- Solar and energy
- Solar inverter
010
Sungrow 010 on a solar inverter: grid power outage detected
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
The Sungrow inverter cannot see the grid (Grid Power Outage) and stops feeding in. Check whether you have power at home and whether the inverter AC breaker is on. It normally reconnects when the grid returns; if it repeats, call your installer.
Safety first
Stop and check this first
- If the AC breaker trips again, do not keep resetting it or open the inverter: call your installer.
- Voltage may still be present in AC side circuits after the indicator is off, as Sungrow warns: do not touch cables or connectors.
Safe checks you can perform
- Code on the display and in iSolarCloud
- Power at home and AC breaker
- Repeat after the grid returns
Leave these tasks to a qualified professional
- Do not attempt this professional task: AC connection inspection
- Do not attempt this professional task: AC breaker and supply check
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.
AC connection inspection
What they doWith the system disconnected, the installer checks that the AC cable is firm and that live and neutral are on the correct terminals.
They must show youphotos of the AC connection and the conductor order.
In writingwhat was checked or corrected and the reconnection test afterwards.
AC breaker and supply check
What they doVerifies that the inverter AC breaker stays connected and that the grid reaches the connection point steadily.
They must show youthe breaker connected and the voltage measured at the connection point.
In writingthe breaker state, the measured values and whether the electricity company was informed.
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.
Code on the display and in iSolarCloud
- Who:
- you, with no tools and without opening the inverter.
- How:
- look at the LED indicator: steady red means a system fault according to Sungrow, and touching it shows the error codes on the display. In the iSolarCloud app go to Records and open Fault Alarm Record to see the detail and time of each alarm.
- Result that matters:
- confirming the code is 010 (Grid Power Outage) and seeing how often and at what times it appears.
- If it appears once and the inverter feeds in again by itself:
- Sungrow says it normally reconnects once the grid returns to normal.
- If it repeats over several days:
- keep the history and move on to the next checks.
- Evidence to keep:
- screenshots of the Fault Alarm Record with date and time and a photo of the LED or display.
Evidence: User Manual 1-Phase PV Grid-Connected Inverter SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS / SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS (SG2.0-6.0RS-UEN-Ver18-202211)
Power at home and AC breaker
- Who:
- you, looking at the board without opening covers or touching wires.
- How:
- check whether the house has power and find the AC breaker labelled for the inverter; see whether it is on.
- Result that matters:
- knowing whether the grid is missing or only the inverter is disconnected.
- If the house has no power:
- the cause is external; wait for the supply to return and the inverter should reconnect by itself.
- If the house has power but the breaker is off:
- switch it on once; if it trips again, leave it off and call the installer.
- Evidence to keep:
- a photo of the board and the time of the outage, if there was one.
Evidence: User Manual 1-Phase PV Grid-Connected Inverter SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS / SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS (SG2.0-6.0RS-UEN-Ver18-202211)
Repeat after the grid returns
- Who:
- you, from the app over the following days.
- How:
- with power at home and the breaker on, watch in iSolarCloud whether the inverter feeds in again and whether code 010 comes back.
- Result that matters:
- telling a one-off outage apart from a fault that repeats while the grid is present.
- If it does not return:
- it was a grid outage and no work is needed.
- If it returns while the house has power:
- it points to the AC connection and the installer should check it.
- Evidence to keep:
- the Fault Alarm Record history for those days.
Evidence: User Manual 1-Phase PV Grid-Connected Inverter SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS / SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS (SG2.0-6.0RS-UEN-Ver18-202211)
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
- Sungrow
- Product type
- Solar inverter
Known code variants
- Sungrow 010
- Sungrow 010 corte de red
- Sungrow 010 power outage
- Sungrow código 10
- Sungrow error 010
- Sungrow fallo 10
- Sungrow fault 10
- Sungrow fault code 10
- Sungrow grid power outage
- Sungrow no grid
- Sungrow sin red
What it means
Sungrow names code 10 Grid Power Outage: the inverter loses the grid at its AC connection and disconnects. The manual says it normally reconnects once the grid returns to normal. If it keeps happening, Sungrow asks for checks that the grid supplies power reliably, that the AC cable is firmly in place and on the correct terminal (live and N wires correctly in place) and that the AC circuit breaker is connected. The code does not separate a utility outage from an open breaker or a loose connection, and alone never proves that a part is faulty.
Warnings and stop conditions
- Mediumeditorial warning
If the AC breaker trips again, do not keep resetting it or open the inverter: call your installer.
Evidence: User Manual 1-Phase PV Grid-Connected Inverter SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS / SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS (SG2.0-6.0RS-UEN-Ver18-202211)
- Lowsource verified
Voltage may still be present in AC side circuits after the indicator is off, as Sungrow warns: do not touch cables or connectors.
Evidence: User Manual 1-Phase PV Grid-Connected Inverter SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS / SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS (SG2.0-6.0RS-UEN-Ver18-202211)
Symptoms and causes
Probable causes · in order
- Outage or unstable gridCommon
The utility grid drops out or does not supply power reliably. You can tell because the house also loses power or there are incidents in the area.
Evidence: User Manual 1-Phase PV Grid-Connected Inverter SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS / SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS (SG2.0-6.0RS-UEN-Ver18-202211)
- AC breaker disconnectedPossible
The inverter AC breaker is off or has tripped. Sungrow asks for a check that the AC circuit breaker is connected.
Evidence: User Manual 1-Phase PV Grid-Connected Inverter SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS / SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS (SG2.0-6.0RS-UEN-Ver18-202211)
- AC cable loose or on the wrong terminalPossible
Sungrow asks for checks that the AC cable is firm and that live and neutral are on the correct terminals, which only the installer should inspect.
Evidence: User Manual 1-Phase PV Grid-Connected Inverter SG2.0RS-S / SG2.5RS-S / SG3.0RS-S / SG3.0RS / SG3.6RS / SG4.0RS / SG5.0RS / SG6.0RS (SG2.0-6.0RS-UEN-Ver18-202211)
Virtual technician
Does 010 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
Sungrow Power Supply Co., Ltd. · 2022 · manual
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