239. Operation Function9-1) Digital Panel ······································ 249-2) Temperature Control Function ···························· 249-3) Power Freeze and Power Cool Functions ····················· 259-4) Child Lock Function ·································· 259-5) Ice & Water Dispenser Function ·························· 269-6) C-Fan Motor Delay Function of the Machine Compartment ···········269-7) CoolSelect ZoneTM Function(RS2556, RS2578) ·················· 269-8) Water Filter Indicator Function ···························· 279-9) Ice-Maker Function ·································· 279-10) Defrost Function ··································· 299-11) Forced Operation Function (Pull-down/R-Defrost/R,F-Defrost/Cancellation) · 309-12) Sound Function ··································· 319-13) Exhibition Function ································· 319-14) Self-Diagnostics Function······························ 319-15) Load Operation Check Function ·························· 339-16) Restoration Function for Power Outage······················ 339-17) Set Point Shift Function ······························· 339-18) Table of Set Point Shift Function ·························· 34