Whirlpool 4322616 Section Three - Part A, THEORY OF DRYING

71

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. To remove

the remaining water, it is necessary to convert the liquid water into water vapor. This process of

changing a liquid to a vapor is called evaporation. Under normal conditions, the process of evapora-

tion is very slow.

As an example, water in a glass set on a table at room temperature will take days to completely evapo-

rate. A damp towel from a shower, balled up and placed in a clothes hamper will probably still be damp

several days later when it is removed.

However, by controlling the conditions during the evaporation process, the rate of evaporation can be

accelerated.

BY APPLYING HEAT

The process of evaporation can be accelerated by

applying heat. As shown in

Figure 3-1

, when a pan

of water is heated on a stove top, the water rapidly

boils (evaporates from liquid to vapor.)

BY MOVING THE SURROUNDING AIR

The process of evaporation can be accelerated by

moving the surrounding air. During evaporation,

the air immediately surrounding the surface of

the liquid water can become saturated with water

vapor. At this point the air cannot accept any more

evaporating water. Moving the saturated air away

from the surface of the liquid water and replacing

it with air that can still accept water vapor can ac-

celerate the rate of evaporation.

As an example, clothing hung out to dry on a

clothes line will dry faster when there is a breeze,

and you will feel cooler (a sign of evaporation) when

you stand in front of a fan on a hot day.

(Fig. 3-2)

BY INCREASING THE SURFACE AREA OF THE LIQUID

The process of evaporation can be accelerated by

increasing the surface area of the liquid. As show

in Figure 3-3, the water in a glass can be poured

out onto the floor. Spread out in a puddle, the water

will likely evaporate in just a short amount of time.

Fig. 3-1

Fig. 3-2

Fig. 3-3

Contents

Main INTRODUCTION GOALS AND OBJECTIVES TABLE OF CONTENTS SECTION ONE - DIRECT DRIVE WASHER SECTION TWO - 22 COMPACT WASHER Page SECTION FOUR - 27 GAS AND ELECTRIC DRYERS SECTION FIVE - 24 and 27 THIN TWIN Page Page Section One - Part A INSTALLATION CONSIDERATIONS ABC COMMON INSTALLATION PROBLEMS Section One - Part B FILL Fig. 2-1 Fig. 2-3 Fig. 2-2 Fig. 2-4 Fig. 2-6 Fig. 2-7 Fig. 2-5 AGITATION Fig. 2-8 Fig. 2-9 Fig. 2-10 Fig. 2-11 DRAIN Fig. 2-12 Page SPIN Fig. 2-15 Fig. 2-16 Page Section One - Part C COMPONENT LOCATION Fig. 3-1 ACCESSING COMPONENTS IN THE CONSOLE Servicing Components in the Console Fig. 3-2 (Fig. 3-2) Fig. 3-3 Plastic Body Fig. 3-4 Removing the Water Level Switch (Fig. 3-7-A) Fig. 3-6 Fig. 3-7-A Fig. 3-7-B Metal Body (Fig. 3-5) ACCESSING COMPONENTS INSIDE THE WASHER CABINET (Fig. 3-9) Fig. 3-10 Figure 3-8, Inset 1 Figure 3-8 SERVICING THE TUB AND BASKET Fig. 3-11 Fig. 3-14 (Fig. 3-17) (Fig. 3-16) SERVICING THE DRIVE MOTOR AND PUMP (Fig. 3-18) (Fig. 3-15) Fig. 3-16 Fig. 3-15 SERVICING THE FRICTION PADS ON THE SUSPENSION PLA TE AND BASE ASSEMBLY Fig. 3-19 START CAPACITOR Fig. 3-20 Fig. 3-21 SERVICING THE GEARCASE Fig. 3-22 (Fig. 3-23) Fig. 3-24 Fig. 3-23 Removing the Brake and Drive Assembly (Fig. 3-27) Fig. 3-27 Fig. 3-25 Fig. 3-26 DIAGNOSIS AND TROUBLESHOOTING DIAGNOSIS AND TROUBLESHOOTING CHART Page COMPONENT TESTING WATER INLET V AL VE DRIVE MOTOR CENTRIFUGAL SWITCH START CAPACIT OR WATER TEMPERA TURE SWITCH Page Page Page Page 34 MODEL NUMBER DESIGNATION SERIAL NUMBER DESIGNATION The serial number for the Whirlpool brand Direct Drive Washer contains the following designations: CG 03 100003 ADDITIONAL LITERATURE SOURCES RESHIPPING KIT INFORMATION Page Page Page Section Two - Part A GENERAL INFORMATION 40 COTTONS: HEAVY PERMANENT PRESS SOAK ONLY HAND Table 2 C CYCLE CHART** WASH SPIN ONLY S.I.S. (Sub-Interval Spin) CBA CYCLE FUNCTIONS First Step Fill Cycle Wash (Agitate) Cycle Drain Cycle The Splutch Assembly (Fig. 3) The Splutch Assembly During Wash/Agitate (Fig. 4-A) The Splutch Assembly During Spin A B The Gearcase Assembly Section Two - Part B WASHER TOP COMPONENTS Washer Top Removal Circuit Board And Rotary Switch Removal Circuit Board and Rotary Switch Replacement Washer Top Replacement Page Water Level Switch Removal Water Level Switch Replacement CABINET COMPONENTS Water Inlet Components Removal Water Inlet Components Replacement Agitator Replacement Fig. 13 Fig. 14 Fig. 15 Basket Removal Basket Replacement Tub Removal Fig. 16 Fig. 17 Capacitor Replacement ! WARNING ELECTRICAL SHOCK HAZARD Fig. 19 Fig. 20 Solenoid Replacement Fig. 18 Drive Belt Replacement Fig. 21 Splutch Assembly Removal Fig. 22 Motor Plate Removal Fig. 23 Motor Replacement Fig. 25 Fig. 26 Brake Replacement Fig. 24 Servicing the Drain Pump Fig. 27 Servicing the Splutch Assembly Fig. 28 (Fig. 29) Servicing the Gearcase Page 59 Section Two - Part C TROUBLESHOOTING AND DIAGNOSTICS POSSIBLE CAUSE/TESTPROBLEM TROUBLESHOOTING POSSIBLE CAUSE/TESTPROBLEM DIAGNOSTIC TEST PROGRAM Entry Sequence Automatic Operations Test (Set TEMP SELECT: Cold/Cold - Initiate Entry Sequence) Table 8 63 Table 12 Table 10 Ohmmeter Resistance Tests (Table 11) CHECKING CYCLE SELECT SWITCH (Table 10) CHECKING TEMPERATURE SELECT SWITCH 64 Table 14 Table 13 Fig. 32 Page 66 - DE-ENERGIZED LINE - ENERGIZED LINE - LINE MAY BE ENERGIZED OR DE-ENERGIZED CONTROL SEQUENCE CHART SOAK DELICATE SUPER WASH MACHINE FUNCTION CYCLE Page Page Page Page Section Three - Part A THEORY OF DRYING Fig. 3-3 Figure 3-1 BY APPLYING HEAT MECHANICAL SYSTEMS TO ACCELERATE DRYING TO MAINTAIN DRYING EFFICIENCY Section Three - Part B Removing the Console Fig. 3-7 Fig. 3-5 Fig. 3-6 (Fig. 3-5) Removing the Dryer Top (Fig. 3-8) Fig. 3-9 Fig. 3-8 (Fig. 3-9) Drum (Fig. 3-10) Fig. 3-11 Fig. 3-10 (Fig. 3-11) Page Servicing Components on the Rear of the Bulkhead Electric Heater Element Fig. 3-13 ELECTRIC DRYER GAS DRYER Fig. 3-12 Page Page Page Section Four - Part A TIMER CONTROL CONSOLE Fig. 4-1 Electronic Dry-Miser CLEAN TOUCH CONTROL PAD Fig. 4-2 PUSH-TO-START KNOB C VERSION ELECTRONIC DRYER CONTROL Theory of Operation Heated Air Circulation (Fig. 4-4) Fig. 4-4 Side and Bottom Exhaust Venting Kit Section Four - Part B CONSOLE CONTROL REPAIRS Fig. 4-9 (Fig. 4-8) Removing the Console Removing the Clean Touch Switch Assembly Fig. 4-10 Removing the Push to Start Switch Fig. 4-11 Removing the Buzzer Removing the Door Switch Replacing the Drum Lamp Removing the Toe Panel Removing Blower Housing Replacing the Blower Wheel Replacing the Motor Replacing the Operating Thermostat and Bias Heater Replacing the Thermal Fuse Replacing the Heating Element (Electric Dryers) Removing the Burner Assembly (Gas Dryers) Replacing the High Limit Thermostat and Thermal Cutoff Replacing the Heat Duct Assembly Removing the Dryer Door Removing the Front Panel Replacing the Grille Assembly Removing the Belt and the Drum Replacing the Front Support Rollers and Shafts Removing the Rear Bulkhead Assembly Reattaching the Rear Bulkhead Page Section Four - Part C TROUBLESHOOTING and DIAGNOSISTROUBLESHOOTING and DIAGNOSIS SOLUTION TROUBLESHOOTING and DIAGNOSISTROUBLESHOOTING and DIAGNOSIS TROUBLESHOOTING and DIAGNOSIS TROUBLESHOOTING GUIDE CONDITION POSSIBLE CAUSE C VERSION ELECTRONIC DRYER CONTROL Component Testing Fig. 4-44 (Fig. 4-44) Timer Shuts Off but Clothes are Still Damp Page Page 99 STRIP CIRCUITS 1.Drive Motor Circuit - At moment of START 2.Drive Motor Circuit - RUNNING at speed TIMER SCHEDULE + Page Page 102 MODEL/SERIAL NUMBER PLATE LOCATION The serial number for the Whirlpool brand 27 DRYER contain the following designations: MODEL/SERIAL NUMBER DESIGNATIONS LEC9858 E 0Q MG 03 100003 Page Page Section Five - Part A Washer Controls Cycle Control Knob Fig. 5-1 Temperature Selector Dryer Controls * Cycle Control Knob Dryer Temperature Control Push To Start Button Section Five - Part B 24 ThinTwin Accessing the Control Panel Accessing the Washer Components Inset Page 24 ThinTwin Suspension System Fig. 5-14 27 ThinTwin Washer Access Front Panel Removal (Fig. 5-16) Fig. 5-16 Washer Mechanism Removal Control Panel Access (Fig. 5-22) Fig. 5-22 (Fig. 5-22) Dryer Access Dryer Toe Panel Access Door Front Panel Access Dryer Drive Motor Access (Fig. 5-29) Fig. 5-29 (Fig. 5-28) Fig. 5-28 Dryer Heater Element Access Dryer Belt Replacement (Fig. 5-33) Fig. 5-33 Page 119 Section Five - Part C TECHNICAL TIPS DRYER TIMER SCHEDULES WASHER EITHER NOT BOTH DRYER WASHER Wiring Diagram - Gas Dryer Models DRYER WASHER 122 MODEL/SERIAL NUMBER PLATE LOCATION MODEL/SERIAL NUMBER DESIGNATIONS LTE6234 D 0Q MG 03 100003 The serial number for the Whirlpool brand Thin Twin contains the following desig- nations: