OH MY LORD,
I fear a terrible thing has just happened. You have just been plagued by the dark side of the force as I was last summer. That Graflex conversion was done by Ionsabers, the worst saber construction agency in the market. They have poor soldering and it's just a matter of time before the heatsink stops working and your saber shorts out. The EXACT same thing happened to me, as I bought one on Ebay and it turned out to be the biggest piece of crap I've ever bought.
I then contacted the best sabersmith in the galaxy, Yoda, from our forums. I bought an absolutely incredibly well built Graflex Luke Skywalker Luxeon lightsaber from him that exceeded my expectations.
I'm sorry to tell you this, but you had to know.