My Amana side-by-side fridge (model SZD26VW)

My Amana side-by-side fridge (model SZD26VW) stopped getting cold about 10 days ago, I bought it new 9 years ago. After checking my owners manual I decided it needed a good cleaning, so i took all food out, pull it out from wall, cleaned the condenser coils (lots of dirt) cleaned the condenser fan (lots of dirt)unplugged and open both doors for 24 hours,, started it back up and it worked great for 12 hours-got cold- made ice- cold water from dispenser... then it stopped (no cold air) no water coming out of dispenser,, turned off for 4 hours and then started it back up,,, worked great for about 12 hours and then stopped again, HELP any ideas?