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when you say 30% is it a certain strand, or is it just random lights?
it appears to be a strand ... not just lights
checked all the plugs
There are fuses in the plug to each strand if the whole strand is out then it's likely just the fuse
However I would personally just replace the strand
you cannot replace the strand. Lights are built into the tree. they do not come out
A strand of lights is pretty cheap. Even if it's a prelit you can leave those off and wrap a seperate strand on it. Won't look bad.
Not saying replace
\Leave off and wrap a seperate strand over that section
IF the fuse is blown, there was a reason
Short is most likely cause
how does it short out in the garage not being used?
you will be in the same boat, unless you think that strand may have gotten wet while plugged in there is no reason the fuse would blow
all but one strand was working last year
and now all but 1 still?
now at least 5 strands out of 13 or so... it is a 9ft tree
Right as they age the strands will fail
It is what they all do
strands fail or the fuses?
Pre lit trees are never wired in series (meaning if 1 bulb is out the whole strand goes dark) they wire them so if one goes out the rest work
So if a whole strand is out it's a power supply problem or a fuse
If you have working lights it's not a supply problem
Do you have a volt meter
no volt meter
you really need one to diagnose it, or you need to just replace the strands
have you seen this type of tree in person?
yep and I know how much better it looks with the pre lit lights, but I'm telling you if there is a short in the lights tracking it down is a nightmare for a skilled electronics tech
if your not good at it your gonna want a different option
This isn't gonna be a simple do this and bing it's done problem other than change the fuses
In each plug there should be a tiny one
there are 2 tiny fuses per plug.
cannot tell which plug has the bad fuse
you can usually see in a glass fuse if it's blown
just get out a magnifying glass
There is a tiny wire between each end
sort of hard when the plug is way inside the tree. Can't see much at all
plugs don't extend out
I know, just remove them all (KILL THE POWER FIRST)
and check them then put them all back in
so you are confident it is bad fuses... and not a whole bunch of lights that could be out
meaning... could more than 4 bad lights take out a strand?
The way the strand is wired, if 4 lights go out the rest of the strand will still work.
The chances of a whole strand going out is very slip
The fuse will kill the whole strand
ok... so a volt meter will do what?
So based on the number of strands and all you have going on you have a fuse problem
You check power to the strand, if you have it and it's not lighting you check resistance and compare to a working strand
Should be the same
You might find 1 dead strand is killing the rest and you might could bypass the 1 bad one and not worry about the rest
Or you might find out the fuses are bad on all 5
I wouldn't buy a voltmeter just for this if you had one I would use it but if not just swap the fuses, you can change them all for less than a meter
It is hard to tell which plug/fuse is connected to the bad strands. It takes more patience than I can bare.....
I thought this thing would last at least 4 years.
I know, the fuses do sometimes go bad in storage
My lights needed 4 fuses this year and all worked fine when I put them away
you have confirmed what I suspected. I have such bad luck with xmas lights I stopped using them externally on the house. They all go half out. crud...
Same on a tree just not outside, so not as bad
But honestly 4 years and only one out last year you got your money's worth
thanks for your time.
Either fix it or replace ... personally I would wrap it and get another year then replace after christmas
But that's just me
Your welcome. Lemme know if you need anything else
Have a good rest of the evening