Anet A6 Extruder Temperature Problem?

I have been having a problem with my Anet A6 after installing a mosfet on the board. My printer seems like it doesn't receive the gcode info to heat up the extruder. The heated bed works fine and so does aol mail login the extruder thermistor. I have been able to preheat the PLA and set the temperature of the extruder. However, it doesn't heat up to the desired temperature during actual prints. For example, the LCD would display: 23'/0' for the extruder and 23'/50' for the heated bed. My wiring seems to be correct and with solid connections. I have run some tests to see if the board is fried, but it looks good. What should I do? Was the mosfet wiring wrong?