Aaargh!! Sudden bizarre fretbuzz issues!

[Funky Dunky]

Just pulled my JB out of its case for a play and if I fret any note on the E string, anywhere on the neck, it buzzes badly. The open string is fine, the string tension is fine but fretting any note is just bzzzz central.

I last played the bass three days ago, it was perfect, made no adjustments, put it back in its case immediately and haven't touched it since.

Any ideas as to how/why this has happened and how to fix it? I reckon raising the saddle a touch might help but the action is still perfect and this problem didn't exist the other day. Help!

Edited November 26, 2016 by Funky Dunky

[Treb]

check neck relief. neck too straight perhaps.

[3below]

Where has the bass been? In car overnight, colder room, warmer room etc, anywhere different to usual? Climate changes can cause issues especially if your bass is adjusted to a super low action. I just use 3.5mm (or more) action at 12th fret, cures 99% of issues dead

Edited November 26, 2016 by 3below

[Funky Dunky]

[quote name='3below' timestamp='1480196419' post='3182502']
Where has the bass been? In car overnight, colder room, warmer room etc, anywhere different to usual? Climate changes can cause issues especially if your bass is adjusted to a super low action. I just use 3.5mm (or more) action at 12th fret, cures 99% of issues dead
[/quote]

It's been in a hard case in a living room with a comfortable temperature. The action is 3.5mm precisely.

[Shambo]

My guess would be the seasonal temperature change. Winter is here and even if it's in a case, in a house, it can still be affected.
If it were mine, I'd put a touch more relief in the neck as described above, and perhaps remember to turn the truss rod back the other way six months from now.

[Treb]

Since the neck is made of wood (I presume) it will always exhibit some movement. Changes in temperature and humidity will cause a neck to move somewhat. It is not uncommon to have to adjust the neck a bit with the changing of the seasons.

[LITTLEWING]

[quote name='3below' timestamp='1480196419' post='3182502']
Where has the bass been? In car overnight, colder room, warmer room etc, anywhere different to usual? Climate changes can cause issues especially if your bass is adjusted to a super low action. I just use 3.5mm (or more) action at 12th fret, cures 99% of issues dead
[/quote]

3.5mm ??? You could get an iPhone in there. Each to their own I guess.

[gary mac]

[quote name='LITTLEWING' timestamp='1480241285' post='3182670']
3.5mm ??? You could get an iPhone in there. Each to their own I guess.
[/quote]

[3below]

[quote name='LITTLEWING' timestamp='1480241285' post='3182670']
3.5mm ??? You could get an iPhone in there. Each to their own I guess.
[/quote]

Heavy right hand technique combined with TI flats. iPhone, complete mac airbook surely

[JTUK]

I think 2 set-ups per year are the norm but some basses need more attention certainly after string changes.
I think after 3 days, the bass wasn't put away properly..??

I am anal about packing away basses and pressure on the neck

[Burns-bass]

My vintage Fenders get a set up every 5 years!

[bassjim]

Is it possible that the pay off for a thin and fast bolt on neck is it will move more? Maybe....

If its nothing to do with the relief vrs/plus string height could it be a faulty string?.

[NancyJohnson]

I did a little guffaw at 3.5mm. Yikes. Granted I like my action low and a bit rattly, but a decent twelfth fret action here is 2mm or less.