well thats a new one on me,it sounds like the overheat protection relay.are you shure the pump is getting water if so
than take the front of the housing apart i think its 4 screws make
sure that there is nothing in the housing jamming up the pump. also make sure you dont damage the o ring in there when you put it back together.if that dosent work and hopefully the pump can be returned for a new one i hope i helped m.l.