Why Do My Lights Dim When the AC Turns On?
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 »