If the lights dim when the AC turns on in your home, it may not be cause for alarm. Your home’s electrical wiring is a limited circuit, so when one appliance draws a lot of power, it’s taking it away from anything else that you have plugged in. It’s also possible, that the dimming lights are a sign of a problem.
Of everything in your home that uses electricity, your heating and cooling system use by far the most. The AC needs a lot of power when it first turns on. In some homes, especially older ones with dated electrical wiring, the lights dim slightly when the AC turns on because a lot of power is being drawn momentarily. In this case, the lights dimming briefly is normal and doesn’t signal a problem.
However, in other homes, the dimming lights do signal a problem. It could be within the AC system or … Read Full Post »