Follow up:

After nine months of dispenser working, it has stopped again!
Now experiencing leak on floor underneath freezer side door. Have yet to determine the cause. After a few days, water on floor was no longer present. Checked drain tube in rear of refrigerator for clogs however, none present. Ran water through tube to confirm. Re installed.
Now, water dispenser is no longer working again (ice maker still functional)! Don't believe water pressure in home to be the issue. Replaced water filter, no change.
Would anyone know if it's possible that the motherboard located in rear of fridge, freezer side (part # WR55X10942), could cause dispenser to work intermittent? Or perhaps the dispenser switch (GE part # WR23X10783) may be defective. Any addditional information would be appreciated.
Thank you.