I have a 1999 Honda Accord EX-V6. The light that illuminates the portion of the AC control panel that displays the temp will periodically not come on with the rest of the lights. However, if you hit the dash (doesn't even have to be very hard), right above the clock, once or twice the bulb will light right up and stay lit. Does this sound more like a faulty bulb, loose bulb, or electircal short of some type?