Car Back Window Heater Not Working

However turn on the rear wiper and everything works as long as the wiper is not in the home position.

Car back window heater not working.

Issues can range from a blown fuse to a bad blower speed controller. But the defroster became standard issue for rear windows and the world was a better place. Then the system stopped working. Use an ice scraper to scrape the windows both inside and out.

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. Heater windows radio wipers all work in the acc key position. Turn your windshield wipers on when you get in the car. Wipe up interior moisture and water droplets with.

If this happens to be the case you can use a soldering gun to reattach them. Make sure the rear defroster switch and the ignition key are turned on. If the light comes on you have power. If it has replace it and test the heater again.

It was widely accepted in the car business that a car more than 5 years old would likely have an inoperative rear. There is a chance that you are missing terminal edges on your window heat grid. Jumping the car or replacing the battery can solve this problem. If the exterior frost layer is thin your windshield.

Disconnect both wires from either side of the defroster grid and touch one end of your tester to each wire. Clip the lamp. How to defrost a car window without a heater step 1. Remember the timer will turn off the current within 5 to 10 minutes so you ll need to keep track of the timer s time window or you ll be looking for current that s not supposed to be there.

If the blower motor is malfunctioning the defroster will not work. That is until something put a little nick or scratch in one of those delicate lines across the glass. As it goes back and forth across the window everything comes on and shuts off. Repairing heater element with conductive paint.

Examine the fuse to see if it has blown. Fixing a heated rear window fuse check. The battery could be the problem if you find that other aspects of the car are not working in addition to the defroster. One possible cause for the heater not to work is a break in an element.