Tips for Repairing Your Rear Defroster

The complexity inherent in most car repairs is enough to scare off most people that might be willing to try. Repairs are often best left to the trained professionals. However, with a little know how and the right tools, you should be able to undertake some repairs. Here’s a quick list of tips if you are looking to repair your rear defroster.

Make the Right Diagnosis

Depending on the type of problem you’re experiencing on your rear window, you should be able to make an estimate of what’s causing the problem. For example, if only one-half of the window is defrosting, this may be indicative of a disrupted grid line. There could also be problems with the circuitry and buttons needed to activate the defrosters. Either way, it’s important that you have a basic idea before you undertake the process of repairs.

Locate Any Breaks

You should be able to detect most breaks just by a thorough visual examination. This should show you what and where needs to be repaired or replaced. In the event that you can’t detect a break, you may wish to use a voltage meter. The reading that you get once you have hooked up the voltage meter should typically be between 12 and 14 volts. You should take readings at numerous points along the line to determine where the potential break may be.

Apply Sealant

Once you have located the break, it’s time to patch it up. In order to do this, you will need some manner of sealant. There are a number of commercial products available, so you should have no trouble finding one that suits your automobile. You will want to apply the sealant to the break. You should be sure that you are getting all the potential breaks in the line; otherwise you will have to repeat this process later.

Do Your Repairs at Room Temperature

In order to ensure that your repair process is effective, it’s important to undertake the repair process in an area that’s close to room temperature. This is because the sealants and masks that you apply will likely require these temperatures. You do not want either the mask or the electrical sealant to be exposed to extreme temperatures. Such conditions will cause them to dry and harden in ways that aren’t beneficial to your goals.

Check for a Dislodged Power Tab

In the event that these tips haven’t solved your problem, it’s likely that the source is related to the main power tab. This is an incredibly important connector, as it joins your defroster unit with your vehicles electrical system. As you are dealing with an electrical issue, it may be better to leave this repair to a professional. However, if you wish to undertake it, you will need to reattach the tabs the have become dislodged. This is often best completed with the assistance of a kit.

While many car repairs can be daunting, and for good reason, you may be able to repair your rear defroster without the need for professional assistance. The most important step is determining the cause of the malfunctions. After you have done so, making a repair should be somewhere within your grasp. Just be mindful of the task at hand, and be sure to consult with a professional if you come up against things that you are uncomfortable with. You may need to do light electrical work, so give adequate consideration as to whether the job would be best left for a professional.