I own a GE Refrigerator (Model PSC23SGRC ss) and the ice/water dispensor display unit on the front stopped working.there is no water coming out nor ice...but the refrigerator does make ice it is just unable to dispense the ice or water. Also sometimes it make this wierd clicking sound for 10 mins like 3 to 4 times a day...when this is happening if i open the refrigerator the lights keeps dimming and dipping..what should i do?

SOURCE: GE SIDE X SIDE Dispenser problem

Sound like maybe a dispenser board short... you could try taking of the top hidge cap on the freezer side unplug the power to the board there for 30 minustes or so plug back in and see if it can reset to default and try that before u have to change board

SOURCE: GE Ice dispencer not working properly

for a very informative video on trouble shooting your refrigerator http://gei.portals.streamos.com/cc/channel.php?emcid=1416&empid=4533&packageid=0000

I had the problem with no water or ice dispenced and the lights dim when dispencer is used and the refrigerator compresser stops after using the dispencer and had to unplug and reset unit. GE DID NOT WARANTY IT. I bought a new motherboard for about $88 and fixed my problem. As the video shows there can be other problems that will cause some of these symptoms but not all at once. My frige was only 2 years old when this happened.

SOURCE: Ice and Water not dispensing. Light button not working

http://www.repairclinic.com/0100_1.asp
There's an ice- or water-dispensing problem The ice and water-dispensing system of your refrigerator is quite complex. Many components work together to provide the ice and water. Aside from a simple problem of a leaky water tube or a jammed ice chute, most other components are not user serviceable. We suggest that you contact a qualified appliance repair technician for such repairs.

SOURCE: GE PSC23SGRC SS refrigerator (Arctica) Profile

Main board is out. Replace. Located on rear of unit

SOURCE: Kitchenaid refrigerator in door water/ice dispensor

Look here.
http://www.fixya.com/support/t219770-kitchenaid_superba_kscs25fkss00