EN
TROUBLE SHOOTING
Problem
Weak vibrations
Loose brush head or abnormal
sound
Shorter operating time with
a charged battery
The toothbrush does not work
CLEANING AND MAINTENANCE
Brush head - After use, rinse with water and dry.
Brush body - Rinse with water and dry. Do not use water warmer than 40 °C or any cleaning agents.
Charging base - Wipe only with a dry cloth. Wet and damp fabrics can cause a short circuit.
Replacing the brush head - Dentists recommend replacing the brush head every 3 months.
Store the device in a dry and dust-free place.
Do not expose to high temperatures.
Keep out of reach of children.
Warning: The device contains a rechargeable lithium battery. Recycle accordingly.
SERVICE CENTRE
Extensive maintenance or repair, which requires access to internal parts of the product, has to be performed by
a qualified service centre.
ENVIRONMENTAL CONCERNS
• Packaging materials and old appliances should be recycled.
• Packaging materials may be disposed of as sorted waste.
• Dispose the plastic bags made of polyethylene (PE) of as sorted waste.
Recycling of the appliance at the end of its lifespan
This appliance is labelled in accordance with European Directive 2012/19/EU concerning used
electrical and electronic appliances (waste electrical and electronic equipment - WEEE). The symbol
on the product or on its packaging indicates that this product may not be treated as household
waste. Instead it should be taken to the appropriate collection point for the recycling of electrical and
electronic equipment. By ensuring this product is disposed of correctly, you will help prevent potential
negative consequences for the environment and human health, which could otherwise be caused by
inappropriate waste handling of this product. The disposal of such material has to be done according
to the recycling regulations. For more detailed information about recycling of this appliance see the
authorized local office or service for household waste disposal or the shop, where you purchased the
appliance.
The product meets all the necessary requirements of the EU directives applicable to the specific product.
Changes in text, design, and technical specifications are subject to change without notice and we reserve the right to
change them.
38
Possible cause
Too much pressure on teeth.
Improperly fitted brush head.
The brush head is damaged.
Charging error.
Empty battery.
Power has run out.
Remedy
Reduce pressure on teeth.
Fit the brush head again.
Replace the brush head.
Charge the toothbrush correctly.
Charge the brush to full charge.
Charge the battery.
ZK4000