1. Digital Appliances Division
SAMSUNG Clothes Dryer
MARS 2-PJT Dryer
TRAINING MANUAL
MAR. 2007
Digital Appliances Division

2. Instruction of Function Test Mode & Error Check Reference Information
CONTENTS
Product Introduction
Changed Part List
Instruction of Function
Test Mode & Error Check
Reference Information
Disassembly & Reassembly

3. 1.Product Introduction 1-1. Concept Main Feature Sub. Feature
▶ Extra-Capacity
▶ Energy Saving
▶ Time Saving
Main
Feature
▶ 7.0 cu.ft.
▶ Energy Saving
[3200 Wh/Cycle]
▶ Time Saving
[Normal Course: 44 min]
Sub.
Feature
▶ Fuzzy Algorithm
▶ Easy Reversible Door
▶ Ergonomic Design

4. Remaining time display
1.Product Introduction
1-2. Specification
Item
Frontier I
(316LEW)
Mars II (203AEW)
Silver
White
Feature
용량(cu.ft. DOE)
7.3
7.0
Power source
Electric/Gas
Drying Cycle 9 7
Heater
5,300 W
(22,000Btu/hr)
Drying Level 5 3
Temp Select 4
Remaining time display
Yes
Drum light
Child lock
Reversible Door
Drum material
STSS
Window Size
15 inch
Size (WxDxH : Inch)
27x30x38
Performance
Cycle time
(AHAM 8lbs)
44 min
DOE Energy Factor
1.37(kg/Kwh)-Elec
1.2 (Kg/Kwh) Gas
Drying Noise
57 dBA
Design
Door
STSS +Chrome Trim
ABS + PP
Control Panel
LED
Display Color
Green

5. Depth With Door Open 90 Degrees
1.Product Introduction
1-3. Product Dimension
Dimension
Inches (cm)
Height
38”
(96.5)
Width
27”
(68.6)
Depth With Door Open 90 Degrees
49”
(124.5)
Depth
30-1/4”
(77.0)

6. 2.Changed Part List 2-1. Design Basic(Frontier1) Mars 2 Panel Display
Door
Frame-Front

7. 2.Changed Part List 2-2. Door Div Basic(Frontier1) Mars 2 Shape Assy
Cover Door( Stainless Decoration)
Inner D/Safety
Cover Door (Silver Color Decoration)

8. 2.Changed Part List 2-3. Panel Div Basic(Frontier1) Mars 2 Shape Assy
Separated Jog Dial & Power Button
All buttons are constructed by
separated parts.
Separated Jog Dial & Power Button,
Start /Pause Button

9. 2.Changed Part List 2-4. Frame-Front Div Basic(Frontier1) Mars 2 Shape
Assy
Panel
Capacity : 7.3 Cu.ft.
Capacity : 7.0 Cu.ft.

10. 2.Changed Part List 2-5. Design Div Basic(Frontier1) Mars 2 Shape Assy
PCB
Sub
Display type : Progress Bar +88 Seg
Function Button : 11 Ea
Display type : Progress LED +88 Seg
Function Button : 9Ea

11. 3.Instruction of Function
3-1. Control Panel

12. 3.Instruction of Function
3-1. Control Panel

13. 3.Instruction of Function
3-1. Control Panel

14. 3.Instruction of Function
3-2. Child Lock
How to Activate & Deactivate
To activate Child Lock, press the Time and Signal buttons at the same time for 3sec.
To cancel it, repeat the above.
Description:
1. It can be set up during the power-on or the operation.
2. With this function activated, all buttons except for the Power button are to be uncontrollable.
3. The Child Lock lamp will light up.
Notice:
1. When the power goes out and comes back again, the Child Lock function will keep being activated.
2. Just in case there are no buttons operating, except for the Power button, with its power back,
check “Child Lock Lamp”, please.

15. SUGGESTED TEMP. SETTINGS
3.Instruction of Function
3-3. Rack Dry
How to Mount Drying Rack
1. Open the door.
2. Mount Drying Rack in tumbler by engaging the two rear tails into the two recessed areas in the back wall.
3. Place the front tail of Drying Rack on top of the lint filter.
4. Place items to dry on the rack, giving enough space between them to give more air contact.
5. Close the door.
6. Use Time Dry. Select time based on the conditions of items such as their water contents and fabric styles.
Start the dryer. It may be necessary to reset the timer if a longer drying time is needed.
SUGGESTED ITEMS
SUGGESTED TEMP. SETTINGS
Washable sweaters
(block to shape; lay flat on rack)
Heat (Low/Extra Low)
Stuffed toys
(cotton or polyester fiber filled)
(foam or rubber filled)
Air Fluff
Foam rubber pillows
Sneakers
Fluff or Heat
WARNING – Drying foam rubber, plastic or rubber with a heat setting may cause damage to
the item and could lead to a fire. So, use Air Fluff only.

16. 4. Test Mode & Error Check 4-1-1. Continuous Run Mode
Power On State
(Normal User Mode)
Continuous Run Mode
Dry Level + Signal
3Sec
Continuous Run Mode:
1. Press Dry Level + Signal for 3 sec during Power On State (normal user mode).
2. Once in Continuous Run Mode, “cc” and the remaining time will blink in the 7-Segment.
3. The previous cycle will restart during Continuous Run Mode until the mode is deactivated.
4. During Continuous Run Mode, press Dry Level + Signal for 3 seconds to go back to normal
user mode. “cc” will go off and the remaining time will keep blinking.

17. 4. Test Mode & Error Check 4-1-2. Special Test Mode
Definition of Special Test Mode (Service Mode):
- Dryer should be on to activate Service Mode.
With the activation of Service Mode, it will display 0 (Default Special Test Mode).
How to Enter:
- To enter Service Mode , press Temp + Signal for 3 seconds, or until it sends out a beeping sound 3 times.
(same for all Frontier models.)

18. 4. Test Mode & Error Check 4-1-3. Sensor Bar Touch Data Mode
Definition of Sensor Bar Touch Data Mode:
It is to check the status of Sensor Bar.
How to Enter:
- Press Temp + Signal for 3 seconds during the drying process (same for all Frontier models.)
When there are wet items being dried, data will add up (from 0 to 1200 and repeating)
as the wet clothes touch the sensor bars.
It is to check the moisture sensor bars (if it does not change with wet clothes inside, check the sensor bars.)

19. 4. Test Mode & Error Check 4-1-4. Cycle Count Mode
Definition of Cycle Count Mode:
- It is to bring up the total number of cycles that User have carried out.
How to Enter:
Press the Signal button at Service Mode.

20. 4. Test Mode & Error Check 4-1-5. Software Version Mode
Definition of Software Version Mode:
- It is to retrieve its software version.
How to Enter:
- At Special Test Mode, press Temp until it sends out a beeping sound (same for all Frontier models.)
ex) In case of "U105",  U0 means major version "v1“ 05 means minor version "05"

21. 4. Test Mode & Error Check 4-1-6. System Check Mode
Power Off State
Dry Level + Power
System Check Mode
(Normal User Mode)
Definition of System Check Mode:
- It is to check Motor & Heater Relays.
How to Enter System Check Mode:
1. With the unit off, press Dry Level + Power.
2. " t2 " will light up.
3. Press Start/Pause. Then, it will work in the following order.
Motor(CW) Relay On → Heater Relay On → Heater Relay Off → Motor(CW) Relay Off (Repeating)
Caution! Do not give it too much testing time. It would over-burden the Main PCB.

22. Cause & Corrective Action
4. Test Mode & Error Check
4-2. Error items and Diagnostic Codes
Display
Description
Trigger
Cause & Corrective Action tS
Dryer Thermistor Short
Very low resistance
- Clogged lint screen.
- Restricted vent system.
- Check Thermistor resistance. tO
Dryer Thermistor Open
Very high resistance do
Door Open
Dryer running with Door open
- Close the door and run the dryer.
- Loose or open wire terminals in Door S/W. FE
Power Source Frequency Error
Abnormal Power Frequency
- Power frequency should be normal.

23. Cause & Corrective Action
4. Test Mode & Error Check
4-2. Error items and Diagnostic Codes
Display
Description
Trigger
Cause & Corrective Action dF
Door Circuit Failure
Invalid state for more than 256 msec
- Loose or open wire terminals in Door S/W. hE
Heater Error
Invalid heating temperature
- Restricted vent system.
- Check Thermistor resistance. bE
Button Error
Button held down for more than 75secs
- Button jammed. od
Excessive Dry
More than 240min drying time
Drying time is added up too much.  
Check Sensor Bars. Et
EEprom Fail
Invalid EEprom communication
- Replace PCB

24. 5.Reference Information
5-1. Troubleshooting
Problem
Possible Cause & Corrective Action
Will Not Start or Run
• All connectors are plugged in correctly.
• Dryer is plugged into the power outlet.
• Check if house fuses or circuit breaker is blown.
• Check if the door is closed properly (if it is open, “do” will light up).
• Check if the rotary selector dial works well.
• Check if Control Board is good.
• Check if the belt is cut off or Belt Cut-off switch is initiated.
• Check if Drive Motor is spinning properly.
• Check motor winding resistance: 2.88ohms between pin #3 and 4, 3.5ohms between pin #4 and 5.
Motor runs/ tumbler will not turn
• Check if the belt is cut off.
• Check if Idler Tension Spring is fatigued and get relaxed, pressing Belt S/W.
• Check if Idler Pulley is jammed or stuck.
Runs a few minutes and then stops
• Lint built-up around Drive Motor.
• Insufficient power.
• Blower Impeller stuck in Blower Housing.

25. 5.Reference Information
5-1. Troubleshooting
Problem
Possible Cause & Corrective Action
Blown Fuses
Tripped Circuit Breaker
(Electric Model)
• The amperage readings are at 240 volts. One line will be 24 amps and the other
line will be 21amps. The neutral line will be at 3 amps. If the above amperages
are present, then the house wiring, fuse box or circuit breaker could be
suspicious (faulty).
• Shorted heating element to housing.
• Incorrect wiring or wire-short to ground.
• Drive motor winding shorted to ground.
(Gas Model)
• During ignition, the dryer will draw 7 amps. With the burner ON, the dryer will
draw 4.5 amps. If the dryer is drawing amperages roughly about, then the house
wiring, fuse box or circuit breaker could be suspicious (faulty).
• Igniter harness loose and shorted to base.
• Incorrect wiring or wire shorted to ground.
• Drive motor winding shorting to ground.
No Heating (Motor Spinning)
• Defective Heater (Open Circuit).
• Hi-Limit trips easily or is open.
• Regulating thermostat trips easily or is open.
• Membrane Switch (Open – Centrifugal S/W).
• Check Thermistor.
• Check Sensor Bars

26. 5.Reference Information
5-1. Troubleshooting
Problem
Possible Cause & Corrective Action
Will Not Dry Gas Model
Poor Gas Ignition
When the dryer is operated on a heat setting, the igniter should be energized and burner shall fire within 45 seconds at 120 VAC. The failure of a component in this system will usually be indicated by one of three symptoms:
The igniter does not glow.
If the igniter does not heat up, remove power and using an ohmmeter, check the following:
• Open Radiant Sensor (Flame Sensor)
• Open Igniter
• Shorted Booster Coil
• Open wiring
• Bad Motor Switch (Centrifugal S/W, Neutral supply)
• No power from control ( L1 supply)
No gas ignition with the igniter glowing.
If the igniter heats up but the main burner flame is not ignited, remove power and using an ohmmeter, check the following:
• Open Secondary Coil
• Open Holding Coil
• Open wire harness
• Stuck Radiant Sensor (Stuck closed)
It dies after the ignition (gas).
If a normal ignition takes place and after a short while the flame goes out, check for the following:
• Radiant sensor contacts opening prematurely.
• Weak gas valve coil may get open when being stressed by higher Temps.
• Weak Hi-Limit
• Poor venting
• Bad drum rubber seal

27. Possible Cause & Corrective Action
5.Reference Information
5-1. Troubleshooting
Problem
Possible Cause & Corrective Action
Insufficient Drying
Too much wrinkle
Rough texture
Long drying time
• Clean Lint Filter.
• Remove any restriction in the exhaust system.
• Too long Exhaust Pipe (extended) or too many elbows.
• Insufficient air-intake.
• Incorrect tumbler speed due to the slipping of Tumbler Belt.
• Remove any restriction in Blower Impeller.
• Overloaded Dryer.
• Set the selection according to labels on the clothes.
• Clothes containing too much water.
Noise/Vibration
• Thumping - Check for loose tumbler baffle, worn or misaligned rear tumbler rollers, eccentric tumbler or stepped weld-seam on tumbler.
• Ticking - Check for loose wire harness or any restriction in Blower Wheel.
• Scraping - Check if front or rear bulkhead Felt Seal is out of position or Tumbler Front Bearing is worn out.
• Roaring - Check if Blower Wheel rubs on Blower Housing, or Motor Bearing is worn out.
• Popping/Squealing - Check for belt slipping.

28. 5.Reference Information
5-2. Wiring Diagram

29. 5.Reference Information
5-2. Wiring Diagram

30. <Radiant Sensor>
5.Reference Information
5-3. Component Check
Parts
Image
Description
Value
Thermistor
Unplug connector and test from wire insertion side.
Pin #2 and Pin #6 of CN6
10 77° F/25°C
Door Switch
Unplug connectors and test switch terminals.
Door open terminals COM to NC
Door open terminals COM to NO
Door closed terminals COM to NC
Door closed terminals COM to NO
Infinity
Less than 1 Ω
Lamp
 Check across terminals
80 to 100 Ω
Belt Switch
Check across terminals switch closed
Check across terminals switch open
[Gas]
[Electric]
<Radiant Sensor>
COM NO NC

31. Thermostat Cut Off 320°F/160°C, 25A Thermostat3 Thermostat2 Heater
5.Reference Information
5-3. Component Check
Parts
Spec
Description
Value
Thermostat 1
Thermostat Cut Off
185°F/85°C, 25A
Unplug connector and measure its resistance
Less than 1 Ω
Thermostat 2
Hi Limit
260°F/117°C, 25A (Electric)
230°F/110°C, 25A
(Gas)
Thermostat 3
Thermostat Cut Off 320°F/160°C, 25A
Heater
240V 5300W
Unplug connectors and test Heater terminals
10 Ω
Thermostat 1
Thermostat3 Thermostat Heater
Thermostat2
Electric Dryer
Gas Dryer

32. 5.Reference Information
5-3. Component Check
Parts
Image
Description
Value
Radiant Sensor
(Gas)
Unplug connectors and test sensor terminals.
Closed
Sensor Bars
Unplug connector and measure its resistance.
Pin #4 to Pin # 5 of CN6
Infinity dry load 190 Ω ± 10% wet load
Motor
Unplug harness connector and test motor circuits.
 Pin #4 and Pin #5 (Windings)
Pin #1 and Pin #2 (Centrifugal switch)
Refer to 5-2 wiring for differences between Electric & Gas
2 Ω
Open
Gas Valve
Unplug connectors and test valve terminals
(its numbering is from the front terminal.)
Check across terminals #1 and #3 (Booster Coil).
Check across terminals #1 and #2 (Holding Coil).
Check across terminals #2 and #3 (Both coils in series). Check across terminals #4 and #5 (Secondary Coil).
 550 Ω
1350 Ω
1900 Ω
1300 Ω

33. 5.Reference Information
5-4. Main PBA Layout (The Principle Part) ⑨ ① ③ ⑧ ⑩ ⑥ ② ⑤ ④ ⑦
Item
Part No.
Description ①
Ry1
Motor Relay ②
Ry2
Heater Relay ③
PC1~2
Check for the Frequency
Make the Zerocross
Door Lock Check ④
BD1
It Work to Change the AC to the DC ⑤
IC9
Drop the Voltage ⑥
IC1
Regulation for the 5V
Item
Part No.
Description ⑦
CE3
Charge the DC LINK (300V) ⑧
IC1
Drive the Relay
Supply the Current to the Acting Current ⑨
BZ1
Making a Sound ⑩
Micom
Control the Washing Machine

34. 5.Reference Information
5-5. Connector & Relay Terminal Description (Main PBA)
CN5
①Connects to Earth
②Connects to Door
CN2
①~⑬ Connects to Sub Display
for the Communication.
CN1
①~⑫ Connects to Sub Display
for the Communication.
CN3
①AC1
Relay 1
①Connects to
a Belt Switch of the Motor
②Connects to AC1
Relay 2
①Connects to Heater
②Connects to AC1
CN12
①NC
②Connects to Thermister1
③NC
④Connects to Moisture Sensor1
⑤Connects to Moisture Sensor2
⑥Connects to Themister2

35. 5.Reference Information
5-6. Sub PBA Layout (The Principle Part) ① ④ ④ ③ ②
Item
Part NO.
Description 1
DSP1
Display the Course 2
IC1 ~ 3
Drive the LED & Display
Supply the Current to the Acting Current 3
ENCODER1
Rotary Switch (For the Selecting a Course) 4
LED & KEY
Input the Detail Course
Display the Resent Course

36. 5.Reference Information
5-7. Connector & Relay Terminal Description (Sub PBA)
CN1
①~⑫ Connects to Main PBA
for the Communication.
CN2
①~⑬ Connects to Main PBA
for the Communication.

37. 5.Reference Information
5-8. Nomenclature
Model Code for Dealer
BOM Model Code DV 2 3 A E W /
XAA
Code for SEA
Dealer
A (All Buyer)
Color
W (White)
S (Imperial Silver)
Capacity
Power Source
- E : Electric
- G : Gas DV
(Dryer Vent Type)

38. 5.Reference Information
5-9. Models
Model code
SPEC
COLOR
DV203AEW
7.0 cu.ft Capacity
Electric type
240V/60Hz, Color : Wht
DV203AGW
Gas type
120V/60Hz, Color : Wht
DV203AES
240V/60Hz, Color : Imperial Silver
DV203AGS
120V/60Hz, Color : Imperial Silver

39. 5.Reference Information
5-10. Q & A
Q. What does it mean when chasing light appear in the display?
A. The chasing lights appear in the display when Wrinkle Prevent is selected. This lets you know that the dryer is tumbling intermittently for 95 minutes with room temperature air after the cycle is complete to reducing wrinkling. The load is dry and can be removed at any time during Wrinkle Prevent.
Q. Why is the estimated drying time so long?
A. The initial estimated drying time will be longer because the dryer has not yet detected the amount of moisture in the load. After the dryer has been running for several minutes, a more accurate estimate will be displayed. Remember, the times are estimated. The actual drying time may be longer or shorter, depending on the load.
Q. My dryer seems to run longer than I expect. Why?
A. The dryer automatically senses the dryness level of load. Be careful to avoid overloading your dryer. For best drying results, avoid mixing heavy and lightweight items in the same load.

40. 6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Top Cover
1. Unplug the unit.
2.Remove 2 screws from the tails.
3.Slide back Top Cover and remove it.
Drum Lifter
1.Unplug the unit.
2.Remove Top Cover.
3.Remove four screws from the Drum.
Control Panel
1.Unplug the unit.
2.Remove Top Cover.
3.Remove two screws from the
PCB case.
4.Unplug all connectors.
5.Remove four screws fixing
Control Panel to the unit.
6.Remove it from the unit.

41. Door Reversal / Disassembly
6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Door Reversal / Disassembly
1.Unplug the unit.
2.Remove two screws from Door
Lock Guide.
3.Remove two screws from Door
Hinge.
4.Assemble Door Lock Guide and
Door Assy to each other’s location.
5.Remove screws along the
perimeter of Door Inner Panel.
6.Remove Inner Panel.
7.Remove Gasket to separate Inner
Door Glass.
8.Remove the outer window by
pushing it outward.
9.Insert screwdriver into the slot and
lever up Door Latch.

42. 6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Front Panel Removal
1.Unplug the unit.
2.Remove Top Cover.
3.Remove Control Panel.
4.Remove five screws fixing
Front Panel to the unit.
5.Pull Front Panel forward and
disconnect the Interior Light
harness.
7.Lift the Front Panel out of the
three tabs on the bottom and
remove it from the unit.

43. Moisture Sensor & Incandescent Lamp
6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Front Bulkhead
1.Unplug the unit.
2.Remove Top Cover.
3.Remove Control Panel.
4.Remove Front Panel.
5.Remove five screws fixing
the Control Panel support.
6.Disconnect the Interior Light
harness.
7.Disconnect Moisture Sensor
wiring harness.
8.Remove the four Bulkhead
retaining screws.
9.Lift and remove Bulkhead from
the frame.
Moisture Sensor & Incandescent Lamp
1.Unplug the unit.
2.Remove Top Cover.
3.Remove Control Panel.
4.Remove Front Panel.
5.Remove fixing screws to
disengage Moisture Sensor
& Incandescent Lamp

44. 6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Drum
1. After the above knock-down to
Front Bulkhead, do the following.
2. Flip up Idler Pulley and slip out
Belt from it.
3.Grasp Drum with one hand
and Belt with the other, and
take out Drum.
* Carefully spread the cabinet as
needed to get extra clearance.
But, take care not to deform
the cabinet.
Rear Roller
(After removing
Rear Bulkhead)
1.After the knock-down to Rear
Bulkhead, do the following.
2.Remove Roller Keeper and nut.

45. 6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Motor/Blower
Assembly (1)
1.After the knock-down to Drum,
do the following.
2.Remove the two screws securing
Blower Intake Panel to Blower
Housing.
3.Remove Blower Intake panel.
4.Remove the blower securing
screw under the Thermistor.
5.Removed the screw at the
bottom of Blower Housing.
6.Plug out all the connectors.
7.Remove two screws securing
the motor bracket to the base.

46. 6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Motor/Blower
Assembly (2)
8.Remove the assy block by
disengaging it from its retaining
hooks at the bottom.
9.Lock Blower Wheel with a
screwdriver and remove the
14mm nut securing the blower
wheel to the shaft.
10.Remove Blower Wheel.
11.Remove the three screws
securing the blower housing to
the motor bracket.
12.Use a flat-head screwdriver to
lever out the motor retention
clamps.
13.Remove Motor from the unit

47. (For Electric Dryer, refer to Page54.)
6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Burner
(For Electric Dryer, refer to Page54.)
1.After the knock-down to Motor/
Blower Assy, do the following.
2.Shut off gas supply.
3.Disconnect gas pipe.
4.Remove all the connectors.
5.Remove two screws (one at the
front and the other one at the
back) securing Burner to Frame.
NOTE: The Igniter Bar is fragile.
So, take care when removing Burner Assy.
6.Remove the two screws attaching
the housing to Burner Bracket.
7.Remove Burner Assy from the unit.
Rear Bulkhead
1.After the knock-down to Drum,
do the following.
2.Remove 7 screws at the back of
the unit.
3.Lift Rear Bulkhead up and take it
out of its retaining slots.

48. 6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Vent Duct
1.After the knock-down to Rear
Bulkhead, do the following.
2.Remove 4 screws securing Vent
Duct Assy to the unit.
3.Remove the screw securing Vent
Duct to the bracket.
Sensors
(Thermostat,
Thermistor,
Radiant/Flame)
Remove each securing screws to
remove each of the sensors.
For differences between Gas and
Electric, refer to 5-3. Component
Check.

49. 6.Disassembly & Reassembly
PART NAME
DESCRIPTION
FIGURE
Move
Heater Assembly
1.After the knock-down to Motor/
Blower Assy, do the following.
2.Remove the screw (red) securing
Heater Assembly.
3.Slide it out of its guide at the back.
4.Plug out all the terminals.

50. The End