How to fix half a string of christmas lights that are out step 1.
Christmas tree lights half string out.
Plug a light string that works into the half out string.
A light bulb has come out of its socket or is half out of its socket and it has brought down the circuit.
Its usually s a split string with half the lights on series on one leg and half the lights in series on the other leg.
Or their lights suddenly half go out during installation.
Before doing this confirm that the second string is fully functional by plugging it into the outlet on its own.
One series leg has a bad bulb that took out the rest.
Check the entire strand of lights for a missing damaged or abnormal looking bulb according to the christmas.
Watch as lou manfredini ace s home expert shows you how to troubleshoot if your christmas lights are half out.
Using your fingernail or a pencil flick each light bulb carefully while the strand is still plugged in.
In other words plug one end of your half working string into an outlet then connect a fully functioning string to its other end.
For light strings that commonly have over 50 bulbs they are constructed in 2 or more continuous circuits.