Acer monitor color is blueish tinge since starting up this morning. How do I get normal color back?

Yep,

When the capacitors start to go out it causes the power supply to not provide the correct voltages. You monitor has the back light power but the 5v power going to the video driver board is not working correctly. Here is a link to a repair guide that will show you how to open the unit, remove the power supply board and what capacitors need to be replaced.

http://www.ccl-la.com/blog/index.php/repairing-the-acer-al2016w-monitor/

I hope this helps, if so please rate my solution.

BuddyMc

CRT monitors have three color "guns" in them - Red, Blue, & Green. If one of them is starting to go south you will have a tinge as you describe. To make sure it's the monitor, try connecting a different monitor. If the monitor is the problem, it's not worth fixing. Replace it.
If, after changing the monitor you still have a color tinge, you have a problem with your video device in your PC and you need to have it checked out by a PC Technician.
If you have any additional questions contact me by clicking on the "Add a comment" link located under your problem description on FixYa. Also, if you believe that this information was helpful to you, please return to the FixYa website and rate my response to your question.
Best regards,
Yavacotech

Hello Sales, hi, try to reconnect the VGA cable from the PC, and wiggle it a little and see if the green tinge thing disappears on screen, if it does there are loose contacts, you can also try to replace you VGA cable, see if it solve the color problem.

try reseating or/replacing the cable. If the connection isn't good then you can lose one of the three basic color channels resulting is a tinted screen color

Hi,

This is because of the degauss error. If its a CRT monitor, please try to degauss it yourself, if you have the option in the monitor, else, take it to the nearest service station and ask them to degauss it.

This would help..

Regards,
HP

now that is one wild post.?
NO PC told
no OS told
no what app shows wrong colors
what does wrong mean? we can not see it.
what are you doing, with the PC, and application of some kind or just windows screens wrong.
is this a artist point of view , for Publishing in perfect tints?
does VA2026w fail on 2nd PC?
old monitors (trashy) have CCFL back lamps
and go yellow tinged for white, and yellow added to other colors are trash. too.
let me C 14 carbon date this MON.
2007 made and is CCFL lamps and all are bad now
or yellow dog tinged or changes hot../cold or random.
time to get a real monitor called LED 2010 or newer.
2007 are junk,
the CCFL will go dead next. all do.

here is what mine looks like, then,.... long ago.
just like this.

https://www.pcdied.com/monitors_and_screens/yellow-ccfl.JPG

pure trash monitors, all brands that year or older
2010 is the cusp year CCFL > LED
starting with big screens to small.
so 2011 is best year up;.
2010 some are some not.
2007 is junk,

If the Blueish problem appears try play around with the VGA cord and see if the Colors comes back, if not, try hiting the monitor to see if the lines and color problem comes bcak to normal. If not your monitor's circuit board needs some dry solder, it could be the cold solder problem. Cheers.

Try to put speaker distance from monitor.
Try to remove the display card and fixed it again.
Then boot up your and see .

From your monitor menu, check your monitor color temperature. Is it 9500k or 6500k?

Try setting it to 6500K

mostly is because the video card is defective, try to replace with another video card, and see whether the new one works fine.