SERVICE MANUAL
Model: AFL631 & CFE633
3
Issue 200905
Rev. Ref0905S003V0
4-2-1. Sensor location description ········································································ 21
4-2-2. Graphic display of the sensor location ······················································· 22
4-3. Self test model···································································································· 22
5. Control principle of electronic component ···························································· 23
5-1. Air Escaper ········································································································· 23
5-2. Control Principle of the Fan motor ······································································ 23
5-3. Defrost control principle······················································································ 23
6. System flow principle ······························································································· 24
6-1. Refrigeration flow chart ····················································································· 24
6-2. Perspective of the Refrigeration System ·························································· 25
6-3. Air flow scenograph ·························································································· 26
7. Circuit diagram·········································································································· 27
7-1. Main Control PCB diagram ··············································································· 27
7-2. Main Control PCB connections ········································································· 28
8. Trouble shooting······································································································· 29
8-1. Common problems and solutions ····································································· 29
8-1-1. food in the fridge storage compartment is frozen ····································· 29
8-1-2. the buzzer beeps to alarm ········································································ 29
8-1-3. No defrosting ···························································································· 29
8-1-4. Neither displaying nor starting when powering on ··································· 30
8-1-5. Poor freezing effect accompanied by loud noise ····································· 30
8-2. Examination and Solutions for Other Problems ·············································· 31
8-3. Checking flow chart ·························································································· 33
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