Samsung
RM255BABB, RM255BASB
manual
Connector Arrangement Main Board
Specification
Wiring Diagram
Alarm Function
Error
Symbols
Replace connector and wire
Self-Diagnostics Function
Disassembly and Reassembly
Option Setting Function
Temperature Control Operation
Page 75
PCB DIAGRAM
10-2)
CONNECTOR ARRANGEMENT (Main Board)
74
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Contents
RM255BARB RM255BASB RM255BABB
Authorized Training Center Campuses
Important Safety Notice
Contents
Precautionssafety Warnings
Symbols
Forbidden
Product Specifications
Manual
This operation instruction covers various models
Model Specification
RM25
After packing 386lbs
Sensor
Electric Parts Specification
Running
Specifications Model Dispenser Home Bar
Electric Components
Items
Optional Material Specifications
Photograph
Part Code
Operating Instructions & Installation
Digital Panel
Temperature Control Operation
By in inside function irrespective of current setting
Power Freeze and Power cool Operation
Power Freeze Operation
Power cool Operation
Cube / Crushed / ICE OFF Selection Function
At Initial Power On
Lock Function
Able to operate on front panel
Load Operation Condition
Machine Room F-Fan Motor Delay Function
Water Dispenser Function
Light Operation
Maximum torsion point
Initial Operation
Reverse rotation CCW Forward rotation CW Ice extraction
Horizontal position Interval about 880ms
Water Supply Time
Water Supply Function
Ice-Making Function
Ice Extraction Function
Bold numerals indicate relevant ice tray steps
Horizontality operation
53.6 62.6
Defrosting Function
Defrosting period is fixed to 8 hours
Arctic Zone
Fresh Select Zone Function
Arctic Select Zone Function
Function
Operation
Operation start
Function Operation Specification
Temp .8 ~ 44.6 of the Fridge compartment
Test KEY
For the R compartment
Forced Defrosting Function
Display Function at Panel
Alarm Function
Communication Error Display Function
When water supply is finished, in the ice maker test mode
Self-Diagnostics Function
Operating Instructions & Installation
BAD Item Trouble Status
Self-Diagnostics Checklist
CR Sensor
Error
Defrosting
Sensor of R
Trouble
CF-FAN Error
CR-FAN Error
On Error
Load Mode Checklist Load Item Load Status
Load Condition Display Function
Relevant displays about load status is as follows
Option Setting Function
Changing to Optional Mode
Value Item
KEY Function
Change for freezer compartment
Temperature Change Table for the Freezer Compartment
KEY
Temperature Change Table for the Refrigerator Compartment
Flow sensor
CR Room Temperature Shift Function
Case of basic model, the following items cannot be set
Maker For Ice Maker
Disassembly and Reassembly
Door Assy
Removing the Front Leg Cover
Removing the Freezer Door
Removing the Refrigerator Door
Open the Fresh Select Zone Door
Remove two screws holding it to
Liner on the right side of the rail To separate it
Reattaching the Freezer Door
Reattaching the Refrigerator Door
Levelling
Zone
Open the Arctic Select Zone Door
Do not overtighten the compression Note nut
Water line must be connected to drinkable water only
Close the filter cartridge cover
Door Gasket
Door Sub Parts
Control Panel
Door Handle
Plastic Drawers in the Refrigerator
Refrigerator Door Light Switch
Refrigerator Light
Tempered Glass Shelf
Plastic Drawer in Freezer
Freezer Door Light Switch
Freezer Compartments
Door Bin in Freezer
Ice Dispenser Ice Maker
Tighten the screws 2 of the ice maker support
Freezer Light
Upper Ductwork
Auger Motor Case
Screws Pull the upper part of the evaporator cover slightly
Partition in the Freezer
Evaporator in Freezer
Evaporator Fan Motor
Water Tank
Freezer Thermistor
Thermistor cover Screw
Ice-Maker Thermistor
Evaporator Fan Motor in Refrigerator
Evaporator cover in the Refrigerator
Fresh /Arctic Select ZoneTM Thermistor
Evaporator in Fridge
Refrigerator Thermistor
Ductwork Thermistor Thermistor cover
Upper Ductwork
Water Solenoids
Machine Compartment Electric Box
PCB-MAIN Assy
Sub-condenser
Removing the Arctic Select Zone Accessories
Check at the Smps PBA Check Main PCB connection
If power is not on
Start
Normal
Check connector for Contact failure
Exchange and repair COMP. Assembly
If the compressor doesn’t work normally
Perform forced defrosting for F R room one at a time
Reference
Check the soldering on the main PCB for Shorts & breaks
If the ambient temperature sensor has trouble
How To Check Temperature Sensing in the manual
If there is a trouble with self-diagnosissensor failure
Gasket, food etc
Alarm Sounds continuouslyrelated to the buzzer
If Ding-Dong sounds continuously Start
If Beep sounds continuously Start
Replace buzzer or panel PCB
If the buzzer doesn’t sound
Main PCB is normal, buzzer is Normal
Buzzer is broken - replace it
Where the Panel PCB key isn’t selected
If the panel PCB is not working normally
It is a care
Condition
If fan motor doesn’t working normaly
Door S/W
Door Open 0V DC
Door Open DC
These signals will be inputted into Micom
If Ice Cubed or/and Ice Crushed dont work normally
Replace Inside lamp Replace or troubleshoot Door S/W
If Indoor Lamp of Freezer/Refrigerator doesn’t light
If Water Drawer doesnt work normally Preliminary Check
Failure of panel PCB itself
Replace connector Wire and switch
Replace connector and wire
If Dispenser LED Lamp doesnt light
Wiring Diagram
Connector Arrangement Main Board
Circuitschematic Diagram
Conn Ector Arrangement SMP S Board
A voltage proportional to
Power BUS
64.7
98.9
93.7 40.0 88.9 38.2 84.2 36.4 79.8 34.6 75.7 32.8 71.8
68.2
IC75 Input IC75 Output FAN
#18 GND0.8V
107
Remarks
Motor Drive Circuit Descriptions
Principle of Operation
Comparison in HIGH/LOW Speed
XAA
Reference Information
13-2 Q & a Problem Possible Causes What To Do
Small or hollow cubes
Problem Possible Causes What To Do
Additional Information
Compressor Sub-condenser Hot Pipe Dryer Step valve
Suction Pipe
Freezer Refrigerator
Related pages
All Pins page
What does the Hotpoint oven end of cycle tone mean?
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