What could be causing this unit to eject CDs?

If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/

It could be caused by a few things :
1) The CD was not burned correctly or did not complete. Try using an original CD and see if it works 2) Some MP3s when downloaded from online sources have a digital protection which prevents it from playing once burned into a CD. 3) The brand of CDRs you are using are not good. Try another brand
If all the above do not fix it, I recommend that you send the unit for warranty or repair. The optical laser could have been damaged.

A malfunctioning stereo may least allow feature buttons to perform extractions of CDs. Depending on how the stereo was installed, the car would have to be powered on to attain stereo functionalities. Second, CDs have to be inserted with the readable media side facing the appropriate lenses to achieve results. A wrong insertion of the CD into stereo compartment may require forceful extraction. Observe the type of stereo to ascertain CD extraction also known as reset buttons. Usually a tiny area, the reset button allows inserting an object that forces the car stereo to eject stuck disks. Every mean to eject stereo disk have to be performed while the car is turned on to utilize the source of power. An unsuccessful attempt to dislodge CDs in stereo compartments would require auto electrician's consultation. An unsuccessful dislodge attempt usually requires acquiring a new stereo in replacement of the malfunction.

Have a look for a small hole in the front of the CD player - this is the emergency eject button. Find a paper clip, unwind it and then press the paper clip through the hole - the CD should then eject the first CD and you will then be able to eject the others.

firstly call customer service to see if here are updates on this unit, else, there are two possibilities, the mechanism-which you can easily identify if the cd is spinning at all. the second is that a new optic assembly is required.the first you can do,easily; the second you can research before putting money into it.

are they store bought CDs ? or are they copies? cause some players unless stated will not play MP3 or MP4 cds, or CDRs , CDRW Etc.... check if the Cds are burned copies, and then also check the music layout if copied, using the computer, see if they are mp3 files that should play if they are mp4 then the cd will act blank....hope this helps...

Try getting a cd cleaning tool come with a disk with tiny brushes on it and cleaning solution to clean the eye or if you are using burned cds try and see what format you are buring such as mp3s mp4s some cd player only will play a certain formats such as mp3s.

what make and model stereo. often just removing power to the stereo for about five minutes will reset it... then try it again.

Robert

It sounds like it is attempting to read the t.o.c. (table of contents) which tell the unit where everything is on the cd,and failing to do so, then ejecting, the first thing to do is try cleaning the lens and if there is no change then replace the laser pickup

if you have a FM MODULATOR installed too,some ones no transmiting in stereo mode, try changeit