To Do
IE 012
RC OCP fault
Overcurrent
protection fault
Check DC input and AC output impedance and wait for
the system to return to normal.
IE 013
Isolation fault
Insulation fault 1.
Wait for the system to return to normal.
2.
Check wire insulation for damage.
IE 014
Temp over fault
Temperature
fault
Check if ambient temperature exceeds the equipment
limits. If exceeded, move or shade equipment. See
installation requirements.
IE 015
Bat Con Dir fault Battery
connection
fault
Check for reversed battery input lines.
IE 017
EPS (off-grid)
overload fault
EPS (off-grid)
overload fault
Shutdown the device drawing excessive power and
restart the inverter.
IE 018
Overload fault
On-grid mode
overload fault
Shutdown the device drawing excessive power and
restart the inverter.
IE 019
PV conn dir fault PV direction
fault
Check if PV input lines are reversed.
IE 020
BatPowerLow
Battery power
low fault
1.
Shutdown the device drawing excessive power and
restart the inverter.
2.
Charge the battery to a level higher than the
minimum protection capacity or protection voltage.
IE 021
Low temp
Low
temperature
fault
Check if the ambient temperature is too low.
IE 023
Charger relay fault Charge relay
fault
Restart the inverter.
IE 024
BMS lost
Battery
communication
fault
Check communication cables between the battery and the
inverter are properly connected.
IE 025
Inter comms fault Internal
communication
fault
Shut down the PV array, battery, and grid and reconnect
the system.
IE 026
Fan fault
Fan fault
Check for foreign matter that could cause the fan to
function improperly.
IE 027
Earth relay fault
EPS (off-grid)
earth relay
fault
Restart the inverter.
IE 028
Internal error
Internal error Shut down the PV array, battery, and grid and reconnect
the system.
