I've been working on a little project that takes a 5V DC signal from a microcontroller and uses a npn BJT driver to turn over an SRS relay (opto-isolated triac type). On the other side of the relay is connected a snubber circuit (R= 10 ohm, C=.22uf), and the 115V AC motor is connected in series. I've been using some hard coded times to turn the motor over for a specified amount of time then it shuts off. It has been working for nearly a month, but problem is now the motor won't spin. I automatically assumed my transistor or srs relay was burnt up, I swapped those for a new ones with no luck. I thought might have been the snubber circuit, so I replaced the resistor and cap as well. I checked the output signal from the microcontroller (I'm still getting 5V). When I connect the motor directly to the wall socket, it works great. I'm at my wits end trying to figure out why this thing doesn't work anymore. Could anyone give me some ideas?
Schematic Below
http://www.imagebam.com/image/63eb3678121376
Schematic Below
http://www.imagebam.com/image/63eb3678121376