please help me fix my heater?
 
                My Holmes model HFH101C space heater turns on as normal, runs for about 1-3 minutes, and then I hear a "click" and the heating element and fan turn off.  Power is still on, running light is lit.
If I turn it off and on right away after this, nothing happens, but if I wait a while (say 10  minutes) I can get another 1-3 minutes out of it.
Already opened it up, circuitry looks fine, and I've cleaned it of all dust etc.  Beyond that, I'm lost.
            
             freezin' my tuckus off
            
 November 2008