Originally Posted by TerminatorX5

start with simple things first...

check the battery compartment for moisture or outright water damage.

then, there could be chaffed wire, but less likely, given your symptoms...

also, a weak battery - if the battery is old, or has been discharged more than once, you might want to start with a fresh battery... Also, while seems to be obvious, check battery terminals for loose connections...

let us know about the results, and then we take it from there...

Good luck