Samsung RM255BABB Training Manual page 73

DIAGNOSTIC
6-11) If Dispenser LED Lamp doesn't light
Caution
1. Dispenser LED Lamp is working with 12V DC.(=Dispenser LED Lamp has 12V DC power supply.) Anyone without approval or other than
the qualified engineer is prohibited to perform the repair or disassembling work due to the danger of high voltage DC current.
2. To replace LED Lamp, the dispenser cover should be disassembled. Anyone without approval or other than the qualified engineer is
prohibited to perform the repair or disassembling work due to the danger of AC voltage applied parts in the dispenser.
NO
Is the Main MICOM No. 13 low
(0V) when pressing water s/w?
Replace connector,
wire and switch.
Does the dispenser LED
lamp turn on when pressing
di s penser i c e or water s/w?
Is the Main MICOM No.
14 low(0V) when pressing ice s/w?
YES
Is the panel operation normal?
Does the connector have poor contact?
Dispenser Light Assembly itself failure
72 72
Start
YES
NO
NO
YES
Replace connector, wire and switch.
NO
YES
YES
- Check if there is failure on 3P
NO
- Replace connector and wire.
Check if ice or water s/w
themselves have a poor contact
when it works intermittently.
Failure of panel PCB itself
connector wire and terminal.