Rotadent produces electric toothbrushes that can be purchased exclusively from dentists' offices. There are several issues that can arise over time, usually having to do with the head or charging unit. It is not recommended to take apart the sealed handle, as this could result in electric shock or voiding the warranty. Damage by misuse, fire or accident will not be covered, and it is probably most cost-efficient to replace your toothbrush entirely in those situations.
Move your charging unit. If your toothbrush is not turning on and the charging light is off, it could be a problem with the charger, which is easily replaced. To be sure it is not a problem with the outlet or that you have not been charging your device on an outlet attached to a switch, use a different outlet. Fully charge your unit for up to 24 hours, and retry.
Clean your charging post. This is the protruding bit on which the Rotadent rests. If you notice any buildup, remove it by gently scrubbing with a soft cloth. It may help to wipe the base of your toothbrush as well. You can also use electrical contact spray on the area, being sure to remove any excess. Electrical contact spray is compressed air with a cleaning agent and is used to remove dirt and other particles from electrical items.
Replace or clean the head. The removable brush head, featuring the rotating bristles, should be replaced every three to six months. It should also be removed for cleaning after use. To clean, run under warm water for up to a minute, then allow to dry thoroughly before using again. You can also soak the head in warm salt water for five minutes.
Check the tightness of the connections on your Rotadent. The head and base should be securely attached. If you notice rattling during use, the battery compartment has likely gotten loose. Turn the unit tightly clockwise to tighten it.
Check the seal at the top of the case. Over time, the rubber washer inside the toothbrush can compress and weaken, allowing water to get into the unit and short the wires. If you suspect this is the case, check for signs of water damage, such as leaking around the edges. Any water in the unit should be removed by a professional.
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