AC control lights?

[rmneder]

My air conditioning control panel lights haven't worked since I don't know when. I just got them working. I put on new sockets and bulbs and now they work. There are two lights on the air conditioning control panel. One comes off the main under dash harness and the other from the air conditioning harness. The light from the main harness works in conjunction with the cluster lights, but the one from the air conditioning harness comes on with the ignition. Is that normal or do I have a problem. Seems strange to me. Thanks for any advice.