Samsung RF267AEBP Manuel D’Utilisation

TROUBLESHOOTING

4-2-13. If Water is not supplied

☞ Checking method of Valve resistance (Must

power off for checking)

Resistance can be changed by input voltage.
CN70#1 (Red)

↔ CN73#5 (White-black)

- resistance value ; 388(1.6k)Ohm

± 7%)

** 0

Ω: Short trouble / ∞Ω: Open trouble

Start

Is the confirming sound of

the valve operation heard

when dispenser switch

pushed?

Is the valve unit normal?

Is the voltage of PCB IC01

MICOM #15 changed 0V~5V

according to switch On/Off?

Does Main PCB IC73 #3

have about 5V input?

Does Main PCB IC73 #14

have about 0.7V output?

Is the contact point of main

PCB RELAY RY7A normal?

MAIN PCB normal
-- Need to check the other parts
① Check the wire between water valve ↔

MAIN PCB

② Ice water valve itself has trouble or bad

contact of connector

③ Check the connection hose

④ Check the operation between Panel PCB

and MAIN PCB for Communication.

Normal(Check Ice
water valve hose)

Replace Valve

Check soldering
short/Replace PCB

1) Check the dispensing

lever

2) Check switch unit/ wiring

connection

3) Replace PCB

typical PCB Ground CN1#3(Black)

☞ Checking method of voltage
Based on PCB typical Ground CN1#3(Black)
1) Check voltage of IC73# (same voltage as

IC01#64)

- Water valve operating (about 5V

±0.5V)

Based on PCB typical Ground CN1#3(Black)
2) IC73 #14 voltage
- Water valve operating (about 0.7V

±0.5V)

3) Check the voltage of Water Valve operating

(AC voltage)

=> For checking the Relay RY7A operating.
CN70#1(Red)

↔ CN73#5(White-black)

- ICE Water valve waiting (about AC 0V)

- ICE Water valve operating (about AC 110(230)V

± 20%)

AW-SEM Transform(RF267,2#3957D8

2009.8.20 4:55 PM

페이지80 in