People actually suggested cutting out the offending half string and patching in another one.
Led light strand half out.
If the bulb does not come on after tightening it remove the bulb and check to see if the center wire is in the middle of the bulb if it is.
Incandescent christmas tree lights aka mini lights are wired in series so if your lights go partially out you have one of three issues.
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Tighten the bulb gently and checked to see if the rest of the strand lit up.
You may find that some leds stop working and this causes many people to dispose of the entire string.
I hade the same problem on a set of ge led lights.
I kept searching and further down the list was a fellow who described in detail how strings of led lights work technically.
A light bulb has come out of its socket or is half out of its socket and it has brought down the circuit.
If one of your light strings isn t working at all or if only half of the lights are working unplug the string and look for a small access door on one side of the male plug.
They do not have replaceable bulbs because they are all molded into the string.
I took out each light staring at the end and i found one with a wire broken off of the bulb.
With the lights plugged in use the voltage detector to check the live voltage wire between each light starting at the end that plugs into the wall outlet.
Thanks to everyone for the help.
If you find one open it and inspect the very small fuses inside the plug.
Half the string is out we have the first version of led s that costco sold about 7 8 years ago.
The fist step is to find the led that is no longer working.
How to fix half a string of christmas lights that are out.
Led stands for light emitting diode and refers to a lighting element that is purer and stronger than regular incandescent light.
Second half of strand was out.
Led lights are commonly found in long strings of lights used at christmas and other holidays for decoration.
The non working led will obviously be in the string half that is not working.
See led christmas lights and how to fix them by terry ritter.