Samsung DV203 SERIES User manual

Fast Track Troubleshooting
Publication # tsDV203 Creation Date 1/22/2010
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: DV203***
DV206*** DV209***
DV218*** DV219***
DV306*** DV316***
DV317*** DV326***
DV328*** DV337***
DV338*** DV3C6***
Description Trigger Action Taken
Dryer Thermistor Short
Sensed
The Thermistor resistance is
very l ow.
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 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
Samsung 'Dryer' Diagnostic Code Quick Guide
Display
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.
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
TOUCH UP PAINT, BLUE ONYX DH81-11980A
TOUCH UP PAINT, IMPERIAL SILVE
R
DH81-11981A
TOUCH UP PAINT, NEAT WHITE DH81-11982A
TOUCH UP PAINT, STRATUS GRAY DH81-11983A
TOUCH UP PAINT, TANGO RED DH81-11984A
1

2

3

CN2 Sub PCB DisplayCN3
1 120vac N (Yel)
CN5
1 Earth Ground (Grn)
2 Door Sw (Blu)
Relay 1
1 Motor Belt Sw (Brn)
2 120vac L1 (Blk)
CN1 Sub PCB Display
Ass’y Duct Heater (Electric)
Ass’y Duct (Gas)
Ass’y Fan
Relay 2
1 Heater Cut Off T-Stat (Blu)
2 120vac L1 (Blk)
CN2
2-6 Thermistor (Blu-Red)
4-5 Moisture Sensor (Pnk-Org)
Relay 2
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
4

Sensor Bar Touch Data Mode
How to Enter:
Start Dryer tumbling, Press Temp + Signal for 3 seconds
during the drying process.
Open door, 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 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.
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.
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
5

Thermistor
Temp Fo Ω
50 20KΩ
60 15.8KΩ
77 10KΩ
85 8KΩ
95 6.5KΩ
115 4.3KΩ
140 2.5KΩ
160 1.7KΩ
175 1.3KΩ
200 850Ω
COM (Wht)
NO (Yel)
NC Lamp option
Dryer continues to run after cycle completed
Wrinkle Prevent option provides approximately 90 minutes of intermittent tumbling in unheated air at the end
of the cycle to reduce wrinkling. Press the Wrinkle Prevent button to activate 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.
6