Haier HRF-633ISB2R Service Manual page 3

SERVICE MANUAL
Model: HRF-663ISB2R/B/W
5. Control principle of electronic component ···························································· 21
5-1. Air Escaper
5-2. Control Principle of the Fan motor
5-3. Defrost control principle
5-4. Ice maker work principle
6. System flow principle ······························································································· 23
6-1. Refrigeration flow chart
6-2. Perspective of the Refrigeration System
6-3. Diagram of icemaker water way
7. Circuit diagram·········································································································· 25
7-1. Circuit diagram
7-2. Main Control PCB diagram
8. Trouble shooting······································································································· 26
8-1. Common problems and solutions
8-1-1. Food in the fridge storage compartment is frozen
8-1-2. The buzzer beeps to alarm
8-1-3. No defrosting
8-1-4. Neither displaying nor starting when powering on
8-1-5. Poor freezing effect accompanied by loud noise
8-1-6.Common problems with icemaker system
8-2. Examination and Solutions for Other Problems
8-3. Checking flow chart
Issue 200906
Rev. Ref0906S012V0
21
21
21
22
23
24
24
25
25
26
26
26
26
27
27
28
29
30
3