- Solar and energy
- Solar inverter
OV-G-V
Solis OV-G-V on a solar inverter: grid voltage too high
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
The Solis inverter saw grid voltage above its protection limit (OV-G-V, alarm 1010) and stopped feeding in. If it happens now and then, it recovers by itself. If it repeats every day, note the times and tell your installer.
Safety first
Stop and check this first
- Measuring voltage at the AC connector or opening the board is work for an installer or qualified electrician; stick to the app, the display and the breaker position.
- Do not change the grid standard or protection limits yourself: the Solis manual requires the electricity company's consent and the installer or service team does it.
Safe checks you can perform
- Alarm in the app or on the display
- How many times a day it appears
- Visible state of the AC breaker
Leave these tasks to a qualified professional
- Do not attempt this professional task: Voltage measurement at the AC connector
- Do not attempt this professional task: AC connections and cabling
- Do not attempt this professional task: Grid standard and protection points
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Voltage measurement at the AC connector
What they doThe installer compares the voltage the inverter displays with the one measured at the AC connector, with the grid turned off in advanced settings, as Solis describes.
They must show youthe voltage on the display and the voltage measured at the AC connector.
In writingthe values, where they were measured and whether anything was adjusted in the inverter.
AC connections and cabling
What they doChecks loose contacts in the AC connector, board and meter side, and cable length, type and size against the Solis manual.
They must show youclear photos of the AC board and connector, and the cable size and length.
In writingwhat was tightened or changed and the generation test afterwards.
Grid standard and protection points
What they doChecks the selected grid standard and, only with the electricity company's consent, asks Solis service to modify the protection points.
They must show youthe grid standard configured before and after.
In writingthe standard chosen, the values changed and the company's authorisation.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Alarm in the app or on the display
- Who:
- you, with no tools.
- How:
- in the app open the Alarm page, which shows the message, code and solving methods; on models with an LCD, go to Advanced Information with code 0010 and open Alarm Message, as Solis describes.
- Result that matters:
- confirming the alarm is OV-G-V (code 1010) and seeing its times.
- If it appears now and then:
- Solis says it may be a short grid abnormality and the inverter resumes by itself.
- If it repeats often:
- keep the times and move on to the next checks.
- Evidence to keep:
- a screenshot or photo of the alarm with date and time.
Evidence: User Manual for S6 Series Grid Inverter Version 1.1, Release Date: 04,2024 · How do I get to the alarm messages?
How many times a day it appears
- Who:
- you, reviewing the alarm history.
- How:
- count how many times the alarm shows each day and at what times. Solis service separates once or twice a day, which it attributes to an unstable grid, from a continuous error, which needs checking.
- Result that matters:
- knowing whether it is a brief grid issue or a continuous fault.
- If it shows once or twice a day:
- note the times; it is usually the grid and the inverter recovers by itself.
- If it is continuous or the inverter barely generates:
- tell the installer and share the history.
- Evidence to keep:
- the daily count and times of the alarm over several days.
Evidence: 1010 - OV-G-V01 to 05
Visible state of the AC breaker
- Who:
- you, looking at the board without opening covers or touching wires.
- How:
- find the inverter AC breaker and check whether it is on. Solis asks for a check that the AC side breaker and output cable are connected properly; you only look at its position.
- Result that matters:
- ruling out a breaker that is off or keeps tripping.
- If it is on:
- checking wiring and voltage is the installer's job.
- If it is off or keeps tripping:
- do not reset it again and again; call the installer.
- Evidence to keep:
- a photo of the board showing the breaker position.
Evidence: User Manual for S6 Series Grid Inverter Version 1.1, Release Date: 04,2024
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Solar and energy
- Brand
- Solis (Ginlong)
- Product type
- Solar inverter
Known code variants
- Solis alarm 1010
- Solis alarma 1010
- Solis Grid Over Voltage
- Solis OV-G-V
- Solis OV-G-V01
- Solis OV-G-V02
- Solis OV-G-V03
- Solis OV-G-V04
- Solis OV-G-V05
- Solis over grid voltage
- Solis sobretensión de red
What it means
Solis describes OV-G-V (Grid Over Voltage 01 to 05, alarm 1010) as grid voltage above the protection set by the grid standard in the inverter. The S6 manual says that if it occurs by accident it is a short grid abnormality and the inverter resumes by itself. If it is frequent, grid voltage and frequency, the AC breaker and output cable need checking. Solis service adds loose contacts, the selected grid standard and cable length and size (line impedance). The code alone never proves that the inverter is faulty.
Warnings and stop conditions
- Mediumeditorial warning
Measuring voltage at the AC connector or opening the board is work for an installer or qualified electrician; stick to the app, the display and the breaker position.
Evidence: 1010 - OV-G-V01 to 05
- Mediumsource verified
Do not change the grid standard or protection limits yourself: the Solis manual requires the electricity company's consent and the installer or service team does it.
Evidence: User Manual for S6 Series Grid Inverter Version 1.1, Release Date: 04,2024
Symptoms and causes
Probable causes · in order
- Unstable or high grid voltageCommon
If the alarm shows once or twice a day, Solis service attributes it to an unstable grid; the inverter recovers by itself once it sees a normal grid.
Evidence: User Manual for S6 Series Grid Inverter Version 1.1, Release Date: 04,2024 · 1010 - OV-G-V01 to 05
- Cable too long or too thinPossible
Solis asks for the cable length, type and size from inverter to board and meter to be confirmed, because line impedance raises the voltage the inverter sees.
Evidence: 1010 - OV-G-V01 to 05
- Loose contact in the AC connectionPossible
Solis service checks for loose contacts in the AC connector, the AC distribution board and the meter side when the error is continuous.
Evidence: 1010 - OV-G-V01 to 05
- Wrong grid standard selectedPossible
If the grid standard set is not the right one, the protection limits do not fit the local grid. Solis asks for it to be checked and changed with the grid turned off.
Evidence: 1010 - OV-G-V01 to 05
Virtual technician
Does OV-G-V still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
User Manual for S6 Series Grid Inverter Version 1.1, Release Date: 04,2024
Ginlong (Ningbo) Technologies Co., Ltd. (Solis) · 2024 · manual
- 2
How do I get to the alarm messages?
Ginlong (Ningbo) Technologies Co., Ltd. (Solis Service Center) · 2025 · official_doc
- 3
Ginlong (Ningbo) Technologies Co., Ltd. (Solis Service Center) · 2025 · official_doc
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