Samsung DV330AEW User manual

Fast Track Troubleshooting
Publication # tsDV330 Revision Date 06/27/2011
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.
Models:
DV330AEW DV330AGW
DV330AEB DV330AGB
Location consideration In the USA:
 All Dryers Must be vented to the outside.
 Only rigid or flexible metal duct should be
used for venting.
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
Description Trigger Action Taken
Dryer Thermistor Short
Sensed
The Thermistor resistance is
ve ry l o w.
Check for: Clogged lint screen,
Restricted vent system, Thermistor
resistance.
Dryer Thermistor Open
Sensed
The Thermistor resistance is
very high.
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
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

CN4 RY 6CN6 RY 5 CN7 CN5 CN1

CN4 RY 6CN6 RY 5 CN7 CN5 CN1

Ass’y Duct Heater (Electric)
Ass’y Duct (Gas)
Ass’y Fan
F0005 = DC47-00017A
A0369 = DC47-00015A
F0005 = DC47-00018A
Thermistor W0035 = DC32-00007A
F0005 = DC47-00016A
CN1
1 120vac N (Brn)
2 Sub PCB (Wht)
3 Sub PCB (Yel)
Relay 1
1 Motor Belt Sw (Brn)
2 120vac L1 (Blk)
Relay 6
1 Gas Hi Limit T-Stat (Blu)
2 120vac L1 (Blk)
Relay 6
1 Heater Cut Off T-Stat (Blu)
2 120vac L1 (Blk)
CN5
1 Lamp (Vio)
CN6
1 Earth Ground (Grn)
CN4
3-6 Thermistor (Blu-Red)
4-5 Moisture Sensor (Pnk-Org)
CN2 Sub PCB Display
5-4 5VDC (Wht-Pnk)
6-4 15VDC (Red-Pnk)
CN7
1 Motor #6 (Blk)
2 Door Sw (Blu)
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.

Sensor Bar Touch Data Mode
How to Enter:
Power on dryer, open door and press in door switch.
Start dryer tumbling. Press Temp + Signal for 3 sec.
Touch both sensor bars with wet cloth, sensor hit numbers
show in display.
Note: Test mode subject to change without notice
Cycle Count Test Mode
How to Enter:
Press Temp + Signal Keys for 3 sec during Power On
State.
Press Signal for 3 seconds (until beep)
Note: Test mode subject to change without notice
Software Version Test Mode
How to Enter:
Press Temp + Signal Keys 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 Adjust Time Up + Down Keys for 3 sec during
Power On State.
Press Adjust Time Up and it will display the temperature
in Celsius.
Compare vent temp to drum temp to see air flow.
This can be with just power on or dryer running.
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
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 deac-
tivate this feature. The indicator light above the pad will illuminate when Wrinkle Prevent is selected. Chasing
lights appear in the display when the Wrinkle Prevent option is selected. The load is dry, and can be removed
at any time during the Wrinkle Prevent cycle.
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.
New
DC81-00220A
Special Test Mode:
 While in Power Off, pressing the Dry 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)
Make sure the idler pulley & the motor pulley are in
a straight line, bend if needed

RY6CN6
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.

RY 6 RY 5
RY 5 CN7
Testing Main PCB power output to Heating
& Motor circuit.
With motor running in the heating mode,
read AC voltage across RY6 and RY5.
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
RY5 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.