SERVICE MANUALModel: HRF-660W/U2Issue 2010-09-30Rev. Ref1009S031V1ContentsTable of Contents ·········································································································· 11. General Information·································································································· 41-1. General guideline 41-2. Insurance test 41-3. How to read this Service Manual 52. Product Feature ········································································································ 62-1. Specifications 62-2. Main functions 72-3. External views 83. Disassembly and Installation ·············································································· 93-1. Door and handle 93-2. Lamp switch 93-3. Wind passage cover assembly and lamp in fridge chamber······························ 93-4. Wind passage cover assembly and lamp in freezer chamber 103-5. Control panel box 113-6. Display panel 114. Control and Display System ····················································································124-1. Display control board 124-2. Control function display 124-3. Fuzzy mode 124-4. Open-door warning 124-5. Malfunction display 124-6. Fridge ON / OFF function 134-7. Quick freezer function 134-8. Fridge lamp control 135. Control principal and related test functions·························································· 145-1. Air Damper 145-2. Control principle of fan motor 145-3. Defrost control 14