Samsung DV50F9A6EVW, DV50F9A8EVP, DV50F9A8GVP, DV50F9A8GVW, DV50F9A6GVW Product Manual

CLOTHES DRYER

Technical Information

•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 (DV50F9A6E(G)*/DV50F9A7E(G)*/DV50F9A8E(G)*) for detailed installation, operating, testing, troubleshooting, and disassembly instructions.

CAUTION

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

DV50F9A6E(G)*/DV50F9A7E(G)*/DV50F9A8E(G)*..

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power.

Code No. : DC68-03171D_EN

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ALIGNMENT AND ADJUSTMENTS

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power.

ERROR ITEMS AND DIAGNOSTIC CODES

An occurrence of an Error will make a sound of error melody for 5sec and continuously show one of the Error Displays from the following errors.

	Error Display	Trigger	Action Taken
			Check for:
	tE	The Thermistor resistance is	- Clogged lint screen.
		very low or high.	- Restricted vent system.
			- Check Thermistor resistance.
	HE	Invalid heating Temp in running	Check for:
			- Restricted vent system.
		the dryer	- Check Thermistor resistance.
			Check for:
	dE	Running the dryer with door	- Close the door, and run the dryer
		open	- Loose or open wire terminals in Door
			Sense circuit.
	dF	Invalid door state for more than	Check for:
			- Loose or open wire terminals in Door
		256 milliseconds
			Sense circuit.
	bE2	Invalid state of key circuit short	Check for:
		for 30 secs	- Display PCB key circuit short or not
	FE		Check for:
		Invalid power source Frequency	- Not using regular power source frequency
			- Invalid power frequency sense circuit
		Electronic Control Problem	Check for:
	AE		- Check PCB and Wire harness.
		(Communication Error)
			- Replace PCB.
	Et	Invalid state of EEPROM	Check for :
		communication	- PCB with Eeprom circuit.
			Check for:
	2E	Electronic control problam	- Check PCB and Wire harness.
		(Over Voltage Error)	- Check Power supply
			- Replace PCB

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ALIGNMENT AND ADJUSTMENTS

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power.

TEST MODE

Mixed Load Bell +Dry Level 7 sec

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, display “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

Definition 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 it sends out a beeping sound.

-If pressing Mixed Load Bell + Temp Keys for 3 seconds in Service mode , it will return Normal mode.

-Even though entering Service mode, the operating cycle will not be influenced.

Sensor Bar Touch Data Mode

Definition 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 default mode of entering service mode

How to Enter:

-With Power On pressing Mixed Load Bell and Temp Keys for 3 seconds

Cycle Count Mode

Definition of Cycle Count Mode:

-This mode is to bring up the total number of cycles that User have carried out.

How to Enter:

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

Software Version Mode

Definition of Software Version Mode:

-It is to retrieve its software version

How to Enter:

-At Service Mode, press Temp until it sends out a beeping sound

ex) In case of “U0 05”, U0 means major version “U0” 05 means minor version “05”

-If press Temp key In Software Version Mode, it will return Service Mode.

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ALIGNMENT AND ADJUSTMENTS

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power.

Data Display Mode

Definition 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 1minute

How to Enter:

-With Power On, press AdjustUp Key + AdjsutDown Key for 7 seconds until it sends out a beeping sound .

-If not pressed any keys for 5 minutes, it will be set back from Data Display Mode

-If pressing AdjustUp Key in this mode ,Display Mode ID will be increased.

-If pressing AdjustDown Key in this mode ,Display Mode ID will be decreased.

•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

Definition of System Check Mode:

-“ t2 ” will display.

-System Check Mode(t2 mode) Progress Function Performed Start/Pause

Motor(CW) Relay On Heater Relay On Heater Relay Off, Motor(CW) Relay Off

How to Enter:

-While in Power Off, pressing the Dry Level + Power keys simultaneously will put the dryer into the System Check mode

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ALIGNMENT AND ADJUSTMENTS

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power.

TROUBLE DIAGNOSIS

-As the micom dry machine is configured of the complicate structure, there might be the service call.

Below information is prepared for exact trouble diagnosis and suitable repair guide.

Caution for the Repair and Replacement

Please follow below instruction for the trouble diagnosis and parts replacement.

1)As some electronic components are damaged by the charged static electricity from the resin part of dryer or the human body, prepare the human body earth or remove the potential differ ence of the human body and dryer by contacting the power supply plug when the work contacting to PCB is executed.

2)As the P.C.B assembly is designed for no trouble, do not replace the P.C.B assembly by the wrong diagnosis and follow the procedure of the trouble diagnosis when the micom is not operated normally.

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TROUBLE SHOOTING

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power.

	No	Problem	What To Do
			• All wires are hooked up to their corresponding terminals.
			• Dryer is plugged in.
			• Blown fuse or circuit breaker.
			• Door switch functional...door closed. Check for error code 3 (See
				Table for codedefinition).
	1	Will Not Start or Run	•	Start/Pause rotary selector dial functional.
			•	Control Board operational.
			• Belt off or broken and Belt Cut-off Switch operates.
			•	Drive motor functional.
			• Check motor winding resistance: 2.88ohms between pin #3 and
				4, 3.5ohms between pin #4 and 5.
		Motor runs/ tumbler	• Belt off or broken/damaged.
	2		•	Idler tension spring too weak or stretched.
		will not turn	• Idler pulley jammed or stuck.
			• Lint buildup around drive motor.
	3	Runs a few minutes	•	Low voltage present.
		and then stops	•	Blower impeller blocked in blower housing.
			• Drive motor - start switch contacts stuck closed.
			- Is the belt connected well?
		Blows fuses or trips	- Is the winding of the motor continuous?
	4			(Rotor winding, stator winding, generator)
		circuit breaker	-	Is the motor protector normal?
			• If above points are not found, the PCB assembly is out of order.
				Replace it.
			• During ignition the dryer will draw X amps. With the burner ON,
				the dryer will draw X amps. If the dryer is drawing amperages
		Blows fuses or trips		above this, then the house wiring, fuse box or circuit breaker is
	5	circuit breaker (Gas	•	suspected to be at fault.
		Model)		Igniter harness loose and shorted to base.
			• Incorrect wiring or wire shorted to ground.
			• Drive motor winding shorting to ground.
			Open heating element.
	6	Will not heat (motor	•	Hi-Limit trips easily or is open.
		runs)	•	Regulating thermostat trips easily or is open.
			•	Membrane switch open.
			•	Check Thermistor.
		Will Not Dry Gas	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
	7	Model Poor Gas
			failure of a component in this system will usually be indicated by one
		Ignition
			of three symptoms:
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TROUBLE SHOOTING

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power.

	No	Problem	What To Do
			If the igniter does not heat up, remove power and using an
			ohmmeter, check the following:
			•	Open flame sensor
	8	The igniter does not	•	Open igniter
		glow	•	Shorted booster coil
			•	Open wiring
			• Bad motor switch ( Neutral supply)
			• No power from control ( L1 supply)
			If the igniter heats up but the main burner flame is not ignited,
			remove power and using an ohmmeter, check the following:
	9	Igniter glows - No gas	•	Open secondary coil
		ignition	•	Open holding coil
			•	Open wire harness
			• Stuck flame sensor (Stuck closed)
			If a normal ignition takes place and after a short while the flame goes
			out, check for the following:
		The gas is ignited but	•	Radiant sensor contacts opening prematurely.
	10	the flame goes out	•	Weak gas valve coil may open when stressed by higher Temps.
			• Weak Hi-Limit
			•	Poor venting
			•	Bad drum seals
			• Lint filter is not clean.
			•	Restriction in exhaust.
			• Outside exhaust hood damper door stuck closed.
		Improper drying	•	Exhaust too long, too many elbows, flex ductwork installed.
	11	clothes wrinkled	•	Poor intake air available for the dryer.
		Rough texture long	•	Incorrect tumbler speed. Tumbler belt slipping.
		dry time	•	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 insufficient spin out by washer.
			• Thumping Check for loose tumbler baffle, 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
	12	Noisy and/Or	•	wheel area.
		Vibration		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.
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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) 		BeltCut-offS/W
	Thermistor resistance 10K Ω @ 25°C 77°F	-Leveropen:Resistancevalue<1Ω
	Thermostat 1 resistance < 1Ω	-Leverpush:Resistancevalue:∞Ω

Thermostat 3 resistance < 1Ω

-If resistance is infinity, replace thermostat 3.

Thermostat 2 resistance < 1Ω

-If resistance is infinity, replace thermostat 2.

Heater resistance 10 Ω

-If resistance is infinity, replace Heater.

Measure resistance of the following terminal

1)Door switch : Off

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

Vent Sensing - Thermistor Resistance

238.23K Ω @ 25 77

Motor (Electronic & GAS)

Contacts

Function 1M 2M 3M 5M 6M

Start

Run

= Contact closed

Centrifugal Switch (Motor)

2.88Ω between Pin# 3 and 4

3.5Ω between Pin# 4 and 5

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