Reptile Light Timer

Eh, I know this probably isn't the best place, but I was hoping other peeps with reptiles can point me in the right direction. The timer on our Zilla "Halogen/Fluorescent Combo Fixture" (basically a hood with multiple lights) broke. I took apart the mechanism, but all the gears scared me so I haven't tried fixing it. Was hoping another snake/herp owner has had this problem and has suggestions? Or maybe someone can point me to a "fix-it" sheet? I want to sell it soon, and it'll be worth a lot more if the timer actually works.

Product is:

http://www.zilla-rules.com/products/combo-fixtures.htm

Thanks in advance!
The timer still switches the lights on and off, but it doesn't turn on its own anymore. You have to manually turn it or flip he switches. Quite annoying, really...
Called them already. Basically told me to send it in and they'd fix it (for the cost of a new one)