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Restarting or resetting the Wemo Light Switches (Wemo WLS0403 and WLS040)

You can restart or reset your Wemo® WiFi Smart 3-Way Light Switch, WLS0403 and Wemo Light Switch, WLS040 using either the Wemo App (recommended) or physically on the device itself.  This article will walk you through the process.  Click the links below for specific instructions:

Through the Wemo App
Through the external bar

 

Through the Wemo App

NOTE:  The Wemo 3-Way Light Switch is used in the examples below.
 
Step 1:  Open the Wemo App and go to Devices

Step 2:  Tap on the Edit icon located at the top-right corner.  It will change to Done to show that it is in Edit mode. 
 
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Step 3:  Locate the Wemo device you wish to reset and tap on the green arrow to open the specific Device Edit menu. 
 
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Step 4:  On the Edit screen, tap Reset Options.
 
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Step 5:  Tap on either Reset Wi-Fi settings or Erase All Content and Settings.  A dialog box will pop up to verify if this is what you would like to perform. 
 
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Step 6:  Tap on Yes to continue (or Cancel to stop and go back).

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Through the external bar
 
The Wemo Light Switches (Wemo WLS0403 and WLS040) have a dedicated external bar located under the Wemo brand.  To do the restart or reset using the bar, follow the steps below:
 
Step 1:  Remove the faceplate to expose the bar. 
 
Step 2:  Underneath the Wemo brand, there will be a solid white bar to activate the options.  You will see the options RESTART, RESET WIFI and RESTORE.

 
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Step 3:  Depending on which action you want to apply, carefully read the instructions first to know how long you need to hold down the bar:
 
  • RESTART - Press and hold the bar for 2 seconds.  Release the bar when the ring light turns white
 
NOTE:  Don’t hold it for more than 5 seconds, otherwise it will turn blue.  When the ring light turns blue, this means you have just reset your Wi-Fi settings.
 
  • RESET WIFI - Press and hold the bar until the ring light turns blue, then release it.
  • RESTORE (Reset to factory defaults) - Press and hold the bar until the ring light turns red, then release it.  Wait for the Light Switch to reboot.  When the ring light is flashing blue, then the Light Switch is ready for setup.

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