Warning What does this mean?

Your system is down or running degraded, but this is not an immediate safety danger. Work through the safe steps below.

Solis Inverter NO-GRID Error: Meaning, Causes & Safe Fix

Your Solis inverter cannot detect any voltage from the utility grid, so it has stopped. This is most often a tripped breaker, a switched-off grid switch, or a grid outage.

What should I do first?

Two quick questions — we'll point you to the right starting point.

Is this code still showing on your inverter's display?

What this code means

NO-GRID means 'no grid voltage.' A grid-tied inverter must see a healthy AC grid before it feeds power. When it detects zero grid voltage, it shuts down output and raises this alarm.

What is this downtime costing you?

Rough estimate while your system isn't producing. Adjust the numbers to match your setup.

System size (kW) Peak sun hours / day Electricity rate ($/kWh)

–per day

–per week

–per 30 days

≈ – kWh of lost production per day.

Estimate only — assumes ~80% real-world output vs. nameplate. Actual losses depend on weather, shading, panel direction, and your tariff.

Common causes

Grid switch or AC breaker switched off or tripped
Utility grid outage in your area
Loose or faulty AC connection at the inverter terminal

Safe steps to try

Work top to bottom, ticking off each step as you complete it. 0 of 5 done.

Check whether your home has grid power — if the whole area is out, it is a utility outage, just wait
Check the AC breaker and grid switch for the inverter and make sure they are ON (reset once if tripped)
Note the exact alarm message shown on the LCD
Restart the inverter: AC grid switch OFF, DC isolator OFF, wait 5 minutes, DC isolator ON, AC grid switch ON
If the code persists while grid power is present, contact your installer

Is your inverter still under warranty?

Before paying for a repair, check — your installer may fix this free.

Brand Year installed

Based on typical standard warranty terms — always confirm with your warranty card or installer paperwork, as terms vary by model, region, and purchase date.

When to call an electrician

Call an electrician if the breaker trips again immediately, if you smell burning, or if the inverter shows NO-GRID while the rest of your home has power — the AC wiring needs professional checking.

Frequently asked questions

Will my inverter be damaged by a grid outage?

No. A grid-tied inverter is designed to shut down without grid voltage (anti-islanding). It will resume automatically when the grid returns.

Should I check if my neighbors have power?

Yes — that's the first thing to check. If the whole street is out, it's a utility issue; just wait for power to return.

The breaker tripped — can I just flip it back on?

You can reset a tripped breaker once. If it trips again immediately, leave it off and call an electrician — something is wrong in the circuit.

Need a professional?

This fault may need professional diagnosis. Contact a qualified solar electrician in your area.

Sources: meaning and troubleshooting verified against the manufacturer's documentation — Solis S5-GR3P(3-13)K Three Phase Inverter User Manual (Ginlong Solis), Table 9.1