Freezer-lamp Doesn’t work
BO
BL
7 | Main PCB | 5 | |
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4 | 6 | ||
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CON3 CON6
SB |
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SB |
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| Housing |
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Wiring diagram
Is the condition of | No | Replace | |
the freezer door switch | Door switch | ||
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like as below? |
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| DC Part | AC Part |
Status | Tester |
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Normal | 0 Ω |
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Push the Switch | Infinity |
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Yes
Is the connection loose?
Yes | Reconnect |
CON6CON3
No
Is the voltage between pin 11 | No | Replace | |
and 12 of CON6 like as | Main PCB | ||
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below? |
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Pin5 SB Pin6 SB
Voltage of Door switch
| Door |
| Test Point |
| Result |
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| Closed |
| pin5 to pin6 |
| 5 V |
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| Open |
| pin5 to pin6 |
| 0 V |
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| Yes |
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Is the voltage between pin 4 | No | Replace | |||||
and pin7 of CON3 like as | Main PCB | ||||||
below? |
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| CON3 |
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Pin7 BO | Pin4 BL |
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Voltage of Freezer lamp | |||||
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Door |
| Test Point | Result | ||
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Closed |
| pin4 to pin7 | 0 ~ 2 V | ||
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Open |
| pin4 to pin7 | 115 V | ||
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Yes
Replace Lamp
- 36 -
