Samsung DC68-03144B-01 Manual
1
WASHING MACHINE
Technical Information
Code No. : DC68-03144B-01_EN
• Due to possibility of personal injury or property damage, always contact an authorized
technician for servicing or repair of this unit.
• Refer to Service Manual for detailed installation, operating, testing, troubleshooting, and
disassembly instructions.
All safety information must be followed as provided in Service Manual.
CAUTION
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
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ALIGNMENT AND ADJUSTMENTS
2
GENERAL ERROR FUNCTION
NO Error
Code
Diagnostic Code
Error Image Description Corrective Action
1 nd nd
The water level fails to drop below
the Reset Water Level within 15
minutes.
Go to “ Will Not Drain”
Troubleshooting Section.
2 LO LO Door fails to Unlock After 7
attempts.
Go to “ Will Not Unlock”
Troubleshooting Section.
3 nF nF
When the lling Continues for
more than 40 minutes or there is no
change of water level for 6 minutes.
Go to “ No Water Fill”
Troubleshooting Section.
4 FL FL Door fails to lock after 7 attempts. Go to “ Will Not Lock”
Troubleshooting Section.
5 LE LE
A water level lower than the Reset
water level (25.6Khz) is detected for
5 seconds during the Wash/Rinse
cycle.
Go to “No Water Fill”
Troubleshooting Section.
6 LE(1E) LE(1E)
Water Level Sensor Trouble. (When
the input signal from the water level
sensor is out of range, the unit will
send out beeping sounds and halts
the cycle.)
Go to “No Water Fill”
Troubleshooting Section
7 OE OE
A fault is detected in the water level
sensor. Data (frequency) shows
the water level is at or above the
overow water level. (When this
condition is detected, the machine
will automatically starts draining
water until the water level falls
below the overow water level)
First check to see that all of water
valves are not stuck. If water valves
are OK, check water level sensor.
8 dc dc
Unbalance or cabinet bump is
detected during nal spin, which
prevents the drum from spinning
over 140 rpm. (Never exceeds 150
RPM due to unbalanced load)
Go to “Wet Clothes”
Troubleshooting Section.
9 E2 E2
Jammed Key.(When key input
signals are coming out for more
than 30 seconds, it is regarded as
a jam.)
Check all of keys. If A key is sensed
to be pressed, all keys will do not
respond.
10 ds ds Door is detected as open while it is
trying to lock the door.
Go to “Quick Test Mode” and then
do Door Lock/Unlock Test
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
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ALIGNMENT AND ADJUSTMENTS
3
NO Error
Code
Diagnostic Code
Error Image Description Corrective Action
11 tE tE
Abnormal high/low temperature or
resistance (Thermal sensor or PBA
resistance).
Go to “ Board Input Test” and check
Water Temperature. Check loose
or pinched wires. Replace PCB or
thermistor.
12 3E 3E
MICOM is attempting to drive the motor
but is not getting any response signals
from the hall sensor. Visual check shows
motor is not running. (Locked, Defective
Hall Sensor or Overload)
Evaluate wire harness for loose or
unhooked connections. Go to “
Quick Test Mode” and test Motor.
13 Hr Hr This error code appears when the
heater is 96°C or above. Replace PCB
14 nF1 nF1
This error code appears when the
water temperature is 50°C or above
for 8 seconds or longer in the Wool
and Delicate course.
Please connect the hot/cold water
hose connection correctly.
15 suds suds
Suds is detected during the washing
session. (“SUdS” is not an error. If the
washer is in suds period, “SUdS” will
light up instead of remaining time.)
Guide a user to reduce amount of
detergent usage.
16 AE AE
Communication error between SUB
PBA and MAIN PBA
Check Main PBA, SUB PBA & Wire-
harness. Replace PCB
17 SF SF System Error Replace PCB
18 2E 2E Voltage for motor control bus is
over or under specied limit. Replace PCB
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
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ALIGNMENT AND ADJUSTMENTS
4
TEST MODE
Test Mode:
Each Test Mode for the Potomac is as follows in
the coming pages. The test modes indicated by
the red arrows are modes unable to get an access
once the washing cycle has started due to safety
reasons.
Quick Test Mode
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
Special Test Mode
Power Off State
Quick Test Mode
EEPROM Clear
Mode
Continuous Cycle
Mode
Service Mode
Demo Mode
Quick Spin Test Mode
Cycle Count Check Mode
S/W Version Check Mode
Fast Time Down Test Mode
Board Input Test Mode
Diagnostic Code
CheckMode
Power On State
(Normal User Mode)
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ALIGNMENT AND ADJUSTMENTS
5
Denition of Quick Test Mode:
- Check operation of all LED’s (Verify faulty LED).
- Check model and software version.
- Check dierent operating modes (e.g. water valve, motor, door, drain pump, etc.).
How to Enter:
- Plug in the unit.
- Press Soil Level Key + Signal Key and Power Key at the same Time.
Important. Once test mode is performed, all data including the diagnostic code saved in the
EEPROM will be erased.
Quick Test Mode:
1. All LED’s light up and it sends out Beep Sound when it
enters into the Quick Test Mode. (Including 7-Segment)
2. Displays software version for a sec and Clear EEprom. (Ex. If
Machine Version is L9 and S/W Version is 49, 7-Segment will
display L949)
3. When the version is displayed, turn the Jog-Dial so that
the version disappears. Press the following keys to test the
various components.
- Temp Key : Water Valve Test
- Spin Key : Door Lock/Unlock Test
- Soil Key : Water Heater Test
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
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ALIGNMENT AND ADJUSTMENTS
6
EEPROM Clear Check
Denition of EEPROM Clear Mode:
- EEPROM initialization.
- All course/option settings are to be reset to default values
after EEPROM initialization.
- When Service arises and it needs PCB replacement,
EEPROM should be reset.
How to Enter:
- The machine must be turned o.
-
Press Delay Start Key, Power Key at the same time.
Continuous Run Mode
Denition of Continuous Run Mode:
- Will continuously repeat the current cycle until the Continuous Run Mode is cancelled.
How to Enter:
- Press DelayStart + ExtraRinse together for 7 sec.
Continuous Run Mode:
1. Press
DelayStart + ExtraRinse 7 sec
during Power On State (Normal User Mode) .
2.
Once in Continuous Run Mode, The seven segments will no longer display “0000” and will alternate
between displaying the number of cycles of the completed course and the remaining time of the course.
3. The Continuous Run Mode will repeat the previous cycle until continuous run mode is cancelled.
4.
During Continuous Run Mode, press DelayStart + ExtraRinse 7 seconds to return to normal user
mode. The seven segments will no longer display the number of cycles and will display the
maintenance time only.
5. If power is lost in Continuous Run Mode (that is, when the power plug is disconnected or the
Power key is pressed turning the washing machine o), the mode is released when the washing
machine is turned on again.
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
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ALIGNMENT AND ADJUSTMENTS
7
Service Mode
Denition of Service Mode:
- Service Mode enables service technicians to verify the operation of the washing machine and
do troubleshooting.
- Service Mode can be entered during all washing cycle without interrupting the cycle except
some of test modes.
- Various tests can be done with Service Mode. So, troubleshooting can be done based on the
resulting diagnostic codes.
How to Enter:
- To enter the Service Mode, press the Signal + Extra Rinse Keys for 3 seconds or until the unit
sends out beeping sounds.
Service Mode:
1. The washer must be on to go into the Service Mode.
2. The motor speed will be displayed when started (It displays 0 when the motor does not spin).
3. The present state of the machine will not be changed.
(i.e., the current cycle in progress will not be interrupted and only the display will change)
4. To exit Service Mode, press Signal + Extra Rinse Keys for 3 second again, or Power Key.If no key is
operated during Service Mode for 5 minutes, the machine will return to normal user mode.
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
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ALIGNMENT AND ADJUSTMENTS
8
Quick Spin Test Mode
Denition of Quick Spin Test Mode:
- Quick Spin Test Mode is to do Spin Check. (High RPM)
How to Enter:
- During Service Mode, press the Pre Wash + Soil Level Keys for 3 seconds to enter Quick Spin Test
Mode.
- Cannot enter once the washing cycle has started.
Quick Spin Test Mode:
As it enters into the Quick Spin Test Mode, it starts spinning and reaches to its maximum RPM.
Once the Spin speed reaches the maximum RPM, the speed drops immediately.
To hold Quick Spin Test Mode (entering Hold Speed Mode), press the Start/Pause button. If the
Start/Pause button is pressed during Quick Spin Test Mode, it will stop accelerating and hold its
spinning speed for 10 minutes before going back to Quick Spin Test Mode.
Also, to cancel the hold and allow Quick Spin Test Mode to continue, press the Pre Wash + Soil
Level Keys together for 3 seconds.
If you hold down the Pre Wash + Soil Level Keys for three (3) seconds when the washing machine is
not in Hold Speed Mode, Quick Spin Mode is exited and Service Mode is restored.
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
Pre Wash + Soil Level
3 sec
While a cycle is not running
Pre Wash + Soil Level
While it is not in Hold Speed Mode
Pre Wash + Soil Level for 3 sec or after 10 minutes
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ALIGNMENT AND ADJUSTMENTS
9
Cycle Count Check Mode
Denition of Cycle Count Check Mode:
- Cycle Count Check Mode is to tally up the number of washings.
How to Enter:
- To enter the Cycle Count Check Mode, press the Signal Key during Service Mode.
Cycle Count Check Mode:
1. Activate the Service Mode in advance.
2. When the Signal key is pressed, the total number of washings will light up and a signal LED will
glow.
3. The maximum number of cycles will be 9999.
The counter will roll over to 0 and start counting again after 9999.
4. The counting will be carried out at the end of the normal cycle.
(For normal and Continuous Run cycles, the count is carried out at the end of the cycles.)
5. To exit the Cycle Count Check Mode, press the “Signal” key again.
S/W Version Check Mode
Denition of S/W Version Check Mode:
- S/W Version Check Mode is to bring up S/W Version information.
How to Enter:
- To enter the S/W Version Check Mode, press the Soil Level Key during Service Mode.
S/W Version Check Mode:
1. Activate the Service Mode in advance.
2. Press the Soil Level Key to bring up its software Version
EX) Generate AE49 at Version 49 (AE is Micom code, 49 is it’s software version)
3. To exit the S/W Version Check Mode, press the Soil Level S/W once again.
Then, it returns to the Service Mode with motor RPM illuminating.
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
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ALIGNMENT AND ADJUSTMENTS
10
Fast Time Down Test Mode
Denition of Fast Time Down Test Mode:
- Fast Time Down Test Mode is to forward the program to the next cycle stage.
How to Enter:
- To enter the Fast Time Down Test Mode, press the Temp key during Service Mode.
Fast Time Down Test Mode:
1. Activate the Service Mode in advance.
2. To forward the program to the next cycle stage, press the Temp key.
Each stage is located at key points of a complete cycle as follows:
- End of Each Fill (Beginning of Wash or Rinse Tumble Session)
Caution: Check if the current water level is higher than the Reset water level and then perform
the Fast time down test.
- Beginning of Drain Session
- Beginning of Spin Session (Here, it checks the water level. So, if it is over the reset level, it carries
out draining before the spinning.)
- Beginning of Fill Session
- Beginning of Bleach Fill
- Beginning of Fabric Softener Fill
- Every 3 minutes during Wash and Rinse Tumble Session
To avoid risk of electrical shock, personal injury or death; disconnect power to washer
before servicing, unless testing requires power.
WARNING
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