My controller melted the throttle/lcd control panel wires and pas wire. It looks like it was melting the motor wires that connect to the motor/battery. It's the green/yellow/blue wires and they all have holes on them from overheating. I'm going to put a 25 amp inline fuse on the wires that connect to the battery and see if that can fix the issue. I also have been reading that there are cooling systems for the controller? Don't know anything about how those work. If anyone knows how to keep your controller from frying, than please help me figure out how to cool it off. It rains everyday where I live and it's wrapped in a waterproof bag and I put trash bags over where the wires go into the bag to extra careful keep the water out. I'm sure since it gets no air it makes it worse. It's a 18 mosfet controller for 48v1500 amp bike motor.