Samsung DV338 series User manual

Description Trigger Action Taken
Dryer Thermistor Short
Sensed
The Thermistor resistance is
ver y l ow .
Check for: Clogged lint screen,
Restricted vent system, Thermistor
resistance.
Dryer Thermistor Open
Sensed
The Thermistor resistance is
ver y hi g h.
Check for: Clogged lint screen,
Restricted vent system, Thermistor
resistance.
dO
dE Door Open Running the dryer with door open
Check for: Loose or open wire
terminals in Door Sense circuit.
FE Power source frequency
Error Invalid power source Frequency Check for: Non Utility power supply
dF Door Circuit Failure Invalid state for more than 256
milliseconds
Check for: Loose or open wire
terminals in Door Sense circuit.
hE or HE Heater Error Invalid heating Temp in running
the dryer
Check for: Restricted vent system,
Thermistor resistance.
bE Button Error PCB key closed for 75 sec. Check Display PCB for stuck button
od Over Dry Invaled Dry Time Excessive Dry
Time Inspect seensor bars
EEprom Fail Invalid state of Eeprom
communication Replace Main PCB
Samsung 'Dryer' Diagnostic Code Quick Guide
Display
Fast Track Troubleshooting
Publication # tsDV407 Revision Date 06/27/2011
Models:DV338*** DV339***
DV407*** DV409***
DV410*** DV419***
DV438*** DV448***
IMPORTANT SAFETY NOTICE – “For Technicians Only” This service data sheet is
intended for use by persons having electrical, electronic, and mechanical experience
and knowledge at a level generally considered acceptable in the appliance repair trade.
Any attempt to repair a major appliance may result in personal injury and property
damage. The manufacturer or seller cannot be responsible, nor assume any liability for
injury or damage of any kind arising from the use of this data sheet.
NOTICE: All Dryers Parts Change
6/2010: Motor Pulley, page 5;
Blower Housing, page 4
SUPPORT INFORMATION
Training — Plus One
http://my.plus1solutions.net/clientPortals/samsung/
Help — GSPN http://service.samsungportal.com/
Samsung Product Support TV
http://support-us.samsung.com/spstv/howto.jsp
Customer information videos and chat programs
Programs for Fridges, Laundry, Ranges & D/W

CN2 Sub PCB Display
CN6
1 Earth Ground
(Grn)
CN1
1 120vac N (Brn)
2 Sub PCB (Wht)
3 Sub PCB (Yel)
Relay 1
1 Motor Belt Sw (Brn)
2 120vac L1 (Blk)
CN7
1Water Valve (Blk)
2 Door Sw (Blu)
Ass’y Duct Heater (Electric)
Ass’y Duct (Gas)
Ass’y Fan
Relay 6
1 Heater Cut Off T-Stat (Blu)
2 120vac L1 (Blk)
CN2
3-6 Thermistor (Blu-Red)
4-5 Moisture Sensor (Pnk-Org)
Relay 6
1 Gas Hi Limit T-Stat (Blu)
2 120vac L1 (Blk)
F0005 = DC47-00017A
A0369 = DC47-00015A
F0005 = DC47-00018A
Thermistor W0035 = DC32-00007A
F0005 = DC47-00016A
CN5
1 Lamp (Vio)
3 Water Valve (Wht)
5 Water Valve (Red)
New Version of
Blower Housing, it
may be necessary to
separate the harness
wrap on replacement
housing. Please
maintain shielding
on the low voltage
wires.

Location consideration In the USA:
 All Dryers Must be vented to the outside.
 Only rigid or flexible metal duct should be
used for venting.
Sensor Bar Touch Data Mode
How to Enter:
Press Time + Temp + Power
Open the door and touch the sensor bars, it will toggle
back and forth between 0 – 1
Test mode subject to change without notice
Cycle Count Test Mode
How to Enter:
Press Signal + Wrinkle Prevent Keys for 3 sec during
Power On State.
Press Signal key for 3 seconds (until beep)
Note: Test mode subject to change without notice
Software Version Test Mode
How to Enter:
Press Signal + Wrinkle Prevent Keys for 3 sec during
Power On State.
Press Temp key for 3 seconds (until beep)
Note: Test mode subject to change without notice
Temperature Test Diagnostic Mode
How to Enter:
Press Signal + Wrinkle Prevent Keys for 3 sec during
Power On State.
Press Time + Wrinkle Prevent Keys and 7-segment will
display the temperature in Celsius.
Compare vent temp to drum temp to see air flow.
Do not use dryer to dry clothes which have traces of any flam-
mable substance, such as vegetable oil, cooking oil, machine
oil, flammable chemicals, thinner, etc., or anything containing
wax or chemicals, such as mops and cleaning cloths. Flamma-
ble substances may cause fabric to catch fire by itself.
Dryer continues to run after cycle completed
Wrinkle Prevent option provides approximately 90 minutes
(20 continuous and 70 intermittent) of tumbling in unheated
air at the end of the cycle to reduce wrinkling.
Press the Wrinkle Prevent button to activate or deactivate this
feature. The indicator light above the pad will illuminate when
Wrinkle Prevent is selected. Chasing lights appear in the dis-
play when the Wrinkle Prevent option is selected. The load is
dry, and can be removed at any time during the Wrinkle Pre-
vent cycle.
Special Test Mode:
While in Power Off, pressing the Dryness Level + Power keys simultaneously will put the dryer into the System Check
mode “ t2 “ will display. System Check Mode Progress t2 mode Function Performed Start/Pause Motor(CW) Relay
On →Heater Relay On →Heater Relay Off →Motor(CW) Relay Off (Circulation) Caution! Do not give it too
much testing time. It will over-burden the Main PCB.
Electrical Dryers 240 VAC, 60 Hz, 30 Amps, 3-wire or
4-wire installations
Gas Dryers 120 VAC, 60 Hz, 15 Amps, 3-wire installations
Door Switch
COM (Wht)
NO (Yel)
NC
New
DC81-00220A
SUBJECT: Dryer belt slides off the pulley when
manually rotated counter-clockwise (ccw)
SYMPTOM: The dryer drum will not turn. On occa-
sions, the customer will rotate the drum counter
clockwise (CCW) to check for any remaining
clothes left in the dryer drum. By rotating the drum
CCW, the idler arm may shift causing the belt to
slide off the pulley.
SOLUTION: To prevent the dryer belt from sliding
off the pulley, the pulley has been redesigned.
The Outside Diameter has been changed from
22mm to 27mm.
Make sure the
idler pulley & the
motor pulley are
in a straight line,

time
Time and Control Temp.
1st Heating Resign 1 Spray Resign 2nd Heating Resign 2nd Spray Resign 3rd Heating Resign Cooling
resign
Time
Control Temp.
Time
Control Temp.
Time
Control Temp.
Time
Control Temp.
Time
Control Temp.
Time
Heat
er
Off
Heat
er
On
Heat
er
Off
Heat
er
On
Heat
er
Off
Heat
er
On
Heat
er
Off
Heat
er
On
Heat
er
Off
Heat
er
On
20
min 1min. 58Ԩ50Ԩ1min. 58Ԩ50Ԩ1min. 58Ԩ50Ԩ1min. 58Ԩ50Ԩ13mi
n. 58Ԩ50Ԩ3min.
Testing Steam Cycle:
Select Wrinkle Care cycle for 4 minutes, check for heat and moisture. If both are present, the dryer is working properly
Major Dryer Spray
Components
Gas Valve Testing
Unplug connectors and test valve terminals
(its numbering is from the front terminal.)
Check across terminals #1 and #3 (Booster Coil). 550 Ω
Check across terminals #1 and #2 (Holding Coil). 1350 Ω
Check across terminals #2 and #3 (Both coils in series).1900 Ω
Check across terminals #4 and #5 (Secondary Coil). 1300 Ω
Laundry Touch Up Paints
TOUCH UP PAINT, BLUE ONYX DH81-11980A
TOUCH UP PAINT, IMPERIAL SILVER DH81-11981A
TOUCH UP PAINT, NEAT WHITE DH81-11982A
TOUCH UP PAINT, STRATUS GRAY DH81-11983A
TOUCH UP PAINT, TANGO RED DH81-11984A

Testing Main PCB power output to Heating
& Motor circuit.
With motor running in the heating mode,
read AC voltage across RY6 and RY1.
Any voltage reading means Main PCB is
defective.
See page 4 for Main PCB layout for testing.
Testing Motor circuit.
With power off read
resistance between
RY1 Brown and CN7
Blue.
Resistance reading of
good motor circuit is
about 1.9Ω. To test
thermostat and switch
use ohm meter on
lowest scale, any
resistance replace
component.
See page 4 for Main
PCB layout for testing.

Testing Electric Heater circuit.
Disconnect Blue wire from RY6, turn power on, start dryer read voltage between RY6 Blue wire and CN6
Green wire.
Reading of 120VAC means a proper operating heater circuit. 0VAC means open in circuit.
To test thermostats use ohm meter on lowest scale, any resistance replace component
See page 4 for Main PCB layout for testing.