My gas boiler won't turn on. I turned off the breaker for the furnace 4 days ago and forgot to turn it back on?

So I researched and decided to change the thermal coulpe. This didn't work, I tried 2 new thermal couples both with the breaker on. I also tried removing the thermostat and "jumped" the red/ white connection, didn't work either. The pilot has remained lit through all of this(except when changing the therm. coup.) There is a small elec. box on the furnace with a black plate that is connected to the thermostat & ,what i think is the control for the temperature of the water. All 3 'leads' on this box have power except for the far left which is connected to the red wire from the thermostat. I am not sure if that means anything. Another possibility is, I didn't look to see the position of the original thermal couple. So I am not sure if I am lining it up with the pilot correctly. Any ideas appericated.