I found this user review that may coincide with your experience...
"When receiving the unit the fan was very loud and the cd player did not work. However, after calling phillips that same day they mailed a new "referbished" unit out with prepaid postage and pickup service for the old unit. The new one works great and sounds great in a smaller room. Sound is very crisp and clear."
Negative Opinion after several replacements:
"worst product ever by adiklaus - November 14, 2009
The third replacement unit is still not working, Philips send two faulty replacement units. All displayed signs of previous use and did not work. CD player was not working, the same in second unit, the third unit had no working display .
For the short time it worked the unit was adequate in sound quality but unfortunately this was short lived.
I certainly dislike a product that does not work and is backed up by second hand unit which also do not work. Beware of this Unit"