2nd October 2019

yourmechanic
17

What causes a car defroster not to work?

A bad heater core will result in no heat, which means a non-functioning defroster. Bad Blower: The heating and defrosting system rely on an electric blower motor to move the hot air into the cabin of the car and through the defroster vents. Issues can range from a blown fuse to a bad blower speed controller.

In respect to this, how does a rear window defogger work?

Hot water will move through the core of the heater while the blower fan pushes the warm air through the vents of the defroster to warm up the windows. The rear window defroster is electrically powered. The lines on the rear window are electrical.

What is the meaning of demister?

A demister is a device often fitted to vapor–liquid separator vessels to enhance the removal of liquid droplets entrained in a vapor stream. Demisters may be a mesh-type coalescer, vane pack or other structure intended to aggregate the mist into droplets that are heavy enough to separate from the vapor stream.
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