Sunday, November 24, 2013
My Defroster Wont Stay On
A defroster that wont stay on when activated may lead to an accident due to poor road visibility. This is because it is supposed to prevent fog, frost or ice buildup in your cars window. Determining the cause of a malfunctioning defroster requires initial troubleshooting steps. In most cases, the problem requires a fairly easy fix that you can perform on your own. However, a more serious case is still best attended by a professional.
Instructions
- 1
Inspect the defrosters fuse to determine if it is causing the problem. As the location of the defroster depends on the cars manufacturer, make and model, consult your owners manual to confirm where you can find the fuse. Once located, use a volt meter to check if the fuse is working or not.
2Examine the wiring from the fuse box to also ensure that there is proper connection. Make sure that the fuse is tight and secure as a loose one may also be causing the problem. Use an electrical tape in case there are parts of the wiring needing coverage.
If the fuse is causing the problem, simply follow the more specific steps indicated in the owners manual for the replacement. Ideally, this requires pulling out the old one with the fuse puller in your fuse box, then simply attaching a new fuse, which is easily available in auto stores.
After checking the fuse and its components and there seems to be no problem, proceed to the next steps for further troubleshooting.
3Check the wire that goes directly to the defroster as the tab typically connected to it can get detached in time. Make any fix using a window defroster tab adhesive, if necessary. Such adhesive, usually available in auto shops and super centers, comes in a kit with instructions on how to use it.
4Examine the defroster grid lines found on the window. Make sure the glass heating the grid feed and the ground wires are properly connected to the glass. To make a do-it-yourself fix for any minor damage, use a window defogger repair kit and follow the instructions indicated in the package.
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