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Anonymous users2024-01-24The ventilation switch is to suction the air and exhaust it out, but the premise is that you are talking about the ventilation fan, not the heating fan, which is the exhaust air.
Ventilation fan installation steps and use: 1The installation of the ventilation fan must be reliable and firm, and the distance between the ventilation fan and the ground is more than one meter. >>>More
The first situation is when the ventilation fan is blocked by dirty things. If it's blocked, then even if it's still spinning, it will pump very little or even at all. >>>More
It should be a faulty wiring of the ventilation fan, which causes the motor to reverse.
The bathroom has two drain pipes, one for drainage and one for exhaust, and a ventilation fan is installed to drain into that pipe.
Most of the kitchens generally have only one light, just one switch, so it's better to be outside. >>>More