Samsung DV56H9000G Series Manual

CLOTHES DRYER

Technical Information

CAUTION

All safety information must be followed as provided in Service Manual of

DV56H9000E(G)*.

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer

before servicing, unless testing requires power.

Code No. : DC68-03171F_EN

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.

• 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(DV56H9000E(G)*)fordetailedinstallation,operating,testing,

troubleshooting, and disassembly instructions.

DV9000HA DRY_TECH MANUAL_DC68-03171F_EN.indd 1 2014-1-17 14:00:25

ERROR ITEMS AND DIAGNOSTIC CODES

When an error occurs, the dryer will sound an error tone for 5 seconds and show one of the

following Error Codes in its display continuously.

Error Display Trigger Action Taken

tE The Thermistor resistance is

very low or high.

Check for:

- Clogged lint screen.

-Restrictedventsystem.

- Check Thermistor resistance.

dE Dryer running with door open.

Check for:

- Close the door and run the dryer.

- Check for loose or open wire terminals in

Door Sensing circuit.

dF Invalid door condition.

Check for:

- Loose or open wire terminals in Door

Sense circuit.

bE2 Key on display panel in invalid

state.

Check for:

- Check if display PCB circuit has short.

FE Invalid power source frequency.

Check for:

- Not using regular power source frequency.

- Faulty power frequency sense circuit.

9E1 Electronic control problem.

(Over Voltage Error)

Check for:

- Check PCB and Wire harness.

- Check Power supply.

AE Electronic Control Problem.

(Communication Error)

Check for:

- Check PCB and Wire harness.

-ReplacePCB.

EEE Invalid state of Eeprom

communication.

Check for :

- PCB with Eeprom circuit.

HE Invalid heating Temp in running

the dryer. Call customer service.

ALIGNMENT AND ADJUSTMENTS

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

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TEST MODE

Continuous Run Mode:

1. Press Mixed Load Bell + Dry Level for 7 sec during Power On State (Normal User Mode).

2. OnceinContinuousRunMode,displays“CC”for1secandthenumberofCyclefor1secand

the remaining time for 1 sec in turns.

3. ThepreviouscyclewillrestartduringContinuousRunModeuntilthemodeisdeactivated.

4. DuringContinuousRunMode,pressMixedLoadBell+DryLevelfor7secondstoreturnto

normal user mode.

Service Mode

Denition of Service Mode

- Dryer must be on before Service Mode can be entered.

- Upon entry into Service Mode, the Sensor Bar Touch Data will be shown (Default Service

Mode).

How to Enter:

- To enter Service Mode, press Mixed Load Bell and Temp Keys for 3 seconds, until dryer beeps.

-Press Mixed Load Bell + Temp Keys for 3 seconds in Service mode to return Normal mode.

-Even though entering Service mode, the operating cycle will not be inuenced.

Sensor Bar Touch Data Mode

Denition of Sensor Bar Touch Data Mode:

- This action will put the dryer into sensor bar touch data mode.

- Dryer will display Sensor Bar data. This mode is the default initial service mode.

How to Enter:

- With Power On, press Mixed Load Bell and Temp Keys for 3 seconds.

Cycle Count Mode

Denition of Cycle Count Mode:

- This mode displays the total number of cycles the dryer has performed.

How to Enter:

-To enter cycle count mode, press the Mixed Load Bell in Service Mode.

Software Version Mode

Denition of Software Version Mode:

- Displays the software version.

How to Enter:

- In Service Mode, press Temp until the dryer beeps.

Softwareversionexample:Incaseof“U005”,U0meansmajorversion“U0”05meansminor

version“05”.

- Press the Temp Key in the Software Version mode to return to Service Mode.

ALIGNMENT AND ADJUSTMENTS

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

Mixed Load Bell

+Dry Level 7 sec

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Data Display Mode

Denition of Temperature Display Mode:

- Display Mode 0 : Temperature data (Celsius)

- Display Mode 1 : Average Touch Sensor data for 1 minute

- Display Mode 2 : Average Temperature (Celsius) data for 1 minute

How to Enter:

- With Power On, press AdjustUp Key + AdjsutDown Key for 7 seconds until the dryer beeps.

- If no keys are pressed for 5 minutes, Data Display Mode will terminate.

- Press the AdjustUp Key to increase the Display Mode ID.

- Press the AdjustDown Key to decrease the Display Mode ID.

• Converting °C  °F

Celsius(°C) -30 -10 10 30 50 70 F =9/5C + 32

Fahrenheit(°F) -22 14 50 86 122 158

System Check Mode

Denition of System Check Mode:

- “02”willdisplay.

- System Check Mode (02 mode) Progress Function Performed Start/Pause

Motor(CW)RelayOnHeaterRelayOnHeaterRelayO,Motor(CW)RelayO

How to Enter:

- WhileinPowerO,presstheDryLevel+Powerkeyssimultaneouslytoputthedryerintothe

System Check mode.

ALIGNMENT AND ADJUSTMENTS

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

DV9000HA DRY_TECH MANUAL_DC68-03171F_EN.indd 4 2014-1-17 14:00:26

TROUBLE DIAGNOSIS

- The information below is designed to help you arrive at an exact trouble diagnosis and

suitable repair.

Caution for the Repair and Replacement

1) As some electronic components can be damaged by static electricity from the resin part of

dryer or from a human body, make sure you remove the potential for static discharge by

grounding yourself or by contacting the power supply plug before you work on the PCB.

2) The P.C.B, assembly is designed to be durable and trouble-free. Do not replace the P.C.B

assembly unless your diagnosis identies the P.C.B assembly as the cause of the problem.

Follow the trouble diagnosis procedure when the micom is not operating normally to ensure

you replace the correct parts.

ALIGNMENT AND ADJUSTMENTS

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

Please follow below instruction to diagnose the problem and determine which, if any,

parts need to be replaced.

DV9000HA DRY_TECH MANUAL_DC68-03171F_EN.indd 5 2014-1-17 14:00:26

No Problem What To Check or Do

1Will Not Start or Run

•Conrm all wires are hooked up to their corresponding

terminals.

•Conrm dryer is plugged in.

•Check for blown fuse or circuit breaker.

•If door switch functional...door closed. Check for error code 3

(See Table for code denition).

• Check if Start/Pause rotary selector dial functional.

• Check if Control Board operational.

• Check if beltoorbrokenandBeltCut-oSwitchoperates.

• Check if drive motor functional.

• Check motor winding resistance: 2.88ohms between pin #3 and

4, 3.5ohms between pin #4 and 5.

2Motor runs/ tumbler

will not turn

• Check if beltoorbroken/damaged.

• Check if idler tension spring too weak or stretched.

• Check if idler pulley jammed or stuck.

3Runs a few minutes

and then stops

• Check for lint buildup around drive motor.

• Check if low voltage present.

• Check if blower impeller blocked in blower housing.

• Check if drive motor - start switch contacts stuck closed.

4Blows fuses or trips

circuit breaker

- Is the belt connected well?

- Is the winding of the motor continuous?

(Rotorwinding,statorwinding,generator)

- Is the motor protector normal?

•If there are no problems with the items above, the PCB assembly

isdefective.Replaceit.

Blows fuses or trips

circuit breaker (Gas

Model)

•During ignition, the dryer will draw X amps. With the burner ON,

the dryer will draw X amps. If the dryer is drawing amperages

above this, then suspect the house wiring, fuse box, or circuit

breaker is at fault.

•Igniter harness loose and shorted to base.

•Incorrect wiring or wire shorted to ground.

•Drive motor winding shorting to ground.

6Will not heat (motor

runs)

Open heating element. Check if:

•Hi-Limit trips easily or is open.

•Regulatingthermostattripseasilyorisopen.

•Membrane switch open.

•Check Thermistor.

Will Not Dry Gas

Model Poor Gas

Ignition

When the dryer is operated on a heat setting, the igniter should be

energizedandburnershouldrewithin45secondsat120VAC.The

failure of a component in this system will usually be indicated by one

of three symptoms:

TROUBLE SHOOTING

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

DV9000HA DRY_TECH MANUAL_DC68-03171F_EN.indd 6 2014-1-17 14:00:26

No Problem What To Check or Do

8The igniter does not

glow

If the igniter does not heat up, remove power and, using an

ohmmeter, check the following:

•Open ame sensor

•Open igniter

•Shorted booster coil

•Open wiring

•Bad motor switch (Neutral supply)

•No power from control (L1 supply)

9Igniter glows - No gas

ignition

If the igniter heats up, but the main burner ame does not ignite,

remove power and, using an ohmmeter, check the following:

•Open secondary coil

•Open holding coil

•Open wire harness

•Stuck ame sensor (Stuck closed)

10 The gas is ignited but

the ame goes out

If a normal ignition takes place and after a short while the ame goes

out, check for the following:

•Radiantsensorcontactsopeningprematurely.

•Weak gas valve coil may open when stressed by higher Temps.

•Weak Hi-Limit

•Poor venting

•Bad drum seals

Improper drying,

clothes wrinkled,

Rough texture, long

dry time.

•Lint lter is not clean.

•Restrictioninexhaust.

•Outside exhaust hood damper door stuck closed.

•Exhaust too long, too many elbows, ex ductwork installed.

•Poor intake air available for the dryer.

•Incorrect tumbler speed. Tumbler belt slipping.

•

Blower impeller bound; check for foreign material in blower area.

•Customer overloading dryer.

•Check clothing labels for fabric content and cycle selected.

•Clothes too wet due to insucient spin out by washer.

12 Noisy and/Or

Vibration

•Thumping: Check for loose tumbler bae, rear tumbler roller(s)

worn or misaligned, out-of-round tumbler or high weld seam on

tumbler.

•Ticking: Check for loose wire harness or object caught in blower

wheel area.

•Scraping: Check for front or rear bulkhead felt seal out of

position or worn tumbler front bearings.

•Roaring:Checkforblowerwheelrubbingonblowerhousingor

bad motor bearings.

•Popping or squealing sound: Check for a sticky or frayed belt.

TROUBLE SHOOTING

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

DV9000HA DRY_TECH MANUAL_DC68-03171F_EN.indd 7 2014-1-17 14:00:26

TROUBLE SHOOTING

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

COMPONENT TESTING PROCEDURES

Component Electrical Testing (with ohmmeter)

Thermistor resistance 10K Ω @ 25°C 77°F

Thermostat 1 resistance < 1Ω



Thermostat 3 resistance < 1Ω

- If resistance is innity, replace thermostat 3.



Thermostat 2 resistance < 1Ω

- If resistance is innity, replace thermostat 2.

Heater resistance 13 Ω (PIN 2-3)

Heater resistance 34 Ω (PIN 1-2)

- If resistance is innity, replace Heater.



Measure resistance of the following terminal

1) Doorswitch:O

Terminal : “COM” - “NC” (1-3) : <1Ω

Terminal : “COM” - “NO” (1-2) : ∞ Ω

2) Door switch : On

Terminal : “COM” - “NC” (1-3) : ∞ Ω

Terminal : “COM” - “NO” (1-2) < 1Ω



BeltCut-oS/W

-Leveropen:Resistancevalue<1Ω

-Leverpush:Resistancevalue:∞Ω

VentSensing-ThermistorResistance

238.23K Ω @ 25℃77℉

Motor (Electronic & GAS)

Contacts

= Contact closed

Centrifugal Switch (Motor)

2.0Ω between

Pin# 3 and 4

2.3Ω between

Pin# 4 and 5

Function 1M 2M 3M 5M 6M

Start

Run

DV9000HA DRY_TECH MANUAL_DC68-03171F_EN.indd 8 2014-1-17 14:00:28

GAS MODEL

TROUBLE SHOOTING

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

Radiant Sensor(10RS)

Resistancevalue<1Ω

Ifresistanceisinnite,replaceRadiantsensor

Igniter(101D)

Resistancevalue40~400Ω

If resistance is innite, replace Igniter

Gas Valve(25M01A)

Valve1-2:Resistancevalueabout1.2KΩ

Valve1-3:Resistancevalueabout0.5KΩ

Valve4-5:Resistancevalueabout1.2KΩ

If resistance is innity, replace Valve

Thermostat (60T21 Hi-Limit)230F-50F

Resistancevalue<1Ω

If resistance is innity, replace Thermostat

DV9000HA DRY_TECH MANUAL_DC68-03171F_EN.indd 9 2014-1-17 14:00:29

TROUBLE SHOOTING

WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to dryer before

servicing, unless testing requires power.

Sensor Bars & temperature sensor check

Sensor Bars - Disconnect harness and test Pink wire

Pin 4 to Orange wire Pin 5.

Approx∞Ωwithoutlaundry

Approx190Ω±10%withwetclothes

Cycling Thermistor 1 - Disconnect harness and test

BluewirePin3toRedwirePin6.

Approx10KΩat25°C/77°F

Vent Thermistor 2 (Vent sensor model only

)

-Disconnect harness and test

Yellow wire Pin 2 to White wire Pin 7.

Approx238.23KΩat 25 °C/77 °F

RY6RY7

CN4

DV9000HA DRY_TECH MANUAL_DC68-03171F_EN.indd 10 2014-1-17 14:00:30

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