SolarEdge inverter and battery troubleshooting guide

What do the different LED lights on my SolarEdge inverter mean?

Your screenless SolarEdge inverter features three colour-coded indicator lights that show your system’s current operating status:

🟢 Green Light: Indicates your solar energy system is actively producing power. If it is flashing green, the system is connected to the grid but is not currently generating energy (for example, during the initialization phase or at dawn/dusk).

🔵 Blue Light: Indicates active network communication with the SolarEdge monitoring platform. If this light is off, your system is not sending data to your app.

🔴 Red Light: Indicates a system error or fault that requires immediate attention.

What does it mean if all the lights on my inverter are completely off?

Check whether all the lgihts are off, or if the green LED is slowly flashing. If the green LED is slowly flashing this is perfectly normal overnight as the inverter is in night Mode.

However, if it is broad daylight and no lights are visible, please complete the following basic checks:

1. Check that the inverter’s main red toggle switch and Rotary AC Isolator is turned to the ON position.

2. Check your home consumer unit (fuse box) or solar subpanel to ensure that the solar breaker switch has not tripped and is switched fully ON.

What lights should be on on my inverter?

For a perfectly working system during a sunny day, you want to see a Solid Green Light + Solid Blue Light. This visual combination means your solar panels are successfully generating green energy for your home, and the system is reliably sending data to your mySolarEdge app.

What should I do if my inverter shows a red light?

A red light indicates that your system has encountered a fault. We recommend that you try a safe system restart to see if it clears the error (see the restart guide below).

If the red light stays on after the reboot, please avoid adjusting any internal wiring and contact your support team so a technician can investigate.

How do I reconnect my domestic inverter to my home Wi-Fi?

If your domestic system has lost its internet connection, you can reconnect it to your local Wi-Fi network using the mySolarEdge app by following these steps:

If your domestic system has lost its internet connection, you can reconnect it to your local Wi-Fi network using the mySolarEdge app by following these steps:

1. Ensure your home Wi-Fi is active and that you have your network password handy.

2. Stand next to your inverter and open the mySolarEdge app on your smartphone.

3. Tap on ‘Set up communication’ within the menu.

4. Use your phone’s camera to scan the QR code sticker located on the side of the inverter.

Follow the on-screen prompts in the app to select your home Wi-Fi network, input your network password, and complete the connection link.

How do I reconnect my inverter if it uses a hardwired Ethernet connection?

If your system connects via a physical cable rather than Wi-Fi and the signal drops, try checking the hardware path:

1. Make sure the Ethernet cable is securely clicked into the base of the inverter unit.

2. Trace the cable back to your internet router and ensure it is firmly plugged into one of the active LAN ports.

3. If everything is plugged in but there is still no signal, try unplugging your home internet router, waiting 30 seconds, and plugging it back in to refresh the connection.

How do we re-establish monitoring communications for a commercial solar setup?

Commercial communication setups often rely on local plant networks or dedicated router configurations. If data drops:

1. Check the main network switch or dedicated communications enclosure associated with the solar plant to ensure all network hardware is powered on.

2. Verify that the network patch cables between the inverter data loggers and the network switch are firmly connected.

3. If your commercial site uses a dedicated SIM card router for solar monitoring, check the signal lights on the router and consider a power cycle of the router unit to refresh the cellular connection.

My SolarEdge Hot Water Controller has lost connection to the inverter. How do I reconnect it?

You can restart and reconnect your Hot Water Controller by following these steps:

1. Locate the red toggle switch on the underside of the hot water controller.

2. Move the toggle switch from its current position to the OFF position (the switch has three positions: On / Off / P).

3. Leave the controller switched off for a couple of minutes to ensure the system is fully discharged.

4. Return the toggle switch to the ON position.

5. Allow a couple of minutes for the controller and inverter to re-establish their connection.

Note: If the reconnection fails, please note which lights are showing on the unit, take a clear photo of the sticker on the side of the hot water controller, and contact support.

My battery has stopped communicating with my inverter. What should I do?

When a battery stops communicating, it cannot function properly. You can attempt to reconnect your battery to the inverter using the following shutdown and restart sequence:

1. Turn the red toggle switch on the bottom left of the inverter to the OFF/O position.

2. Wait 5 minutes.

3. Turn the AC isolator switch or breaker for the inverter to the OFF position.

4. Move the battery’s toggle switch to the OFF/0 position (this switch is located within the panel on the side of the battery).

5. Turn OFF the battery’s breaker switch.

6. Wait 2 minutes.

7. Turn ON the battery’s breaker switch.

8. Move the battery’s toggle switch to the P position, hold it there for 15 seconds, and then release it.

9. Turn ON the AC supply/isolator to the inverter.

10. Turn the red toggle switch on the bottom left of the inverter back to the ON/I position.

How do I safely turn off and restart my SolarEdge inverter?

If you need to complete a full system shutdown and reboot of your inverter, follow these specific steps:

To turn the inverter OFF:

1. Turn the red toggle switch located on the underside of the inverter unit to the OFF position.

2. Wait a few minutes to allow the inverter to fully turn off.

3. Switch off any DC isolator switches (usually black switches connected between your inverter and solar panels). Note: Some systems do not have a separate DC isolator because the inverter itself acts as an isolator when turned off.

4. Turn off the AC isolator switch (typically a red and yellow rotary switch clearly labelled ‘AC Isolator’).

To turn the inverter back ON:

Simply complete the process in reverse:

1. Turn the AC isolator switch ON.

2. Turn the DC isolator switch ON (if your system has one).

3. Turn the red toggle switch on the underside of the inverter to ON.

Why is my battery discharging or declining during the winter, and how can I protect its warranty?

During the colder, darker months (typically November to February), your solar panels may not produce enough generation to keep the battery charged. If a battery is left empty and continues to decline over a long period, it can completely stop functioning and potentially void your product warranty.

To keep the battery healthy and prolong its lifespan, your winter charge programme can be updated so that the battery draws a minimal charge from the grid for a few hours every two weeks. To enable this protection, log into your mySolarEdge app, navigate to the battery energy manager settings, and ensure it is set to “Installer selection” so your provider can push the necessary updates remotely. Contact us once you have done this and we will be able to enable a charge profile that tops up your battery weekly.

How often should I clean the fans on my Synergy solar unit, and how do I do it?

To clear out accumulated debris and prevent your system from overheating, it is highly recommended to clean the external fan on each Synergy unit every 3 months.

• If the fan is easily accessible: Use a soft brush or a can of compressed air to clear any dust and obstructions away from the fan area.

• If the fan is inaccessible or tightly enclosed: Do not attempt to force access. Please contact your technical support team to arrange a maintenance check.

Where can I complete a SolarEdge monitoring site transfer when moving or changing ownership?

To transfer system monitoring to a new owner or account, you can submit an official request directly online by visiting the dedicated SolarEdge transfer page at: https://www.solaredge.com/site-transfer.

During the application process, you will be asked to provide your installation company details:

• Installer ID: 105

• Installer Name: Good Energy Services Ltd

What information should I have ready when contacting technical support about a solar system fault?

To help the support team diagnose your issue as quickly as possible, please try to gather the following details before reaching out:

• Your full name and installation address.

• A brief description of the issue (e.g., “Inverter screen is blank”, “App says communication error”).

• Clear photographs of any error messages on the equipment display screen or any specific light sequences flashing on the front of the units.

• A photo of any manufacturer stickers or serial numbers located on the side of the affected components.