EI Inverter (US) – Tigo Help Center

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

The recommended resolution for system faults, inverter warnings, and inverter faults are provided below. Inverter Warning Codes Inverter Fault Codes System Fault Codes Important: Only qualified... See more

EI Inverter Error Code 203 - PV Isolation Low

Symptoms: The following error message is reported: Error Code 203 - PV Isolation Low. Cause: The inverter has detected a low resistance reading to ground. There is an issue with DC wiring or mo... See more

EI Inverter Error Code 201 - Residual Current High

Symptoms: The EI Inverter log reports the following message: Error Code 201 - Residual Current High Cause The inverter has detected a high residual current indicating that there is an issue with... See more

Tigo EI Inverter - PV Array Ground Fault Troubleshooting

This article contains background information to supplement these articles: EI Inverter Error Code 200 - AFCI Fault EI Inverter Error Code 201 - Residual Current High EI Inverter Error Code 203 - PV... See more

EI Inverter Error Code 200 - AFCI Fault

Symptoms: The EI Inverter reports the following message: Error Code 200 - AFCI Fault. The EI Inverter LED Indicator shows a continuous red fault light accompanied by a loud buzzer. Cause: Th... See more