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What Causes Continuous Noise After an Electric Vehicle Gets Waterlogged?

1 Answers

VonLondyn

09/09/25 2:04am

Electric vehicles producing abnormal noises after being waterlogged is due to water ingress from rain, causing short circuits or malfunctions in the controller or wiring. Electric vehicles are particularly vulnerable to water; it's common to hear the horn, alarm, or internal water flow sounds after rain. Below are specific details about water ingress in electric vehicles: Electric Vehicle Circuit Drying Method: The simplest troubleshooting method is the circuit drying technique. The circuitry of an electric vehicle isn't complex, especially for components like alarms, which are mostly located in the front. Use a screwdriver to remove the shell, carefully inspect the circuits, wipe away any internal water accumulation, and use tools like a hairdryer to dry out the moisture inside. Then, place the electric vehicle in a well-ventilated, dry area for some time. Generally, this should resolve the issue. Precautions for Water Ingress in Electric Vehicles: Do not power on immediately; ensure it's completely dry before use. Electric vehicles have certain waterproof capabilities and can usually be used again after drying. If the noise persists after 24-48 hours of being powered off, inspect the control wiring of the electric vehicle. The main areas where the controller gets waterlogged are at the wire connectors; water accumulation in control plugs can lead to appliance malfunctions. Disconnect each plug to drain the water and dry them with a hairdryer. If drying doesn't solve the problem, take it to a repair shop for further inspection.

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