So my setup is an Uno, relay and 12v actuator. The Uno and relay are powered separately (15v and 12v respectively).
My goal is to extend and retract the actuator 500 times and then stop.
My problem is that somewhere between 30 and 100 cycles the actuator will not retract. It then continues with the program and extends once more and continues going back and forth. This double extension is very problematic for my setup. I do not believe it is my coding because the Uno still sends a signal to power the relay in the retraction direction because the the LED lights up on the relay in retraction direction. Could there be a problem internally with the relay?