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The Oral-B Black 7000 is an electric toothbrush.

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Is the Pressure Sensor Broken?

The pressure sensor on my toothbrush seems to be broken, it gives constant red light even though the head isn't pressed to anything. Oral-B have asked me to clean the metal pin with warm water to clean up toothpaste build and drain the battery and recharge it again for 24 hours to fix. It doesn't work. Any fixes?

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#1 If this only happens when the toothbrush is on, the pressure sensor plate doesn’t get a connection.

It’s a a little metal spring with two contacts pressing against the motor housing and the contact opens if too much pressure is applied.

Try cleaning these contacts and the opposing area if they still visibly connect. If they are bent, you might have to take apart the whole thing to straighten them.

#2 I had a similar problem where the red light came on even with the toothbrush off, completely draining the battery over night.

Opening it up, it seemed that the metal spring created a short between the upper frame and the battery.

Wrapping the spring in some duct tape seems to have fixed that issue.

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Ahmed Talha さん、ありがとうございました!
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