Samsung RB215BSSB Service Manual - Page 60
When F-Room FANF-FANdoes not operate
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Diagnostics 13-4) When FAN does not operate Note "Check out the F-FAN with the Forced Operation selected" 1. F-Room FAN, R-Room FAN and COMP COOLING FAN remains OFF while COMP is off. (R-FAN can be on with the defrost function.) 2. When Comp is ON,R-FAN does not always remain ON (including Forced Operaation) and when R-Room temp reaches to set temp,R-FAN remains OFF. 3. When R-Room &F-Room are closed after being opened,each FAN starts up with a delay time (5sec ~1min) immediately.(Comp ON condition) 1) When F-Room FAN(F-FAN)does not operate Start Is it during Forced Operation? NO YES Does Fan operate with DOOR S/W presses? (Including Delay Time) NO Is DOOR S/W normal? YES Is the voltage of MICOM #42 5V (Close condition)? YES Freezer Door Switch input #42 Is insertion of CN71⑪PIN(YELLOW)of MAIN PCB normal? YES Is voltage of MICOM Pin #27 "HIGH"(5V)? YES Is voltage of IC70 #14 "LOW"(0.7V)? YES Is F-FAN RELAY(SSR71) normal? YES Start Forced Operation Normal R-FAN NO Change DOOR S/W NO Check soldering /Change PCB NO Re-insert ConnectorCN71 NO Check soldering /Change PCB NO Check IC70 /Change PCB NO Check wire assembled status/Change MAIN PCB ASS'Y 60 Check RELAY /Change PCB - Reference • Load terminal Measure method.