amp help

hey everyone, i just got done building a kick ass fiberglass box. I go to hook everything up, (amp kit had already been wired up just had to hook the amp in). So i hook the amp up and then hook the subs into the amp. Well turns out the amp will not turn on! I checked basically eveything one person can check. It says the the power wire is sending power to it but it just will not turn on. Any suggestions?