Whirlpool APARTMENT MAINTENANCE SERIES Service Manual
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Whirlpool APARTMENT MAINTENANCE SERIES Service Manual

Whirlpool APARTMENT MAINTENANCE SERIES Service Manual

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CONSUMER SERVICES TECHNICAL
AM-5
EDUCATION GROUP PRESENTS
APARTMENT MAINTENANCE SERIES
LAUNDRY
PRODUCTS
JOB AID
Part No. 4322616
I

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Summary of Contents for Whirlpool APARTMENT MAINTENANCE SERIES

  • Page 1 CONSUMER SERVICES TECHNICAL AM-5 EDUCATION GROUP PRESENTS APARTMENT MAINTENANCE SERIES LAUNDRY PRODUCTS JOB AID Part No. 4322616...

  • Page 2: Introduction

    INTRODUCTION This Job Aid, “AM-5, Apartment Maintenance Series- Laundry Products,” (Part No. 4322616) provides specific information for the installation, service and repair of Whirlpool Laundry products. “AM-5, Apartment Maintenance Series- Laundry Products,” has been compiled to provide the most recent information on design, features, troubleshooting, service and repair procedures.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION .................. II TABLE OF CONTENTS..............III SAFETY .................... VIII SECTION ONE - DIRECT DRIVE WASHER Part A INSTALLATION CONSIDERATIONS ........2 Part B THEORY OF OPERATION THEORY OF OPERATION THEORY OF OPERATION THEORY OF OPERATION THEORY OF OPERATION ......................
  • Page 4 SECTION TWO - 22” COMPACT WASHER Part A THEORY OF OPERATION THEORY OF OPERATION ......................THEORY OF OPERATION THEORY OF OPERATION THEORY OF OPERATION ................................39 General Information ..................39 Cycle Functions ..................... 42 Part B COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS ..............
  • Page 5 SECTION THREE - 29” AND COMPACT GAS AND ELECTRIC DRYERS Part A THEORY OF OPERATION ............71 Part B COMPONENT ACCESS COMPONENT ACCESS ........................ COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS ..................................73...
  • Page 6 SECTION FOUR - 27” GAS AND ELECTRIC DRYERS Part A THEORY OF OPERATION ............ 81 Part B COMPONENT ACCESS COMPONENT ACCESS ........................ COMPONENT ACCESS COMPONENT ACCESS ............COMPONENT ACCESS ........................ 85 Part C TROUBLESHOOTING AND DIAGNOSIS TROUBLESHOOTING AND DIAGNOSIS .........
  • Page 7 SECTION FIVE - 24” and 27” THIN TWIN Part A THEORY OF OPERATION ..........105 Part B COMPONENT ACCESS (24”) COMPONENT ACCESS (24”) ..................COMPONENT ACCESS (24”) COMPONENT ACCESS (24”) ........... COMPONENT ACCESS (24”) ..................107 Washer Access .................... 107 Dryer Access ....................

  • Page 8: Safety

    SAFETY YOUR SAFETY AND THE SAFETY OF OTHERS IS IMPORTANT Safety messages have been provided in this manual where performing certain procedures may cause exposure to hazards that can kill or hurt you. This is the safety alert symbol. All safety messages will be preceded by the safety alert symbol and the word “DANGER”...
  • Page 9 DIRECT DIRECT DIRECT DIRECT DIRECT DRIVE DRIVE DRIVE DRIVE DRIVE WASHERS WASHERS WASHERS WASHERS WASHERS...

  • Page 10: Installation Considerations

    Section One - Part A INSTALLATION CONSIDERATIONS 1. Carefully follow the installation instructions supplied with the washer for information related to your product. KEY POINTS TO REMEMBER: 2. Remove the shipping strap as follows: a. Carefully read, then remove the yellow label securing the power supply cord to the back of the washer.
  • Page 11 3. Screw the lock nut down to within 1/2 inch of the base of the leg. (Fig. 1-5) Fig. 1-5 4. Tilt the washer forward off the floor and set back down to adjust the rear self-leveling legs. 5. Check the washer for level, both side-to-side and front-to-back. Adjust the front legs as necessary.
  • Page 12 NOTE: Laundry Drain Requirements: Laundry Tub or Utility Sink - 1. Laundry tub or utility sink should have a minimum capacity of 20 gallons. 2. Top of tub or sink must be a minimum of 34” and not more than 72” from the bottom of the washer.

  • Page 13: Theory Of Operation Theory Of Operation

    Section One - Part B THEORY OF OPERATION All washers perform essentially the same four functions. They fill with water, agitate, drain the water and spin the water out of the clothing. FILL Water Level Water Switch Temperature Switch Timer Water Inlet Water Fill Valve...
  • Page 14 1. Before the washer can fill, the customer makes selections that: • Control the length of the wash cycle by turning the timer control knob • Control the temperature of the wash and rinse water by setting the water temperature switch. The water temperature switch is identified by the dotted box in Fig.
  • Page 15 The water level switch is set to move from the EMPTY position to the FULL position depend- ing on how much tension is set on the switch diaphragm. 3. When the customer pulls the timer knob out, Typical Water voltage is supplied to the hot and/or cold wa- Level Switch ter inlet solenoids.

  • Page 16: Agitation

    AGITATION Water Level Switch Timer Pump Gearcase Drive Motor Fig. 2-8...
  • Page 17 1. Once there is power to the timer motor, the timer will start to advance. The drive motor will also begin to turn counterclockwise in the agitation direction. The direction of current through the dirve motor start winding will determine the direction the drive motor runs. In the agitation mode, con- tacts 7 are closed, causing current to flow in the start winding opposite the flow in the run winding.

  • Page 18: Drain

    DRAIN Water Level Switch Timer Pump Gearcase Drive Motor Fig. 2-12...
  • Page 19 1. The timer advances to the next step in the process, which is the drain cycle. This time, contacts 14 in the timer are closed, energizing the drive motor to run in a clockwise direction. The current flow in the start winding is the same as that in the run winding. Fig.

  • Page 20: Spin

    SPIN Water Level Switch Timer Pump Clutch (Spin) Drive Motor Gearcase Fig. 2-15...
  • Page 21 1. After the motor restarts, in the same clockwise direction, the transmission is reset for the spin mode and the spin pinion begins to turn. 2. A clutch housing is mounted directly to the transmission spin pinion and begins to turn as well. 3.
  • Page 22 -- NOTES --...

  • Page 23: Component Access Component Access Component Access

    Section One - Part C COMPONENT ACCESS COMPONENT LOCATION WATER PUSH-BUTTON LEVEL SWITCH SWITCH TIMER PRESSURE DOME TUBE FILL VALVE FABRIC LID SWITCH SOFTENER DISPENSER MANUAL LINT FILTER (if equipped) BLEACH DISPENSER HOSE AGITATOR BASKET FILTER VANES (UNDER AGITATOR MAGICCLEAN PLATE) LINT FILTER (if equipped)

  • Page 24: Accessing Component In The Console

    WARNING ELECTRIC SHOCK HAZARD Disconnect the washer from the electrical power outlet before performing any service or repairs. Replace all panels before operating. Failure to follow these instructions could result in death or electrical shock. ACCESSING COMPONENTS IN THE CONSOLE A number of critical components can be accessed from inside the control console.
  • Page 25 Removing the Timer There are two types of timers. One can be identified by a plastic body. The other has a metal body. Plastic Body NOTE: DO NOT ATTEMPT TO REMOVE THE TIMER KNOB BY PULLING FROM THE FRONT. Doing so will damage the split shaft and require replacing the entire timer assembly.
  • Page 26 Metal Body 1. To remove the timer knob, push the knob in from the front and unscrew it from the timer shaft. (Fig. 3-5) 2. Slide the timer dial from the timer hub. 3. Remove the two (2) Hex-head screws securing the timer assembly to the console mounting plate.

  • Page 27: Accessing Component Inside The Washer Cabinet

    ACCESSING COMPONENTS INSIDE THE WASHER CABINET Components inside the washer cabinet can be accessed by completely removing the outer cabinet as one unit. Refer to Figure 3-8 for the following instructions. 1. Remove the console mounting screws and tilt the console into the service position. 2.
  • Page 28 5. The rear panel can be tilted back for additional access to components at rear of machine by twisting the rear panel support 90°, and then tilting the rear panel back. (Fig. 3-11) REAR PANEL SUPPORT Fig. 3-11 REASSEMBLY NOTES When reassembling the cabinet make sure the following steps are taken: 1.
  • Page 29 3. The Surgilator Agitator is removed by first Agitator Cap pulling off the agitator cap and inner cap. Inner Cap Then unscrew the 7/16” bolt found un- Clutch der the cap and pull straight up on the two- Clutch Dogs piece agitator assembly.
  • Page 30 The motor of the Whirlpool Direct Drive Washer is a reversing type, running in one direction for agitation and in the other direction for drain and spin. The motor is held in place by two retaining clips and is coupled to the gearcase with two three-prong couplers and an isolation coupler.
  • Page 31 SUSPENSION PLATE PADS SUSPENSION PLATE BASE ASSEMBLY PADS BASE ASSEMBLY Fig. 3-22 SERVICING THE GEARCASE 1. Remove the outer cabinet. 2. Remove the agitator. Fig. 3-23 3. Remove the pump and motor assemblies. 4. Carefully lay the washer on its back. 5.
  • Page 32 3. To remove the entire clutch assembly, begin Thrust Washer by removing the spin tube thrust washer up and off the agitator shaft and then remove the support ring. (Fig. 3-25) Support Fig. 3-25 Ring 4. Remove the retainer ring and lift the clutch Retainer hub up and off the spin pinion.

  • Page 33: Diagnosis And Troubleshooting Diagnosis And Troubleshooting

    Section One - Part D DIAGNOSIS AND TROUBLESHOOTING DIAGNOSIS AND TROUBLESHOOTING CHART POSSIBLE CAUSE ACTION PROBLEM No/low voltage to machine Check supply voltage (100-130 volts) 1. MOTOR WILL NOT Thermal overload tripped Check Overload Timer switches Check continuity NOTE: In diagnosing this problem, start the washer.
  • Page 34 ACTION POSSIBLE CAUSE PROBLEM 7. KNOCK DURING Agitator dogs worn Replace agitator dogs AGITATE. Excessive clearance on pinion Replace gearcase thrust or main drive gear 8. TRIES TO AGITATE Shift actuator or cam damaged Replace gearcase DURING SPIN. 9. WATER DOES NOT Clogged drain Remove obstruction DRAIN FROM...

  • Page 35: Component Testing

    ACTION POSSIBLE CAUSE PROBLEM 13. CLOTHING Excessive use of bleach Instruct customer DAMAGE Overloading of machine Instruct customer Foreign objects Remove Water level too low Increase water level Agitates during spin See problem 8 Agitator surface rough Replace agitator Basket surface rough Replace basket 14.

  • Page 36: Drive Motor

    CENTRIFUGAL SWITCH To test the centrifugal switch, remove the pump and disconnect the motor harness block from the centrifugal switch. Remove the switch from the motor, and remove the internal motor wires from the centrifugal switch. Set the meter to the R X 1 scale and test the switch in the “start” position by pushing up on the switch actuator.
  • Page 37 Check the high-speed windings by testing between the blue and white wires. A resistance reading between 3/4 ohm and 2 ohms should be present. Check the low-speed winding by testing between the violet and the white wire. A resistance reading between 1 1/2 and 3 ohms should be present.

  • Page 38: Water Level Switch

    WATER LEVEL SWITCH To test the water level switch, remove the wires from the water level switch. With the tub empty, there should be continuity from violet to pink and no continuity between violet and tan. With the tub full, there should be continuity from violet to tan and no continuity from violet to pink. TIMER To test the timer contacts, select the contacts to be tested;...
  • Page 39 CONFIRMATION OF LEARNING EXERCISE Test the following components to determine if they are good or bad. Verify with your instructor the results of your testing. 1. Timer bypass contacts (2) 2. Motor centrifugal switch 3. Start capacitor 4. Motor windings...

  • Page 40: Wiring Diagram

    WIRING DIAGRAM (Typical)

  • Page 41: Cycle Chart

    CYCLE CHART (Typical)

  • Page 42: Model/Serial Number Designators

    W = WHITE ENGINEERING CHANGE (NUMERIC) 0 = ORIGINAL RELEASE 1 = FIRST CHANGE SERIAL NUMBER DESIGNATION The serial number for the Whirlpool brand Direct Drive Washer contains the following designations: 100003 Serial Number Manufacture Location C = Clyde, Ohio...

  • Page 43: Reshipping Kit And Instructions

    ADDITIONAL LITERATURE SOURCES Additional literature covering the complete mechanical components of Whirlpool Washers and Dryers is available from: Whirlpool Corporation Literature Department 1900 Whirlpool Drive LaPorte, In 46350-2585 1-800-851-4605 Direct Drive Washers (Job Aid) Part No. LIT787930 Direct Drive Washers (Video) Part No.
  • Page 44 -- NOTES --...
  • Page 45 22” COMPACT WASHER...

  • Page 47: Theory Of Operation Theory Of Operation

    Section Two - Part A THEORY OF OPERATION GENERAL INFORMATION Start Up Whenever the washer power cord is plugged into an electrical supply, the electronic control will be energized. At this time, the microcontroller will be permanently on-line waiting for user input. Fig.

  • Page 48: Super Wash

    S.I.S. (Sub-Interval Spin) Sub-Interval Spin (S.I.S.) is a series of short spin times initiated during the first 120 seconds of the cotton/regular spin cycles and throughout all of the permanent press and delicate spin cycles. The S.I.S. is designed to help the washer break up soap suds for easier water removal during drain. (Table 1) Table 1 Operation...
  • Page 49 Water Level Control The load setting or water level control is determined through the use of an electromechanical pressure switch which provides a 120VAC signal to the microcontroller. The microcontroller reads the signal from the water level pressure switch during fill, agitate or drain functions only. Water level changes during any other function will not be initiated by the control system.

  • Page 50: Cycle Functions

    CYCLE FUNCTIONS First Step With the Cycle Selector Knob in the OFF position, turn the Water Level and Wash/Rinse Water Tem- perature knobs to the desired settings. Fill Cycle NOTE: See FILL Strip Circuit on page 67. Turn the Cycle Selector Knob to the desired wash cycle. The washer will begin to fill. When the water has reached the predetermined level the water level switch will break power to the water fill valves and the fill valves will turn off.
  • Page 51 Spin Cycle NOTE: See SPIN Strip Circuit on page 68. The drain pump and brake solenoid are energized at the beginning of the Spin Cycle. The energized brake solenoid releases the brake and engages the splutch. For the first 120 seconds of the Spin Cycle the electronic control board sequentially cycles the drive motor on and off to allow the basket to slowly build up speed.
  • Page 52 The Splutch Assembly During Wash/Agitate When a Wash/Agitate cycle occurs, the agitator which is connected to the shaft inside the spin tube, is rotated by the drive motor and the splutch pulley. At this time the brake solenoid is not energized. This leaves the slider disengaged from the pulley and the brake band in tight against the rotor.

  • Page 53: Component Access Component Access Component Access

    Section Two - Part B COMPONENT ACCESS WASHER TOP COMPONENTS Washer Top Removal Refer to Figures 6 and 7 for this procedure. NOTE: Empty the washer of all clothes and water. Drain hose should be emptied into a bucket or drain. Remove control knobs.
  • Page 54 Washer Top Replacement Refer to Figures 6, 7 and 8 for this procedure. Lift the rear edge of the top and place slot of steel mounting channel over the plastic spacers on the top front lip of the washer cabinet. Take care to prevent scratching the top front edge of the cabinet.
  • Page 55 Route the three water level switch wires around the circuit board mounting post. Install the five circuit board mounting screws. Push the connectors onto the correct terminals on the water level switch. (Tan to “T”, Pink to “P”, Violet to “V”.) Slide both the large and small connector blocks into their mounting slots.
  • Page 56 Water Level Switch Removal Refer to Figure 10 for these procedures. 1. Remove washer top. 2. Remove the three control pan screws. Turn the control pan over and lay it to one side. 3. Pull the upper water level tube from the nipple on the water level switch. Do not disconnect the tube from the pan nipple.

  • Page 57: Cabinet Components

    CABINET COMPONENTS Water Inlet Components Removal Refer to Figures 11 and 12 for these procedures. 1. Remove the washer top. 2. Remove the hose clamp from each end of the water inlet hose. The hose can be removed from the cabinet by slipping the two wire ties from their holes in the cabinet back. 3.
  • Page 58 Agitator Replacement Refer to Figure 13 for these procedures. 1. Open the lid of the washer. 2. Loosen the hex head screw in the agitator access hole. DO NOT REMOVE THIS SCREW. AGITATOR 3. Pull the agitator off the splined agitator shaft. 4.
  • Page 59 Basket Replacement Refer to Figures 14 and 15 for these procedures. 1. If a new basket is being installed, remove the drive hub from the old basket and install it on the new one. 2. Lift the basket into the tub and carefully slide it over the spin tube. Rotate the basket until the locator ears drop into the slots in the drive hub.
  • Page 60 Capacitor Replacement Refer to Figure 18 for these procedures. WARNING ELECTRICAL SHOCK HAZARD •Disconnect the washer's power supply cord from the household power supply before servicing the capacitor. •The capacitor is capable of storing voltage that could be lethal. Do not touch the bare capacitor terminals.
  • Page 61 1. Disconnect the water and drain hoses from the washer. 2. Lay the washer on its front on a soft surface to protect the cabinet finish. 3. Remove the end of the brake arm spring from the slot in the brake arm assembly. 4.
  • Page 62 Splutch Assembly Removal Refer to Figure 22 for these procedures. 1. Disconnect the water and drain hoses from the washer. 2. Lay the washer on its front on a soft surface to Splutch Pulley protect the cabinet finish. 3. Remove the nuts securing the plastic motor pulley shield and remove the shield.
  • Page 63 Motor Replacement Refer to Figure 24 for these procedures. 1. Remove the nuts securing the plastic motor shield from the motor mounting bolts. 2. Loosen the motor mounting bolts and slide the motor Motor Mounting toward the center of the washer to loosen the drive Bolts belt.
  • Page 64 Servicing the Drain Pump Refer to Figure 27 for these procedures. NOTE: There is an overload inside the pump that resets itself after approximately 20 minutes. 1. Lay the washer on its front on a soft surface to protect the cabinet finish. 2.
  • Page 65 Servicing the Splutch Assembly Refer to Figure 28 for these procedures. NOTE: The splutch must be reassembled in the order described below. Failure to do so may result in a malfunction where the agitator spins at a high rate of speed and the basket remains stationary. 1.
  • Page 66 -- NOTES --...

  • Page 67: Troubleshooting And Diagnosis

    Section Two - Part C TROUBLESHOOTING AND DIAGNOSTICS TROUBLESHOOTING NOTE: Check the Tech Sheet provided with the washer form the most recent troubleshooting information. IMPORTANT: Possible Cause/Test MUST be performed in the sequence shown for each problem. PROBLEM POSSIBLE CAUSE/TEST WON'T POWER UP 1.
  • Page 68 PROBLEM POSSIBLE CAUSE/TEST WON'T SPIN 1. Perform Actuator and Switch Test for Spin. (Verify lid is closed) 2. Check for power on 120V between 9-pin connector and ground. 3. Verify Water Level switch is reset by disconnecting the hose NOTE: to it.

  • Page 69: Diagnostic Test Program

    DIAGNOSTIC TEST PROGRAM The Diagnostic Test Program is designed to be an aid for authorized service technicians to objectively test the washer’s water fill valves, drain pump and the clutch/brake solenoid, drive motor, water level sensor, lid switch, LEDs and rotary switches. There are four tests in the program all accessed from the control panel by following a specified entry sequence.
  • Page 70 Actuator and Switch Test (Set TEMP SELECT: Hot/Cold - Initiate Entry Sequence) (Preferred Service Test) The Actuator and Switch Test is designed to detect malfunctions in the transmission, water inlet valves, pump, solenoid and clutch, and the lid switch. Each function is tested separately by turning the TEMPERATURE SELECT switch as indicated in Table 8 .
  • Page 71 Selector Switch Tests (Set TEMP SELECT: Warm/Warm - Initiate Entry Sequence) (Only on 4-temperature models) The Selector Switch Tests have been designed to troubleshoot the rotary switches. During this test every position of each rotary switch is read and decoded by the microcontroller. The CYCLE/STATUS indicator LEDs display test results.
  • Page 72 The rotary switches can also be tested by using an ohmmeter. Both CYCLE SELECT and TEMP SELECT switches are low voltage switches and should be removed before an ohmmeter is used. Fig. 32 SELECTOR DESCRIPTION CYCLE & TEMPERATURE SELECTOR SWITCH LOGIC # of Positions Usable Position Position No./Shaft Flat Location Clockwise...

  • Page 73: Tech Tips

    Section Two - Part D TECH TIPS WIRING DIAGRAM...

  • Page 74: Control Sequence Chart

    CONTROL SEQUENCE CHART CONNECTION FUNCTI O N WIRE L E D LOCATION INDICATION WIRE COLOR W B U R B K Y Y/RB/R MACHINE CYCLE FUNCTION FILL WARM/HOT/COLD FILL AGITATE HI FILL AGITATE HI DRAIN WASH S. I. S. SPIN SUPER WASH P 2 FILL COLD/WARM RINSE...

  • Page 75: Strip Circuits

    STRIP CIRCUITS FILL AGITATE...
  • Page 76 STRIP CIRCUITS DRAIN SPIN...
  • Page 77 29” COMPACT GAS AND ELECTRIC DRYERS...
  • Page 79 Section Three - Part A THEORY OF OPERATION THEORY OF DRYING To understand how a dryer can dry laundry, it is necessary to understand how the process of drying, or evaporation, can be accelerated. The goal of drying is to remove the water that has saturated the laundry during washing. During the SPIN CYCLE of the washer, much of the water is extracted while it is still in its liquid form.
  • Page 80 MECHANICAL SYSTEMS TO ACCELERATE DRYING The mechanical systems in a dryer control these same three conditions to accelerate the evaporation of liquid water remaining in laundry. Within the dryer drum, the dryer: A) Applies Heat to the Liquid Water B) Provides Movement of Air over the Water C) Increases the Surface Exposure of the Water Efficient drying of the laundry is the result.
  • Page 81 Section Three - Part B COMPONENT ACCESS WARNING ELECTRIC SHOCK HAZARD Disconnect the electrical power before servicing any components. Failure to do so can result in death or electrical shock. Removing the Console Remove the two screws at the base of the console. (Fig. 3-5) Grab console on both sides.
  • Page 82 Removing the Push to Start Switch Pull the knob off the Push-to-Start switch shaft. Tip the console into the service position. Disconnect the wiring harness leads from the Push-to-Start switch terminals. Remove the two (2) screws securing the Push-to-Start switch to the console and remove the switch.
  • Page 83 Fig. 3-10 Drum DRUM SUPPORT ROLLER To remove the drum: Release the belt from the idler pulley. (Fig. 3-10) Lift the drum through the cutouts in the front IDLER ASSEMBLY flange of the side panels. The rear of the drum is open and butts against the bulkhead.
  • Page 84 Motor The motor is a double-shaft, single-speed, one third horsepower AC motor with a counterclockwise rotation. The front shaft of the motor drives a pulley which drives the belt and drum. The rear shaft is threaded and screws into the blower wheel hub. To remove the motor: Disconnect the wiring harness plug from the motor assembly.
  • Page 85 Servicing Components on the Rear of the Bulkhead There are two panels on the back of the dryer that allow access to components at the rear of the bulkhead. The smaller panel covers the electrical connections for the dryer. On Gas Dryers the three prong grounded 120VAC power cord is connected at this location. On Electric Dryers the 240VAC terminal block is located under the small access panel.
  • Page 86 -- NOTES --...
  • Page 87 27” GAS AND ELECTRIC DRYERS...

  • Page 89: Timed Dry Cycle

    Section Four - Part A THEORY OF OPERATION CONSOLE Fig. 4-1 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. • Set the Cycle Selector Control to the desired dryness. •...

  • Page 90: Fluff Air Cycle

    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 91 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 92 Switch 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.
  • Page 93 Section Four - Part B 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 94 Removing the Timer Pull the timer knob off the timer assembly shaft. Tip the console into the service position. Disconnect the wiring harness connectors from the timer assembly terminals. Remove the two (2) screws securing the timer assembly mounting bracket to the console. Removing the Clean Touch Switch Assembly Mounting “EARS”...
  • Page 95 Slide top across dryer so that rear is under back brackets and front fits into front clips. Reinstall three dryer top screws. Close console. Reinstall the two console screws. Fig. 4-12 Replacing the Drum Lamp Open dryer door. Remove the drum lamp cover screws. (Fig. 4-13) Lift and slide off the drum lamp cover.
  • Page 96 Replacing the Blower Wheel Open dryer door and remove lint screen. (Fig. 4-16) Close the dryer door. Fig. 4-16 Remove two (2) screws from lint duct and remove the lint duct. Remove two (2) screws from blower housing cover and remove blower housing cover. (Fig.
  • Page 97 Replacing the Motor Remove the blower housing. Remove two screws mounting motor in place. (Fig. 4-21) Reach under drum and push idler pulley to the left to release tension on the belt. Fig. 4-21 (Fig. 4-22) Remove belt from motor pulley. Slide motor to right, out of slots, and pull forward out of dryer.
  • Page 98 Replacing the Heating Element (Electric Dryers) Remove the screw from heat shield. (Fig. 4-27) Remove the wires to the heat element. Remove the screw from side of heater box (Fig. 4-28) and slide the heat element out of dryer. Slide new heat element into dryer and reattach screw on side of heater box.
  • Page 99 Removing the Dryer Door Remove the toe panel. Pull down and unhook and remove the left and right door springs. (Fig. 4-32) Open dryer door. Remove the screws from each door hinge. (Fig. 4-33) Remove dryer door by sliding it off of hinges. Slide new door onto hinges.
  • Page 100 Removing the Belt and the Drum Remove the front panel. 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. 4-37) Remove the drum and belt from the cabinet. (Fig. 4-38) Fig.
  • Page 101 Removing the Rear Bulkhead Assembly Remove the front panel. 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. Remove heat source assembly (burner assembly and funnel or heat element and duct). Move dryer so you can easily remove back of dryer.
  • Page 102 -- NOTES --...

  • Page 103: Troubleshooting Guide

    Section Four - Part C TROUBLESHOOTING and DIAGNOSIS TROUBLESHOOTING and DIAGNOSIS TROUBLESHOOTING and DIAGNOSIS TROUBLESHOOTING and DIAGNOSIS 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 continuity.
  • Page 104 “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 105: Wiring Diagrams

    Section Four - Part D TECH TIPS WIRING DIAGRAM Electric Dryer...
  • Page 106 WIRING DIAGRAM Gas Dryer...
  • Page 107 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 INTERMIT- 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 108 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 - Relay Coil ENERGIZED...
  • Page 109 7.Buzzer Circuit - Timer contacts T-W OPEN 8.Drum Lamp Circuit - Lamp LIT. 9.Timer Motor Circuit - Timed dry cycle. 10.Timer Motor Circuit - Automatic dry cycle.

  • Page 110: Model/Serial Number Plate Location

    Fig. 4-45 inside the door opening. (Fig. 4-45) 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 111 27” THIN TWIN...
  • Page 113 Section Five - Part A THEORY OF OPERATION Washer Controls TO SET - PUSH & TURN CLOCKWISE PULL TO START PUSH TO STOP PERM PRESS HEAVY DUTY WATER TEMP WATER LEVEL REGULAR GENTLE SHORT SHORT WARM MEDIUM WARM PAUSE WARM COLD REGULAR MED LOW...
  • Page 114 Following agitation the water will drain from the tub. No agitation occurs. The washer will spin while clean water is sprayed into the basket. There are two (2) 15 second clean water sprays during the final spin. Temperature Selector The temperature Selector allows for four (4) different water temperature settings for the wash and rinse cycles.
  • Page 115 Section Five - Part B COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS 24” ThinTwin WARNING Electrical Shock Hazard Disconnect electric power from appliance before servicing. Replace all panels before operating. Failure to do so could result in death or electrical shock. Accessing the Control Panel The control panel can be tilted down to the service position.
  • Page 116 Remove the two screws located behind the washer top. (Fig. 5-7) Screws Fig. 5-7 Pull the washer top forward to disengage the top locks. (Fig. 5-8) Disconnect the washer lid switch harness (Fig. 5-8, Inset) . Lift the washer top off the unit. Inset Lid Switch Harness...
  • Page 117 Many of the washer components can now be accessed. (Fig. 5-10) Fig. 5-10 To remove the entire washer assembly from the unit, first remove the two bolts securing the washer base to the washer/ Bolts dryer base. (Fig. 5-11) Lift up on the front of the washer base and pull it forward about 6 inches.
  • Page 118 24” ThinTwin Suspension System Tub Support Counterbalance Spring Suspension Strut/Spring Assembly Suspension Strut/Spring Assembly Base Fig. 5-14...
  • Page 119 COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS COMPONENT ACCESS 27” ThinTwin WARNING Electrical Shock Hazard Disconnect electric power from appliance before servicing. Replace all panels before operating. Failure to do so could result in death or electrical shock. Washer Access Front Panel Removal Remove the Transition Panel by removing the three (3) retaining screws.
  • Page 120 Washer Mechanism Removal Remove the two (2) ½” washer retaining bolts. (Fig. 5-18) Fig. 5-18 Retaining Bolts Remove the Motor Wiring and Wiring Harness Clip. (Fig. 5-19) Fig. 5-19 Motor Wiring Harness Remove the Drain Hose from the retainer (Fig. 5-20) Drain Hose Retainer...
  • Page 121 5.Lift and pull the washer assembly forward out of the cabinet. From this position it is possible to service all the washer components, which are similar to those used in other Whirlpool direct drive washers. 6.When reinstalling the washer mechanism, it is important to insure that the base restraints are properly positioned and that the wiring harness, drain hose, vacuum break, and pressure hose are properly installed and positioned.
  • Page 122 Dryer Toe Panel Access Remove the Transition Panel by removing the three (3) retaining screws. Using a putty knife, release the two (2) retaining clips and remove the toe panel. (Fig. 5-24) Fig. 5-24 Blower Heat Gas Burner Drive Assembly Element Assembly Motor...
  • Page 123 Remove the top two (2) retaining screws. Screw Screw Remove the bottom two (2) screws. Remove the Lint Screen. Remove the three (3) Dryer Lint Duct assembly retaining screws and remove the assembly. (Fig. 5-28) Remove the four (4) heater element shield Screws screws.
  • Page 124 Motor Wiring Remove the Blower Housing. Remove the Drive Belt. Remove the Motor Wiring. (Fig. 5-30) Remove the wiring to the broken belt switch. Remove four (4) motor bracket retaining screws and remove the motor. Fig. 5-30 NOTE: This dryer has a broken belt switch which interrupts power to the drive motor when the drive belt breaks.
  • Page 125 Dryer Belt Replacement Remove the Dryer Toe Panel. Drum Remove the Lint Filter and the Lint Duct Assembly. Remove the Blower Assembly. Idler Pulley Remove the Dryer Front Panel. A new Drive Belt can now be looped over the Dryer Motor Pulley Drum.
  • Page 126 -- NOTES --...
  • Page 127 Section Five - Part C TECHNICAL TIPS WASHER TIMER SCHEDULES 10 13 5H 5 14 7 7 14 11 12 2 10A L.S. 10B 120 SECONDS PER STEP BK-W BK-W WIRING DIAGRAM LEGEND MACHINE FUNCTION FILL-AGITATE HI FILL & WASH TIMER SWITCH SUB-INTERVAL FILL &...
  • Page 128 Wiring Diagram - Electric Dryer Models 240 VOLTS 120 VOLTS PULL-ON/ PUSH-OFF TIMER KNOB SWITCH LID SWITCH TM-T TM-W CENTRIFUGAL CENTRIFULGAL DRIVE SWITCH TIMER MOTOR MOTOR GY-Y 1900 - 2900 Ω HIGH CAPACITOR START W-BK FULL EMPTY WATER W-BK LEVEL BR-R SWITCH HOT VALVE...
  • Page 129 Wiring Diagram - Gas Dryer Models 120 VOLTS PULL-ON/ PUSH-OFF TIMER KNOB SWITCH LID SWITCH TM-T TM-W CENTRIFULGAL CENTRIFUGAL DRIVE TIMER MOTOR SWITCH MOTOR GY-Y 1900 - 2900 Ω HIGH CAPACITOR START W-BK FULL EMPTY WATER LEVEL W-BK BR-R SWITCH HOT VALVE WC HC CC WC...
  • Page 130 Q = White on White Z = Almond on Almond Engineering Changes (Numeric) The serial number for the Whirlpool brand Thin Twin contains the following desig- n a t i o n s : 0 3 1 0 0 0 0 3...
  • Page 132 CORPORATION...

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