Worried with Sonos Era 100 Red Light? (Best Ways to Fix!)

If you’re wondering what causes the Sonos Era 100 red light, then continue reading this guide!

The red light of the Era 100 speaker is generally an indication of not setting up your speaker for 30 minutes after performing a factory reset or starting it up for the first time.

If you have already tried rebooting the speaker, but nothing seems to help, stay with our guide to find the resolution.

So, to fix the red light of Sonos Era 100, finalize your system setup, reboot the speaker’s system, and reinstall the Sonos mobile app.

If the issue persists, re-charge the speaker’s battery to maximum and restore the system to factory defaults.

Let’s next try to diagnose exactly what the red light means in your case!

What Causes the Sonos Era 100 Flashing Red Light?

While there can be multiple states of the Sonos product’s LED indicator, the red light comes only in a flashing or alternating state.

Hence, there are two different meanings when you see a red light, so it’s very important to know exactly what your Sonos Era 100 speaker is trying to tell you.

Sonos Era 100 Red Light Indications:
🔴 Flashing Red	The flashing red light occurs after 30 minutes of resetting or turning on a new speaker and not completing the setup in your application.
🔴⚪Flashing Red + White	If the Era 100’s LED cycles from red to white and vice versa, there is an updating problem.

Also, keep in mind that most Sonos products have multiple different indicator lights, including the “Status” lamp on the front, the “Microphone,” and the “Voice Services” light.

The Era 100 speaker may experience a different fault based on the state of the LED lamp, so check on this.

How to Fix Flashing or Alternating Sonos Era 100 Red Light?

Tip: Follow the steps consecutively!

1. Finalize your Sonos Era 100’s Setup

The Sonos Era 100 and any other Sonos product will start flashing in red if left inactive for up to 30 minutes after a system reset.

Well, you can clear out the flashing red state of the speaker by finalizing the setup through the Sonos mobile application and configuring the Era 100’s options.

Follow these instructions to set up the Sonos Era 100 speaker easily:

1. Open the Sonos app and sign in or register a new profile.
2. Select “Add” on the pop-up showing the Era 100 speaker.
3. Complete the speaker’s Wi-Fi setup and add it to a room.
4. Next, follow the remaining instructions to finalize the setup.

How to Add Sonos Era 100 to an Existing System?

If you wish to assign the home speaker with a pre-configured system, follow these steps:

1. Launch the Sonos application on your Android or iOS.
2. Navigate to the “Settings” tab to access your system.
3. Press on the “+ Add Speaker or Component” button.
4. Next, specify the type of Sonos unit you wish to add in.
5. Follow the instructions to assign your Sonos Era 100.

Note: If the setup of the Era 100 was successful, the speaker should start showing up under the section of the specific room.

2. Unplug your Sonos Era for 30 Seconds

The quickest solution for the persistent flashing red light is simply powering off the product for at least half a minute.

This is how long it usually takes for your system to initialize after starting up and to eliminate underlying faults in the audio or the wireless connection of the Sonos Era 100.

Follow these steps to properly power cycle the Sonos Era 100 speaker:

1. Disconnect the supplying cord from Sonos’s rear.
2. Unplug the other end of the speaker from the outlet.
3. Wait for 30–40 seconds while Era is disconnected.
4. Reseat your adapter on both ends to power on Era.
5. Test the Sonos’s functionality and the “Status” lamp.

Quick Tip: Hold Sonos’s action buttons on the top panel while the power cord is disconnected!

3. Inspect Sonos Era 100’s Wi-Fi (Flashing Red & White)

If the Sonos Era 100 speaker’s indicator cycles through red and white color in short intervals, it means that the system has failed to initiate the update.

You might have recently attempted to update the version but due to underlying issues with the network connection, the process failed.

Here’s how to check if the Sonos Era 100 is connected to Wi-Fi:

1. Open the Sonos app on your device and go to “Settings.”
2. Click on the “Manage” button next to the “My System” tile.
3. Select “Network” and tap on the “Update Networks” pane.
4. Follow the on-screen instructions to reconnect Sonos Era.

How to Initiate Sonos Era 100 System Update?

• To start an update through the Sonos app, go to “Settings” → “Manage” → “System Updates” → “Check for Updates” and follow the steps.
• To start an update through the Sonos S1 Controller, go to “Settings” → “System” → “System Settings” → “System Updates” → “Check for Updates.”

Note: The Sonos Era 100 does not feature an Ethernet port so it can’t be wired to the network without a combo adapter.

4. Inspect the Power Supply of Era 100

A red flashing indication on the “Status” or “Battery” light of the Sonos Era 100 can be a prime notification for an underlying charging or servicing fault.

That’s why the next step is to conduct a thorough inspection of the speaker’s hard-wired setup and detect faults with the power supply.

Here are the best solutions against the fluctuating power supply of Sonos Era 100:

• Check for obstructions within the power port of the speaker.
• Install the Sonos speaker in an alternative supplying outlet.
• Inspect the A/C cord of the Sonos Era for damage or faults.
• Remove any third-party equipment or external connectors.

Note: Some of the signs of a fluctuating power supply can be periodic rebooting, powering off, or issues with the “Voice Services” feature of the Sonos Era 100 speaker.

5. Reinstall the Sonos Mobile Application

Perhaps, the Sonos Era 100 has failed to set up due to an underlying problem with the standard Sonos app or the Sonos S1 Controller platform.

To address issues with the speaker, your next step is to reinstall the application cleanly, to erase existing cache or system corruption.

Here’s how to reinstall the Sonos app on most mobile devices:

1. Locate the Sonos app on the homepage of your mobile.
2. Tap and hold the app’s icon until the action menu shows.
3. Select the “Uninstall,” “Delete” or “Remove this App” tile.
4. On Android, open Google Play and press on your profile.
5. Wait until the Sonos app is uninstalled from your device.
6. Download the app through Google Play or the App Store.

Note: If prompted, “Allow” all permissions after the app’s installation!

6. Reset Sonos and Perform Initial Setup

Well, misconfiguring some of the speaker’s settings during the initial setup within the application can be one of the causes of the persistent red light.

Perhaps, restoring your speaker’s settings and completing the initial setup from scratch will resolve the appearance of the red flashing light.

Follow these instructions to factory reset Sonos Era 100 and set it up again:

1. Unplug the power cord from the Sonos Era 100’s back.
2. Press the “Bluetooth” button and reconnect the cord.
3. Continue holding until the “Status” lamp flashes green.
4. Release the button to finalize the product’s factory reset.
5. Open the Sonos app and wait for the “Era 100” pop-up.
6. Choose the “Decline” option and restart the application.
7. Repeat the factory reset and re-add the Sonos speaker.

Note: Remember that not adding the speaker immediately after the reset will require repeating the reset instructions from scratch.

Quick Recap

So, to solve the Sonos Era 100 red light, finalize Sonos’s setup, power off the product, and reinstall the Sonos app from your mobile device.

If the issue persists, inspect your speaker’s network connection and restore the Sonos system to factory defaults.

Follow us for more Sonos Era 100 guides and troubleshooting!