# SolarEdge inverter: grid voltage error — what it means and what to do

This means the inverter measured AC voltage outside the allowed range and stopped producing to protect the system. SolarEdge says the inverter should restart once the voltage returns to normal. Wait, check the app, and contact a professional if it keeps coming back.

## What we see across our fleet

- We have seen this fault on 270 SolarEdge systems, 3% of the 8,871 SolarEdge systems we monitor (last 12 months).
- Once it appears, the system usually clears it in about 29.3 hours (median), and 4.7% clear within 24 hours.
- Replacement cases on record involve these SolarEdge models: U650-1GM4MRMU-A05 (371), USE11400H-USSKBEZ8 (365), SE7600H-USMNUBL75 (118), NX13000T-US00UCYN4 (84), SE10000H-USMNUBL75 (61).
- Source: Otovo fleet monitoring and service records, data through October 2026.

## Common causes

- Utility voltage is temporarily too high or too low.
- Voltage is high at your home because of local grid conditions or the length of the AC wiring.
- The inverter's country or grid setting is wrong.
- The AC connection to the inverter has a problem.

## Safe steps to try

1. **Note the alert** Record the alert, the time, and whether it says voltage too high or too low.
2. **Wait for the grid to settle** Give the inverter some time to restart on its own and recheck the app.
3. **Check the breaker** Make sure the solar breaker in your panel is on. If it is off, switch it on once only.
4. **Look for a pattern** If the error recurs at the same time each day, tell the technician. That helps them decide whether to involve the utility.

## When to call a professional

Otovo services these systems and can diagnose this fault for you. Call if the error keeps returning. Settings, wiring, and conversations with the grid operator about protection values should be handled by a qualified technician.

## Frequently asked questions

### Can I fix this myself?

Usually it is a matter of waiting. Do not change inverter settings or open the inverter.

### Is it a safety issue?

The inverter stops on its own when voltage is out of range, which is designed behavior.

### Do I need to call the utility?

If it keeps happening, a technician can check and consult the grid operator if needed.

Canonical page: https://otovo.com/repair/solaredge/grid-voltage