I'm in the process of replacing my HVAC control lights and one of the bulbs has no power going to it.
I hooked up temporary power to the circuit board and found the positive and negative on three out of the four bulbs but the last one has both negatives going to it. I've tried testing it different ways using different positive locations and every time I touch the red to a power somewhere else and the negative to either one of the terminals at that bulb it always grounds out and doesn't show a positive flow anywhere.
I'm not the original owner but it looks like no one's ever been in here and done any work before, how could this one light have never been working from the factory and do you guys suggest me jumping it from another terminal to make it work?
Thanks
I hooked up temporary power to the circuit board and found the positive and negative on three out of the four bulbs but the last one has both negatives going to it. I've tried testing it different ways using different positive locations and every time I touch the red to a power somewhere else and the negative to either one of the terminals at that bulb it always grounds out and doesn't show a positive flow anywhere.
I'm not the original owner but it looks like no one's ever been in here and done any work before, how could this one light have never been working from the factory and do you guys suggest me jumping it from another terminal to make it work?
Thanks