When The Internal Lamp Of The Freezer Or Fridge Is Not Turned On - Samsung RF32FM SERIES Service Manual

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TROUBLESHOOTING

4-2-16. When the internal lamp of the freezer or fridge is not turned on

Note.
1. If the freezer door is opened, the door switch is open-circuited and 5V is input to the micom indicating that the door is open.
Then, if 5V is measured for 2 minutes or longer, the door open alarm "dingdong" sounds for 10 seconds every minute (1).
Therefore, if the door switch is out of order, the "dingdong" may sound every minute. Please make a note of this for customer service.
2. Turning the internal lamp on and off is controlled by the door switch.
✽ LED lamp operations
Fridge compartment internal lamp
Condition) The lamp is turned on when
the fridge door opens
IC76 - LED Lamp
Start
Do the door and home bar reed switches
work properly?
Yes
Is 13 V applied to the LED lamps when the door
or the home bar door is opened?
Yes
Replace the LED Lamp PBA
Freezer compartment internal lamp
Condition) The lamp is turned on when
the freezer door opens
IC77 - LED Lamp
76
※ Tips when checking the reed switch
The reed switch is turned on or off by the magnetic force of
the magnet attached to the door.
- When the reed switch is magnetised → 0Ω (when the door
is closed.)
- When the reed switch is not magnetised → ∞Ω (when the
door is open.)
If the magnetic force of the magnet on the door is weak or
the location of the reed switch is not correct, consider
replacing the part.
No
Replace the door switch if
necessary.
No
Replace the PBA if necessary.
Check the connections of the
connectors and wires.
Freezer: Measure the vol t age between CN78 pi n #1 and #2.
Fri d ge: Measure the vol t age between CN78 pi n #3 and #5.
Cool Sel e ct Room: Measure the vol t age between CN78 pi n
#4 and #5.
Cool Select Room internal lamp
Condition) The lamp is turned on when
the Cool Select Room door opens
IC75 - LED Lamp