Car Back Window Heater Not Working

Issues can range from a blown fuse to a bad blower speed controller.

Car back window heater not working.

Use an ice scraper to scrape the windows both inside and out. Heater windows radio wipers all work in the acc key position. Disconnect both wires from either side of the defroster grid and touch one end of your tester to each wire. If the new fuse.

Then the system stopped working. But the defroster became standard issue for rear windows and the world was a better place. Repairing heater element with conductive paint. Turn your windshield wipers on when you get in the car.

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. If the light comes on you have power. Examine the fuse to see if it has blown. Make sure the rear defroster switch and the ignition key are turned on.

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. Start the car and it all shuts off. It was widely accepted in the car business that a car more than 5 years old would likely have an inoperative rear. How to defrost a car window without a heater step 1.

One possible cause for the heater not to work is a break in an element. If this happens to be the case you can use a soldering gun to reattach them. Trace the current path from the fuse to the switch to the timer and on back to the window. However turn on the rear wiper and everything works as long as the wiper is not in the home position.

If the blower motor is malfunctioning the defroster will not work. As it goes back and forth across the window everything comes on and shuts off. The battery could be the problem if you find that other aspects of the car are not working in addition to the defroster. Fixing a heated rear window fuse check.

If the exterior frost layer is thin your windshield. Jumping the car or replacing the battery can solve this problem. Clip the lamp. If it has replace it and test the heater again.