Help library: Help library: [LG Cord Zero R9] I hear the voice error message 'Bumper sensor problem is found’

[LG Cord Zero R9] I hear the voice error message 'Bumper sensor problem is found’

Troubleshooting Vacuum Cleaners 10/29/2025

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<div class="content-service-view">
<p class="lg-red">※ The error message may be different from the actual message you hear from the product.</p><p class="info-desc">
If the bumper sensor is interfered with during the cleaning session, an error message can occur.<br/>
Check for foreign objects near the nozzle.
</p>

<h2 class="tit">Try this</h2>
<p>
Press the front/left/rear side of the bumper at the nozzle 3 to 5 times and check if you can hear the clicking sound(micro switch) and then turn the Roboking off and on again.
</p>

<div class="img-only">
<img alt="Press the left, right, and front of the bumper around the nozzle /Turn the main switch on and off." src="https://gscs.lge.com:/gscs/support/fileupload/downloadFile.do?fileId=hRPuuK8exO1n9iGIXXdJvQ&amp;portalId=P1"/>
</div>
<p>
※ If you cannot hear the micro switch sounds, or the same error occurs again, have it checked by an LG service technician.
</p><p class="help-txt">This guide was created for all models, so the images or content may be different from your product.</p></div>

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[LG Cord Zero R9] I hear the voice error message 'Bumper sensor problem is found’

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