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Whirlpool 27' Job Aid

27" electric and gas dryers
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See also: Instruction and Installation Manual
CONSUMER SERVICES TECHNICAL
L-63
EDUCATION GROUP PRESENTS
27"
ELECTRIC & GAS
DRYERS
JOB AID
Part No. 4322260
I

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  • Page 1 CONSUMER SERVICES TECHNICAL L-63 EDUCATION GROUP PRESENTS 27” ELECTRIC & GAS DRYERS JOB AID Part No. 4322260...

  • Page 2: Introduction

    GOALS AND OBJECTIVES The goal of this Job Aid is to provide detailed information that will enable the service technician to properly diagnose malfunctions and repair Whirlpool 27” electric or gas dryers. The objectives of the Job Aid are: The service technician will - •...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION ........................II TABLE OF CONTENTS ...................... III SECTION ONE GENERAL INFORMATION Electric Requirements ....................1 Exhaust Requirements for Electric and Gas Dryers ..........5 Gas Requirements for Gas Dryers ................6 Recessed and Closet Installation Instructions ............8 SECTION TWO THEORY OF OPERATION Controls and Cycles ........................9...
  • Page 4 SECTION FOUR TROUBLESHOOTING AND DIAGNOSIS Troubleshooting Guide ......................23 Electronic Dryer Control Testing .....................24 SECTION FIVE TECH TIPS Wiring Diagrams ........................25 Strip Circuits ..........................27 Model/Serial Number Plate Location ..................30 Model/Serial Number Designations ..................30 Product Specification and Warranty Information Source............30...

  • Page 6: Section One

    Section One GENERAL INFORMATION GENERAL INFORMATION GENERAL INFORMATION GENERAL INFORMATION GENERAL INFORMATION ELECTRICAL REQUIREMENTS Electrical Requirements for Gas Dryers Important: Observe all governing codes and ordinances. Electrical ground is required on this product. WARNING Electrical Shock Hazard Check with a qualified electrician if you are in doubt as to whether the appliance is properly grounded.

  • Page 7: Electrical Requirements For Electric Dryers

    Electrical Requirements for Electric Dryers Important: Observe all governing codes and ordinances. Electrical ground is required on this product. WARNING Electrical Shock Hazard Check with a qualified electrician if you are in doubt as to whether the appliance is properly grounded. Do Not modify the power supply cord plug. If it will not fit the outlet, have a proper outlet installed by a qualified electrician.

  • Page 8: Grounding Instructions

    the customer to contact a qualified electrician to assure that the electrical installation is adequate and is in conformance with National Electrical Code ANSI/NFPA 70-1987 (or the latest edition) and local codes and ordinances. Important: Allow slack in the line between the wall and the appliance so that it can be move if servicing is ever necessary.
  • Page 9 4. IF YOUR POWER SUPPLY CORD OR DIRECT WIRING HAS PLAIN WIRE ENDS, FOLLOW THESE STEPS: a. Strip outer covering back 3 inches from the end exposing the 3 wires. b. Strip the insulation back 1 inch from the end of each wire. Form the bare wire to “U” shaped hook.

  • Page 10: Exhaust Requirements For Electric And Gas Dryers

    Exhaust Requirements for Gas and Electric Dryers WARNING Fire Hazard Do Not use nonmetal, flexible duct. Do Not use metal duct smaller that four inches in diameter. Do Not use exhaust hoods with magnetic latches. Improper air supply for exhausting may result in a fire.

  • Page 11: Gas Requirements For Gas Dryers

    Extension beyond the enclosure will prevent lint and moisture buildup under the mobile home. Secure dryer: For mobile home use, gas dryers must be securely fastened to the floor. Whirlpool Kit No. 346764 is available at your local parts distributor or Whirlpool Service Center.
  • Page 12 A. This installation must conform with American National Standard, National Fuel Gas Code ANSI Z223.1 - 1984, and local codes and ordinances. B. Input ratings shown on the rating plate (serial tag) are for elevations up to 2,000 feet, ratings should be reduced at a rate of 4% for each 1,000 feet above sea level.

  • Page 13: Recessed And Closet Installation Instructions

    c. Door is closed. d. Controls are set in running or “On” position. e. Gas shut-off valve is open on supply lines. Recessed and Closet Installation Instructions WARNING WARNING Potential Fire Hazard The dryer must be exhausted outside. If dryer is installed in a closet, the dryer MUST be exhausted outside.

  • Page 14: Section Two

    SECTION TWO THEORY OF OPERATION THEORY OF OPERATION THEORY OF OPERATION THEORY OF OPERATION THEORY OF OPERATION CONSOLE Fig. 6 TIMER CONTROL Electronic Dry-Miser This cycle can be used for most loads. Drying time varies according to type of fabric, size of load and dryness setting.

  • Page 15: Electronic Dryer Control

    Fluff Air Cycle The Fluff Air Cycle provides up to 30 minutes of unheated drying time. CLEAN TOUCH CONTROL PAD The clean touch control pad provides push button control of the following operations: TEMPERATURE SELECTION - Four levels of temperature ranging from Extra Low to High. FINISH GUARD - Allows this option to be turned On or OFF.

  • Page 16: Heated Air Circulation

    The electronic control looks at the input from the moisture sensor to see if the clothes are wet or dry. The moisture sensor will show continuity (short) if the clothes are wet and show NO continuity (open) if the clothes are dry. If the clothes are wet, the Triac on the electronic control board will block power to the timer motor, and the timer motor will not advance.
  • Page 17 Side and Bottom Exhaust Venting Kit Side and Bottom Exhaust Venting Kits for Whirlpool 27” gas and electric dryer are available at your local parts distributor or Whirlpool Service Center. The kit contains all the materials necessary to vent the dryer out either side or through the bottom. (Fig. 10) Part No.

  • Page 18: Section Three

    SECTION THREE COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS CONSOLE CONTROL REPAIRS WARNING ELECTRIC SHOCK HAZARD Disconnect the electrical power before servicing any components. Failure to do so can result in death or electrical shock. Note : Potential floor damage. Slide dryer onto cardboard or hardboard before moving across floor.

  • Page 19: Removing The Timer

    Removing the Timer 1. Pull the timer knob off the timer assembly shaft. 2. Tip the console into the service position. 3. Disconnect the wiring harness connectors from the timer assembly terminals. 4. Remove the two (2) screws securing the timer assembly mounting bracket to the console. Removing the Clean Touch Switch Assembly Mounting “EARS”...

  • Page 20: Replacing The Drum Lamp

    5. Slide top across dryer so that rear is under back brackets and front fits into front clips. 6. Reinstall three dryer top screws. 7. Close console. 8. Reinstall the two console screws. Fig. 16 Replacing the Drum Lamp 1. Open dryer door. Remove the drum lamp cover screws. (Fig. 17) 2.

  • Page 21: Removing The Blower Wheel

    Replacing the Blower Wheel 1. Open dryer door and remove lint screen. (Fig. 20) Close the dryer door. Fig. 20 2. Remove two (2) screws from lint duct and remove the lint duct. 3. Remove two (2) screws from blower housing cover and remove blower housing cover. (Fig. 21) Fig.

  • Page 22: Replacing The Motor

    Replacing the Motor 1. Remove the blower housing. 2. Remove two screws mounting motor in place. (Fig. 25) 3. Reach under drum and push idler pulley to the left to release tension on the belt. Fig. 25 (Fig. 26) Remove belt from motor pulley. 4.

  • Page 23: Replacing The Heating Element

    Replacing the Heating Element (Electric Dryers) 1. Remove the screw from heat shield. (Fig. 31) Remove the wires to the heat element. 2. Remove the screw from side of heater box (Fig. 32) and slide the heat element out of dryer. 3.

  • Page 24: Removing The Dryer Door

    Removing the Dryer Door 1. Remove the toe panel. 2. Pull down and unhook and remove the left and right door springs. (Fig. 36) 3. Open dryer door. Remove the screws from each door hinge. (Fig. 37) Remove dryer door by sliding it off of hinges.

  • Page 25: Removing The Belt And Drum

    Removing the Belt and the Drum 1. Remove the front panel. 2. Reach underneath drum and behind motor to locate idler pulley. Push idler pulley to left to release drum belt tension. Remove the belt from the motor pulley. (Fig. 41) 3.

  • Page 26: Removing The Rear Bulkhead Assembly

    Removing the Rear Bulkhead Assembly 1. Remove the front panel. 2. Reach underneath drum to locate idler pulley. Push idler pulley to left to release drum belt tension. Remove belt from motor pulley. Remove the drum from dryer. 3. Remove heat source assembly (burner assembly and funnel or heat element and duct). 4.
  • Page 27 -- NOTES --...

  • Page 28: Section Four

    SECTION FOUR TROUBLESHOOTING and DIAGNOSIS TROUBLESHOOTING GUIDE CONDITION POSSIBLE CAUSE SOLUTION Dryer will not run. No power to unit. Check voltage supply. Door switch not making. Check door switch siring and continuity. Thermal fuse open. Check fuse continuity. Broken belt or belt switch. Check for broken belt or check belt switch for continuity.

  • Page 29: Electronic Dryer Control Testing

    “C” VERSION ELECTRONIC DRYER CONTROL Component Testing There is no reliable electrical check that can be made on the electronic control board. Do not attempt to replace any components on the electronic control board. The following tests will isolate problems with the electronic control board and other related components.

  • Page 30: Section Five

    SECTION FIVE TECH TIPS TECH TIPS TECH TIPS TECH TIPS TECH TIPS WIRING DIAGRAM Electric Dryer...
  • Page 31 WIRING DIAGRAM Gas Dryer...

  • Page 32: Strip Circuits

    TIMER SCHEDULE TIMER SCHEDULE LEGEND TIMER POSITION SWITCH AUTO- AUTO-SOFT/ COOL DOWN END OF TIMED- TIMED-SOFT/ GUARD = CLOSED CONTACTS REGULAR LOW HEAT & AIR DRY CYCLE REGULAR LOW HEAT INTERMITTENT 1 2 3 4 5 6 7 8 9 0 1 2 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 1 2 3 4 5 6 7 8 9 0 1 2...
  • Page 33 3. Temperature Control Circuit - Thermostat heater ENERGIZED 4. Electric Heater Element Circuit - Heater element ENERGIZED. 5. Gas Burner Circuit - Burner assembly ENERGIZED. 6. Push-To-Start Circuit - At moment of CONTACT...
  • Page 34 7. Buzzer Circuit - Timer contacts OPEN 8. Drum Lamp Circuit - Lamp LIT. 9. Timer Motor Circuit - Timed dry cycle. 10. Timer Motor Circuit - Automatic dry cycle.

  • Page 35: Model/Serial Number Plate Location

    Fig. 49 inside the door opening. (Fig. 49) Model/Serial Number Plate MODEL/SERIAL NUMBER DESIGNATIONS The model number for the Whirlpool brand 27” DRYER contain the following designations: Model Number Marketing Channel (if present) Product Group L = Laundry, Domestic E = Electric Dryer 240 Volt...
  • Page 36 CO RPO RATIO N...

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