After a sudden went on and off the electricity a few weeks ago, it caused the light on our Air conditioner to stop working. The light of the air conditioner tells us what functions of the A/C we are using either cold, colder or coldest. Now it is hard to determine if the function is still working with the light broken. My husband said the light of the A/C got burnt after the sudden on and off of the electricity. Anyway, the A/C still works OK and hopefully we can easily turn off the A/C if there is a brownout in our area but sometimes it is hard especially if it suddenly goes off then back on again..