I have a GE Monogram side by side refrigerator that has a temperature control problem. I just paid a service man a LOT of money to fix the problem and it still doesn't work properly. The original problem began when the water dispenser quit working and things started freezing up in the fresh food side. The water tank was frozen solid and broke as a result. I called the repair service and they ordered a new main board and temp sensors. They were installed two days ago and still the set temperature has not been met. Any suggestions?