What to Do If the Cigarette Lighter Fuse Keeps Blowing?

[LaKatherine]

Here are the reasons and solutions for a blown cigarette lighter fuse: 1. Damaged or incompatible cigarette lighter: This usually causes a short circuit, not only blowing the lighter's fuse but also leaving burn marks around the lighter socket. In this case, simply replace the cigarette lighter. 2. Issues with the cigarette lighter wiring: Remove the lighter and check if the connected power supply shows signs of short-circuiting or burning. If so, repair or replace the wiring. 3. Fuse problems: Always use a fuse with the correct current rating. Avoid using a fuse that is too large, as it may damage other car components or blow the fuse. Similarly, do not use a fuse that is too small, as it may prevent the lighter from functioning properly.

[StKate]

The cigarette lighter fuse keeps blowing, which might be caused by circuit overload or a short circuit. As someone who frequently works on cars, I find this issue quite common. Avoid plugging in too many chargers or high-power devices like dash cams or heated cups, as they draw excessive current. First, check the fuse in the fuse box to see if it's rated too low or has aged, and try replacing it with a new one. Then, clean any dust or rust in the cigarette lighter socket using a small brush or compressed air. If the problem persists, it’s likely a wiring issue—like loose or frayed hidden wiring inside the car. In that case, have a professional technician test it with a multimeter to avoid causing more damage by tampering. For safety, don’t risk having the fuse blow suddenly while driving, which could be dangerous.

[MacBrady]

Frequent blown cigarette lighter fuses are indeed annoying. As an experienced driver, I've dealt with this several times. First, consider whether it's an issue with the car charger or accessories you're using, such as a cheap or damaged charger that causes a short circuit and blows the fuse immediately upon plugging in. Replace the fuse right away, but make sure it matches the original factory specifications—don't randomly adjust the amperage. Check the cigarette lighter socket for any burn marks or looseness, and gently wiggle it to see if the connection is stable. If the problem persists, it might be due to aging wiring or improper modifications, possibly from damage during previous installations of additional equipment. Never ignore this issue, as it affects driving safety. If the cigarette lighter loses power in an emergency, it could be dangerous. Visit a professional repair shop as soon as possible to save both money and hassle.

[Hubert]

I keep blowing the cigarette lighter fuse, often due to human error. Maybe you're plugging in too many devices at once, or the connectors aren't secure causing a short circuit. Start by replacing the fuse, but choose a high-quality new one. Open up the cigarette lighter area and clean any debris off the metal contacts. Try using a car charger from a different brand to rule out device malfunction. Avoid plugging in high-power appliances daily, like refrigerators or audio systems. If it keeps blowing repeatedly, just remove the cigarette lighter to inspect the interior. If the issue persists, abandon DIY and seek professional help to prevent further damage.