Flasher Relay

[indr]

This is me just messing around trying to learn things for a future wiring harness redoo.

I have a computer power supply unit hooked up and turned on. I connect a turn signal directly to it (+12V and GND), and it turns on.

I add the flasher relay (2 pronged) off my motorcycle to the circuit and it still turns on but doesn't flash.

Shouldn't adding the flasher relay to the circuit make it flash? Am I missing something here?

The prongs on the relay are labeled B and L (I'm assuming for battery and light).

I connected B to ground. L is connected to the blinker. The other wire from the blinker is connected to +12V. It turns on but doesn't flash.

[sailah]

If the blinkers are led and the flasher unit is not designed they wont flash because the led doesnt draw enough amp to trigger the flasher

[indr]

There's only one blinker connected. And it's standard incandescent.

Here's a diagram:

+12V --- Relay --- Blinker --- GND

Could it be because I don't have all four connected?

[buickid]

If its a regular flasher relay, it needs the correct load to blink as designed, one bulb probably isn't enough. Thats why you'll see people with blinkers blinking really fast or not at all - one of the bulbs is cut.

[Grinnin]

Originally Posted by buickid

If its a regular flasher relay, it needs the correct load to blink as designed, one bulb probably isn't enough. Thats why you'll see people with blinkers blinking really fast or not at all - one of the bulbs is cut.

What he said.

A "regular" flasher has a contact that bends when it heats up. When it turns on, it needs enough current flowing through it to heat it enough to cause it to bend. After it bends and turns off the lights, it cools and springs back to turn the lights on again. If the rest of the circuit (the signals themselves) don't use enough current to cause the flasher spring to heat up, then it remains on all the time.