instruction manual

In Case of Trouble

Click on the description of a problem below to show the solutions and further information.

Beverage leakage occurs.
The lid does not open. (MCZ-D/E)
  • There are cases when the pressure inside the main body decreases, making it difficult to open the lid. If this occurs, loosen the stopper and then retighten it.
The open button cannot be pressed. (MCZ-D/F)
  • Has too much beverage been added? Do not continue pressing the open button. Remove the inner stopper and pour out a small amount of the beverage.
  • The open button can be too tight to press if the main body has been shaken with hot water inside. If this occurs, loosen the inner stopper, press the open button, and retighten the inner stopper.
The product makes a whooshing sound when the open button is pressed. (MCZ-D/F)
  • This is the sound of air being released and is normal.
It does not keep beverages warm (cool).
  • Was the product dropped or subjected to a strong impact?
  • When cleaning the product, was strong pressure applied to the inside of the main body, or was a metal scrubbing brush or similar item used?
  • Is there only a small amount of beverage in the product? When the amount of beverage is small, full heat (cold) retention performance may not be obtained.
  • In harsh environments such as cold regions or when the ambient temperature is high, sufficient heat (cold) retention performance may not be obtained.
There is an unusual odor coming from the inside of the main body, stopper unit, or cup unit.
There is a rattling sound when the product is shaken.
  • There may be a sound caused by rubbing of a part of the metal foil used inside the main body to increase the heat (cold) retention effects. However, this does not signify a problem and does not affect performance.
There are straight or wavy marks on the plastic parts.
  • These are marks from when the plastic was molded and do not affect quality during use.
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