or this one: http://www.treehugger.com/renewable-energy/amish-miracle-heater-is-anything-but.html
Either way, you have probably managed to disconnect a wire in the lamp circuit - not unlikely given the cheap chinese "guts" of the thing. Get someone who is technically competent to look at it.
XXX, February 2016
edit
I can answer this question...
Lights won't burn, replaced lights still won'r burn What is the problem an?