Samsung RB215BSSB Service Manual page 62

Diagnostics
3) When COMP COOLING FAN does not operate
Start
Is COMP operating?
YES
Is it COMP
COOLING FAN ON
condition?
YES
Comp
Fan
DELAY
Is MICOM Pin
#28 "HIGH"(5V)?
YES
Is IC3 #15
"LOW"(0.7V)?
YES
Is RELAY(K74)normal?
YES
Is contact of
Connector CN71� PIN (BLUE)
normal?
YES
Check wire assembled
status/Chang MAIN PCB ASS'Y
NO
Operate Forced Operation
NO
Stand by for FAN ON condition
Confirm FAN operating condition
Ambient Temp Range
Higher than 71.6℉(22℃)
Between 62.6℉(17℃)~69.8℉(21℃)
Between 53.6℉(12℃)~69.8℉(16℃)
Between 44.6℉(7℃)~51.8℉(11℃)
Lower than 42.8℉(6℃)
NO
Check soldering /Change PCB
NO
Check soldering /Change PCB
NO
Check Relay / Change PCB
NO
Check contact of Connector
- Reference
• Load terminal Measure method.
Load Operation Status
Comp Fan operates immediately upon COMP ON
Comp Fan operates in 3 min after COMP ON
Comp Fan operates in 6 min after COMP ON
Comp Fan operates in 9 min after COMP ON
Comp Fan gets off regardless of COMP
CN71 again
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