Washer fluid exists to help you keep your windshield clean while you’re driving. It’s both a creature comfort and a safety precaution, as it can help you retain visibility if debris or other matter hits your windshield. Some vehicles let you know when you have low washer fluid, but there’s no warning light for a malfunction with the fluid spraying system itself.
Common reasons for this to happen:
Blown fuse: A fuse provides overcurrent protection to your vehicle’s electrical units, including the windshield washer spray. It is responsible for limiting the excessive current, so that electrical units receive the proper dosage of power. When a fuse blows, the electrical current is cut off to the intended unit, and it won’t work.
Bad switch: A washer fluid switch is just like a household light switch. When you turn on your washer fluid, the switch sends the signal to the pump. These switches can malfunction and become inoperable, and then your washer fluid will not be sprayed.
Broken washer pump: The washer fluid is sent to your windshield via an electric pump. This pump takes the fluid from the washer bottle, sends it through the tubing and up to the nozzles, where it is sprayed onto the windshield.
Leaky tubes or bottle: The washer fluid is stored in the washer bottle. If the bottle is leaky, you’ll lose all of the washer fluid stored inside it. When the washer pump sends the fluid from the bottle to the nozzles, it forces it through tubes. If these tubes have leaks, the fluid can be lost in transit.
Clogged tubes or nozzles: If debris gets caught in the washer bottle, it can clog the tubes or nozzles. The tubes are large enough that they rarely get clogged, but it can still happen. However, the nozzles, which spray the washer fluid in small streams, can easily get clogged by sediment, leaves, or any other kind of debris.
Washer bottle is empty: If there’s no water in your washer fluid reservoir, your windshields will remain dry. Depending on how frequently you use your windshield washer fluid, your washer bottle may have to be replenished regularly.
Frozen fluid: Most washer fluid sold in colder climates is a special solution that won’t freeze even in harsh weather, but fluids sold in warmer climates will normally freeze if it gets cold enough. Never run anything but commercial washer fluid in your car as anything else can damage the system. If your fluid freezes, simply run the vehicle for a little while until the heat of the car melts it.
What to expect:
A top-rated mobile mechanic will come to your home or office to determine why the washer fluid won't spray onto the windshield, and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.
How it's done:
The mechanic will first check the pump and switch so see if it is functioning properly. Next he will check the hoses and nozzles to ensure there is no blockage preventing the fluid from making it out of the tank. Once the problem is identified, the repair is usually very straightforward.
How important is this service?
You’re unlikely to do any damage to your vehicle by driving it when the washer fluid isn’t spraying. However, if you get a dirty windshield you’ll be stuck with low visibility, which can present a safety issue. Book a mechanic to perform a thorough inspection and resolve the issue.