Refrigerator-lamp Doesn’t work
PR | MAIN | GY | GY |
| GY |
4 |
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| PCB | 10 | 11 |
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| 9 |
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BL | 4 | GY | GY | 1 | GY |
11 | 12 |
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| 12 | ||
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CON3 | CON4 | Housing | Hinge |
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| Wiring diagram |
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Is the condition of the refrigerator door switch like as below?
No
AC
Part
Replace Door switch
DC
Part
Is the voltage between pin10 | No | Replace | |
and pin11 of CON4 like as | Main PCB | ||
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below? |
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| CON4 |
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Pin11 GY Pin10 GY |
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Voltage of Door switch |
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Door | Test Point | Result | |
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Closed | pin10 to pin11 | 5 V | |
Status | Tester |
Normal | 0 Ω |
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Push the Switch | Infinity |
Yes
Is the connection loose?
Yes | Reconnect |
CON6CON3
No
| Open | pin10 to pin11 | 0 V | ||
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| Yes |
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Is the voltage between pin4 | No | Replace | |||
and pin9 of CON3 like as | Main PCB | ||||
below? |
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CON3
Pin9 PR Pin4 BL
Voltage of Refrigerator lamp
Door | Test Point | Result |
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Closed | pin4 to pin9 | 0 ~ 2 V |
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Open | pin4 to pin9 | 115 V |
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Yes
Replace Lamp
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