It is a device that removes the condensed water droplets or ice from the main windscreen, side windows and rear windscreen of a vehicle. Its main function is to clear the windscreen of condensed water thereby improving visibility. This device is also known as 'defroster' or 'demister'.


How do you defrost your back window? Defog & Defrost Car Windows Fast with These Science-Based Tips Turn your heater on. Start your engine, and using the defroster setting, crank the heater up all the way to absorb excess moisture within your vehicle. Press the A/C button. Turn air recirculation off. Crack your windows. Defrost Windows.

how does a rear window defogger work?

The front defogger works by channeling warm air through vents aimed directly at your windshield. The rear defogger works by electrical currents through black fibers running through your rear windshield. Both end up serving the same purpose while operating differently.

How do you use a rear defroster in a car? The lines on the rear window are electrical. They heat up when the rear defroster is activated and begin removing the condensation immediately. The bonus for an electric defroster is that it begins working as soon as you turn the vehicle on and push the rear defroster button.

is rear defogger necessary?

All the best and safe motoring. The rear wiper is not necessary and is normally not available on sedans. Defogger is not something I miss as judicious use of the air conditioner can do away with this issue. Sad part is that manufacturers usually keep defoggers only in higher end variants and this needs to change.

Why is my rear defrost not working? Old wiring or a blown fuse can cause a disconnect. You can test this with the defroster test lamp or an automotive circuit tester. Make sure the rear defroster switch and the ignition key are turned on. Disconnect both wires from either side of the defroster grid and touch one end of your tester to each wire.

how do you fix a rear window defogger?

Brush on the conductive paint. As with the tab repair, let it dry for 24 hours before using the defogger. To repair the grid line on your defogger, simply attach the supplied stencil to the broken grid section and paint on the electrically conductive paint. Allow it to dry, then remove the stencil.

How much power does a rear window defroster use? Power Output of a Rear Defrost Window. Find the power output of a rear defrost window of a car through temperature measurements and calculations. Power output of rear defrost was found to be 104 watts.

Why is my rear defroster not working?

Reasons your rear defroster doesn't work. While front defroster problems are often caused by issues with the cooling or HVAC systems, a problem with your rear defroster can usually be traced to a faulty electrical component. This could be: The rear defroster fuse, switch, relay and wiring.

How much does it cost to repair rear window defroster? You will pay about $15-$30 for the parts to replace your rear window defroster on your car. The labor should be $30-$50, in most cases, as it is a quick and simple job to fix a connection issue, which is the most common problem with rear defrosters.

Why car back glass have lines?

Rear windshield defrosters, also known as the lines or wires in the glass, are thermal and integrated into the rear defroster system to ensure visibility while driving in all weather conditions. When power is applied, these conductors, or lines, heat up, thawing ice and evaporating condensation from the glass.

Where is the rear window defroster?

If you have an automatic air conditioning system, the rear window defogger button is located to the left of the dual button on the right side of the air conditioning control panel. You can only use the defoggers if the key is turned to on.

Can you solder rear window defroster?

The Frost Fighter Solder Kit is a solder paste used to re-solder separated main power tabs to automotive rear window defrosters. The high metals solder paste holds the defroster tab/clip in place during positioning and melts quickly when heat is applied. The kits no clean flux is safe for use on main power tabs.

What do you do when your defroster doesn't work?

If your coolant level is low, it could keep your heater core from getting enough coolant to produce heat. Solution: When the engine and radiator are cool, top up the coolant. Then warm up your vehicle and see if the defroster starts working better.