Trouble-shooting Answer to question
When the remained water is frozen
Prevent the freezing (be sure to discharge the water completely after using)
After complete draining, set the "WASH SELECTOR" at "GENTLE" or "STANDARD". If it is set at "DRAIN", it will be rather difficult for the frozen water to melt.
When the water is frozen
Pour hot water below 50 
into the wash tub to soak it completely. Then turn the pulsator with hands gently. Please confirm the drainage can work normally before next using.
Below 50 c 
2~3L
14