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CLOTHES DRYER
Technical Information

CAUTION

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

DV338, DV448, DV438.

WARNING

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

dryer before servicing, unless testing requires power.

DC68-02365B-0_EN

•  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 (DV338, DV448, DV438) for detailed installation, operating, 

    testing, troubleshooting, and disassembly instructions.

Technical_information-02365B.ind1   1

2008-06-25   ¿ÀÈÄ 5:24:21

Summary of Contents for DV338 series

Page 1: ...nnect power to dryer before servicing unless testing requires power DC68 02365B 01_EN 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 DV338 DV448 DV438 for detailed installation operating testing troubleshooting and disassembly instructions Technical_information 02365B ind1 1 2008 06 25 ÀÈ...

Page 2: ...the dryer Loose or open wire terminals in Door sense circuit dF Invalid state for more than 256 milliseconds Check for Loose or open wire terminals in Door sense circuit bE Invalid state of key circuit short for 75secs Check for Display PCB key circuit short or not od Invalid Dry time in excess Dry time Check for Sensor bar Open Using Adjust time Up exces sively hE Invalid heating Temp in running ...

Page 3: ...al Test Mode Definition of Special Test Mode Dryer must be on before Service Mode can be entered Press Signal and Temp Keys for 3 seconds or until 3 beeps are heard The machine will now be in Service Mode Upon entry into Service Mode the Sensor Bar Touch Data will be shown Default Special Test Mode How to Enter To enter Special Test Mode press Signal and Temp Keys for 3 seconds for 3 seconds or un...

Page 4: ...unt mode Cycle number executed will display How to Enter To enter Special Test Mode press While in Service Mode pressing the Signal key for 3 seconds or until the control beep Software Version Mode Definition of Software Version Mode While in Service Mode pressing the Temp key will put the dryer into the software version mode How to Enter To enter Special Test Mode press Temp Key until the control...

Page 5: ...ow 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...

Page 6: ... 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 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 am perages above this then the house wiring fuse box or circuit breaker is suspected to be at fault Igniter harness loose and shorted to...

Page 7: ...Temps Weak Hi Limit Poor venting 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 impeller bound check for foreign material in...

Page 8: ...0 Ω Blue Blue wire If resistance is infinity replace Heater Lamp resistance 80 100 Ω Violet gray Function 1M 2M 3M 5M 6M Start Run Contacts Contact closed Measure resistance of the following terminal 1 Door switch knob open Terminal COM NC 1 3 Ω Terminal COM NO 1 2 1Ω 2 Door switch push On Terminal COM NC 1 3 Ω Terminal COM NO 1 2 1Ω Centrifugal Switch Motor 2 88Ω between Pin 3 and 4 3 5Ω between ...

Page 9: ...finite replace Radiant sensor Gas Valve 25M01A Valve 1 2 Resistance value 1 2K Ω Valve 1 3 Resistance value 0 5K Ω Valve 4 5 Resistance value 1 2K Ω If resistance is infinity replace Valve Igniter 101D Resistance value 40 400 Ω If resistance is infinite replace Igniter Thermostat 60T21 Hi Limit 230F 50F Resistance value 1 Ω If resistance is infinity replace Thermostat Technical_information 02365B ...

Page 10: ...r 3 Door Detection Sensor RY5 Motor Relay Switch RY6 Heater Relay Switch 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 Thermostat Disconnect harness and test Blue wire Pin 2 to Red wire Pin 6 Approx 10 KΩ at 25 C 77 F Technical_information 02365B ind10 10 2008 06 25 ...

Page 11: ...NG If converting from a 4 wire electrical system to a 3 wire the ground strap must be reconnected to the terminal block support to ground the dryer frame to the neutral conductor 4 WIRE SYSTEM CONNECTIONS 1 Remove center terminal block screw 2 Connect ground wire green or unwrapped of power cord to external ground conductor screw 3 Connect neutral wire white or center wire of power cord and applia...

Page 12: ...oid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power WIRING DIAGRAM WIRING DIAGRAM Technical_information 02365B ind12 12 2008 06 25 ÀÈÄ 5 24 31 ...

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