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What should I do if the inverter shows an error code or red light?

2026-10-12

The inverter LCD screen or mobile app will display a specific error code. Common faults include: grid over/under voltage, PV insulation fault, over-temperature, fan failure, etc. Please record the error code and troubleshoot according to the manual. If unresolved, contact technical support with the model and error code

What should I do if the inverter will not power on?

What should I do if WiFi cannot connect or disconnects at night?

Related questions

What should I do if the inverter arrives damaged?

Please inspect the package upon delivery. If you find visible damage, deformation, or missing accessories, take photos/videos immediately and contact us. For confirmed shipping damage, we will arrange spare parts reshipment, unit replacement, or refund. Return shipping costs are borne by the responsible party

What should I do if the battery is not charging or charges slowly?

Please check: 1. Whether the PV panels are generating normally (MPPT voltage reading); 2. Whether the battery type setting is correct (lead-acid/lithium); 3. Whether the charging current limit is set too low; 4. Whether battery connections are secure; 5. Whether the battery is already full or in protection mode.

What should I do if the fan is not running or is noisy?

Inverters feature temperature-controlled automatic cooling fans that only operate when needed, running quietly most of the time. If the fan does not work at all, it may be a loose fan cable connection, a defective fan, or a PCB failure

How should I maintain the inverter to ensure longevity?

1. Keep the installation environment well-ventilated and dry; clean the cooling fan and heatsink regularly; 2. Periodically check that terminals are tight; 3. Ensure the display shows normal data; 4. Check waterproof seals for outdoor installations before rainy seasons; 5. We recommend a professional inspection every 6-12 months.

What should I do if WiFi cannot connect or disconnects at night?

1. Confirm the WiFi is 2.4GHz band (5GHz is not supported); 2. Check that the password is correct; 3. Check whether the inverter is set to night low-power mode—if so, it will auto-recover when DC power returns the next day; 4. Restart both the router and the inverter and try again.

What should I do if the inverter will not power on?

Please check: 1. Whether the battery voltage is normal (not depleted); 2. Whether the battery polarity connection is correct—never reverse positive and negative; 3. Whether the DC breaker/fuse is on or blown; 4. Whether PV input is normal. If all checks pass and it still does not power on, please contact technical support.

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