What is the flasher unit?
Flasher units are designed to control the flash rate of vehicle directional indicators; this is achieved by providing regular interruption of the electric current in the indicator circuit. There are 3 common styles of flasher units; electro-mechanical and electronic and thermal.
What is a heavy duty flasher?
Here’s how those old-fashioned flashers work. There is a set of switch points attached to a bimetal strip, all in series with the turn-signal bulbs and the battery. The heavy-duty flasher either uses a circuit that isolates the bimetal strip from the load, or just does the whole thing electronically.
What is a loud flasher?
2 Terminal 12 Volt “Loud” Electronic flasher, carded. These high lamp load flashers are 5 times louder than normal flashers. This makes them ideal for trailer towing, RV’s, trucks and automobiles. Five Times Louder Than Thermal Flashers.
What is the function of a flasher unit?
The electronic Universal Flasher Unit is used for turn signal and hazard warning light applications. The flasher unit can be used in various vehicle types. Versions with indicator LED (additional function indication) or start/stop feature are available.
How do you test a flasher?
How to Test a Flasher Relay
- Access the junction box where your flasher relay is located.
- Turn your car or truck’s ignition on.
- Connect the clip of the test probe to any good ground.
- Remove the relay and locate its control and power terminals.
- Turn your multimeter on and set it to the ohms setting.
How does an LED flasher relay work?
It’s that current flowing through a bimetal that completes the circuit and turns on the front and rear turn signals—that current also heats the bimetal strip, causing it to bend and open the circuit, which shuts off the lights. The strip cools rapidly and the cycle repeats, making the lights flash.
Why do turn signals click?
Traditionally, the clicking sound is made via heat. Drivers would switch on their blinker, and the electricity would heat up a bimetallic spring in the car, causing it to bend until it made contact with a small strip of metal. As the spring bent back and forth, it created a clicking sound.