What to Do When a Car Horn Gets Wet?
2 Answers
The best way is to open it and let it air dry, allowing the water inside to evaporate on its own, otherwise prolonged exposure can cause a short circuit in the wiring. Alternatively, promptly remove the horn and dry it, preferably using a dryer to thoroughly dry the horn. When washing the car, always remember to prevent high-pressure water jets from soaking the car horn. Here are some methods to prevent car horns from getting wet: 1. Method one: Try to install the horn in a higher position and ensure it is angled downward at sixty degrees. This position is widely recognized by car owners as the best because it not only effectively prevents water from entering the horn but also allows any water that does get in to drain out naturally without accumulating inside the horn. 2. Method two: Find a board with good waterproofing properties; if unavailable, a regular plastic board will suffice. Secure the board in the gap between the bumper and the front left wheel in front of the horn to effectively block water splashed up by the wheels. 3. Method three: The simplest, most practical, and most widely used method involves simply covering both the upper and lower car horns with a pair of ordinary stockings to effectively prevent water from entering the horns.
If I encounter water getting into the car horn, I usually first find a safe place to park, turn off the engine, and disconnect the battery terminals to prevent short-circuit accidents. Then, I open the hood to locate the horn, typically near the radiator. I gently dry the horn casing using water or the cold air setting of a hair dryer, or simply remove it and let it air dry in a ventilated area for a day or two. Avoid using hot air as it may damage plastic components. After drying, reinstall the horn and test it. If the sound returns to normal, it's good to go; if it remains silent or sounds hoarse, the internal circuit might be burnt, and you may need to consider buying a new horn to replace it yourself or visit a repair shop. This issue shouldn’t be delayed, as prolonged water exposure can cause corrosion and affect other wiring. When washing the car, avoid blasting high-pressure water directly at the horn openings, and try to steer clear of deep water when driving in the rain. These small habits can prevent problems before they occur.
