Kenmore 40289032010 Manual

CLOTHES DRYER
Technical Information
Models: 402.89032010
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 for detailed installation, operating, testing, troubleshooting, and
disassembly instructions.
A CAUTION
All safety information must be followed as provided in Service Manual.
A WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer
before servicing, unless testing requires power.
Code N o .: DC68-02365C

INFORMATION CODES
A 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 5 seconds and continuously show
one of the Error Displays from the following errors.
2

TEST MODE
A WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before
servicing, unless testing requires power.
Continuous Run Mode
How to Enter:
Buttons to press to enter test
Dry Level + Chime
7 Sec
Dryer Status for test
Power On State
(Normal User Mode)
Test Mode
Continuous Run Mode
Continuous Run Mode:
1. Press "Dry Level" + "Chime” for 7 seconds during Power On 5tate(Normal User Mode).
2. Once in Continuous Run Mode, 7-Segment will toggle display "cc" and the remaining time.
3. The previous cycle will restart during Continuous Run Mode until Continuous Run Mode is
disabled.
4. During Continuous Run Mode, press "Dry Level" + "Chime" for 7 seconds to return to Normal
User Mode. 7-segment will no long display "cc" and only display the remaining time.
Service Mode
Service Mode:
This mode is composed to Sensor Bar Touch Data Display Mode and Cycle Count Display Mode
and Software Version Display Mode. Those are Special Test Mode.
How to Enter:
1. Dryer must be on before Service Mode can be entered.
2. Press 'Temp" and "Chime" Keys for 3 seconds, or until 3 beeps are heard.
3. The machine will now be in Service Mode.
Sensor Bar Touch Data Display Mode
Definition of Sensor Bar Touch Data Display Mode:
1. This mode is default mode of Special Test Mode(lnitial Special Test Mode).
2. Dryer will display Sensor Bar Data.
How to Enter:
This is same as a Service Mode.
Definition of Cycle Count Mode:
1. This mode is second mode of Special Test Mode.
2. Dryer will display Cycle number.
How to Enter:
To enter Special Test Mode press While in Service Mode pressing the "Chime" key until the
control beep.

TEST MODE
A WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before
servicing, unless testing requires power.
Software Version Display Mode
Definition of Software Version Display Mode:
1. This mode is third mode of Special Test Mode.
2. Dryer will display software version.
How to Enter:
1. To enter Special Test Mode press While in Service Mode pressing the 'Temp" key until the
control beep.
example) In case of "U105", "U1" means major version, "05" means minor version.
Temperature Display Mode(in Celsius)
Definition of Temperature Display Mode:
Dryer will display temperature of drum inside in Celsius.(Unit is0.1°C)
How to Enter:
1. Under Normal User Mode, Press "More Time" and "Less Time" keys simultaneously for 7
seconds.
2. This action will put the dryer into Touch Sensor Mode.
3. Under Touch Sensor Mode, Press "More Time" Key.
• Converting °C -» °F
Celsius(°C) 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00
Fahrenheit(°F) 32.00 50.00 68.00 86.00 104.00 122.00 140.00 158.00
Celsius(°C) 80.00 90.00 100.00 110.00 120.00
Fahrenheit(°F) 176.00 194.00 212.00 230.00 248.00
System Check Mode
How to Enter:
Buttons to press to enter test Test Mode
Temp + Power Key System Check Mode
Dryer Status for test
Power Off State
(Normal User Mode)
System Check Mode:
1. While in Power Off, pressing the 'Temp" + "Power" keys simultaneously will put the dryer into
the System Check Mode.
2. " t2" will display.
3. 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)
4

TROUBLE SHOOTING
A 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) Perform troubleshooting before replacing the PCB assembly.

TROUBLE SHOOTING
A WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before
servicing, unless testing requires power.
No Problem Recommended Checks/Procedures
1Will Not Start or Run
• Check power to the machine.
• Dryer is plugged in.
• Blown fuse or circuit breaker.
• Door switch functional...door closed. Check for error code 3 (See
Table for codedefinition).
• 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.
2Motor runs/ tumbler
will not turn
• Belt off or broken/damaged.
• Idler tension spring too weak or stretched.
• Idler pulley jammed or stuck.
3Runs a few minutes
and then stops
• Lint buildup around drive motor.
• Low voltage present.
• Blower impeller blocked in blower housing.
• Drive motor - start switch contacts stuck closed.
4
Blows fuses or trips
circuit breaker while
running(Elec. Model)
• Read a amp.(if machine is drawing high current or if breaker is
weak, breaker/fuse rated too low, or wrong fuse installed)
• Is the belt connected well?
• Is the winding of the motor continuous?
(Rotor winding, stator winding, generator)
• Is the motor protector normal?
• If above points are not found, the PCB assembly is out of order.
Replace it.
5
Blows fuses or trips
circuit breaker while
running(Gas Model)
• If the dryer is drawing more amperage than it is suppose to,
then the dryer is at fault. If the breaker is tripping or fuse is
blowing and the dryer is drawing the correct amperage, then
the problem is in the house electrical system.
• 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.
• Regulating thermostat trips easily or is open.
• Check Thermistor.
7
Will Not Dry
Gas Model
Poor Gas Ignition
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
failure of a component in this system will usually be indicated by one
of three symptoms:
6

TROUBLE SHOOTING
A WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before
servicing, unless testing requires power.
No Problem Recommended Checks/Procedures
8The igniter does not
glow
If the igniter does not heat up, remove power and using an
ohmmeter, check the following:
• No power from control(L1 supply)
• Open igniter while calling for heat
• Open flame sensor
• Open motor switch(Neutral supply)
9Igniter glows - No gas
ignition
If the igniter heats up but the main burner flame is not ignited,
remove power and using an ohmmeter, check the following:
• Open secondary coil
• Open holding coil
• Open wire harness
10 The gas is ignited but
the flame goes out
If a normal ignition takes place and after a short while the flame goes
out, check for the following:
• Poor venting
• Gas coils break down under a load.
• WeakHi-Limit
• Bad drum seals
11
Improper drying
clothes wrinkled
Rough texture long
dry time
• Lint filter is not clean.
• Restriction in exhaust.
• Outside exhaust hood damper door stuck closed.
Exhaust too long, too many elbows, flex ductwork installed.
Poor intake air available for the dryer.
Incorrect tumbler speed. Tumbler belt slipping.
Blower wheel broken, 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.
12 Noisy and/Or
Vibration
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
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 check for idler on squealing sound. Check for a
sticky or frayed belt.

TROUBLE SHOOTING
___________________ A 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 Q @ 25°C 77°F
(2P-Blue & Red wire)
• Thermostat 1 resistance < 1 Cl (White &
Yellow wire)
• Thermostat 3 resistance < 10 (Red & Black wire)
- If resistance is infinity, replace thermostat 3.
• Thermostat 2 resistance < 10 (Blue & Black wire)
- If resistance is infinity, replace thermostat 2.
• Heater resistance 10 O (Blue & Blue wire)
- If resistance is infinity, replace Heater.
• Measure resistance of the following terminal
1) Door switch : open
Terminal: "COM" - "NC" (1 -3) < 10
Terminal: "COM" - "NO" (1 -2): «> O
2) Door switch push: On
Terminal: "COM" - "NC" (1 -3 ):« o
Terminal: "COM" - "NO" (1 -2) < 1 Cl
• Belt Cut-off Switch
- Lever open: Resistance value < 10
- Lever push: Resistance value: °° O
BELT CUT-OFF SWITCH 125V, 15A
• Lamp resistance 80-100 O (Violet & gray)
• Motor (Electronic & GAS)
Contacts
Function 1M 2M 3M 5M 6M
Start
Run
• = Contact dosed
Centrifugal Switch (Motor)

TROUBLE SHOOTING
GAS MODEL
Radiant Sensorfl ORS)
Resistance value < 1 fi
If resistance is infinite, replace Radiant sensor
Igniter(IOID)
Resistance value 40-400 O
If resistance is infinite, replace Igniter
Gas Valve(25M01A)
Valve 1-2 : Resistance value 1.2Kfi
Valve 1-3 : Resistance value 0.5K fi
Valve 4-5 : Resistance value 1.2K fi
If resistance is infinity, replace Valve
Thermostat (60T21 Hi-Limit)230F-50F
Resistance value < 1 fi
If resistance is infinity, replace Thermostat
A WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before
servicing, unless testing requires power.

TROUBLE SHOOTING
___________________ A WARNING _____________________
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before
servicing, unless testing requires power.
1. AC Power Port - Motor Relay Switch - Heater Relay Switch
2. AC Power Off Detection
Sensor
3. Door Detection Sensor
Sensor Bars & temperature sensor check
Sensor Bars - Disconnect harness and test Pink
wire Pin 4 to Orange wire Pin 5.
Approx °° O without laundry
This mode is default mode of entering Special Test
Mode. Refer to page 3.
Cycling Thermistor - Disconnect harness and test
Blue wire Pin 2 to Red wire Pin 6.
Approx 10 KO at 25 °C/77 °F