So I have this relay board, http://yourduino.com/sunshop2/index.php?l=product_detail&p=218, hooked up to my arduino mega. When I run the program without a load going through the relay everything works just as it should, but when I connect a load to the relay it runs fine for a few cycles and then things freeze when the relay actuates. I'm using the relay to actuate another coil that's on an air solenoid that operates on 120VAC and according to the multimeter it pulls about 1.12 amps.
Here's how it runs without anything connected to the relay: http://youtu.be/Ro7Ug6uITSk
When I connect the other coil to the relay the readouts display gibberish and the loop freezes