# SSR staying on (not reacting anymore)

I am using this SSR connected to an Arudino.

I am running a very simple code similar to this one: (like the Blink example)

loop(){
digitalWrite(1, HIGH);
delay(1000);
digitalWrite(1, LOW);
delay(1000);
}


When I start with the Arduino pin LOW the SSR is off. But after setting the Arduino pin to high my problem is: the SSR stays always on. Even if I set the Arduino pin to LOW the SSR won't stop letting the current pass through. What do I have to do set the SSR to off again? (Or do you even think the SSR is broken?)

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Can you show us the schematic of how you wired up the SSR? – stevenvh Aug 18 '12 at 16:57
i can't do any better at the moment (see image link in post). does this immage suffice? :) – ndrizza Aug 18 '12 at 17:27
What are the resistor values? – stevenvh Aug 18 '12 at 17:30
left: 100 ohm, right: 270 ohm – ndrizza Aug 18 '12 at 17:35
The 270 $\Omega$ gives you 14 mA, which is a good value. The 100 $\Omega$ gives the LED 30 mA, which might have been too low to keep the triac on, but on your SSR it apparently still works at 30 mA. – stevenvh Aug 18 '12 at 17:39