If you have loads that turn on and off, like lights, then the voltage supplying your lights will change, and a flicker will occur. The timing of the flicker is consistent with the rhythm of the machine. Lights still flicker. Flickering Lights & Intermittent Electrical Power Loss Diagnose & fix flickering or dimming lights or lost electricity. I have the electrical pole next to my barn, not next to the house. Mainly when my AC kicks on. New construction, roughly one year old. The lights only flicker when 1 element is on. Flickering Lights May Require a New Light Switch I have a light fixture that can be turned on/off by 2 different switches. We checked for bad neutrals and grounds at the service. AC repair man comes out 3 times - AC is in perfect condition with new hard start kit. There is a 200amp service on the house and minor voltage drop (less than 4 amps)when this unit is running (It draws 110 amps). Lights in the home only flicker when a large appliance (such as the air conditioner) kicks on. This is how the electrical service comes to the house. The pole has a transformer, meter and a 200 amp service. Loose light bulbs mean the socket isn't making proper contact with the bulb, and that can cause intermittent flickering. Call different electrician - he goes through my house and can't find a problem so he suggests its a loose neutral on PoCo side. When the washing machine starts in the wash cycle all of the overhead lights in the house flicker. If we turn on more than 1 faucet or a bathtub and the second element kicks on, this problem goes away. First off DON’T PANIC !!! March: lights still flicker randomly. Was told the transformer serves 3 house (each roughly 3100 sqft) and has "more than enough voltage for the 3 houses" and there was no drop in voltage from the box to the meter on my house … This means that when the current reaches a destination, there is slightly less voltage for your various loads (lights, toaster, etc.). Any suggestions? First verify that you really have a problem, and it’s not a problem that the whole neighborhood is having. Even recessed lights can loosen, so check those connections first. The washing is plugged into a 20 amp dedicated circuit and the wiring connections are correct and tight. Sometimes when I flip either switch, the light does not come on, or it flickers and then turns … This is actually a common problem, often associated with large outdoor A/C units that can draw up to 100+ amps when first turned on. I had the contractor dig a trench (200 ft) from this pole to the house. There may be a simple solution for your problem. 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