Photo
![](../../_src/3664/nanimo_1-1.jpg?v=1615553730579)
![](../../_src/3666/nanimo_1-2.jpg?v=1615553730579)
Situation
The impeller does not rotate because the fan belt cannot transmit the motor power due to looseness or deterioration of the belt.
As a result, the exhaust air volume decreases.
It may adversely affect your body.
Such indications
The face velocity decreased. An air volume shortage warning occurs. The interior is smelly.