Whirlpool 4322453 User manual

ELECTRIC RANGES
4322453

ii
Copyright 1998 Whirlpool Corporation, Benton Harbor, MI
WHIRLPOOL CORPORATION assumes no responsibility for
any repair made on our products by anyone other than qualified
TECH-CARE®Service Technicians.
Electrical Shock Hazard
Disconnect the range’s line cord plug from the wall receptacle before you service
any of the components inside the unit. Failure to do this could result in violent
electrical shock.
VOLTAGE CHECKS
When making voltage checks, be sure to observe the following precautions:
1. The floor must be dry. Water and dampness increase the chances of electrical
shock.
2. Set the voltmeter correctly for the voltage being measured.
3. Touch only the insulated parts of the meter probes.
4. Touch the component terminals, or wires, with the meter probe tips only.
5. Touch the meter probe tips only on the terminals being checked. Touching other
components could damage good parts.
PARTS QUALITY
An important step in the appliance repair procedure is the selection of FSP®
(FACTORY SPECIFICATION PARTS) as replacements. Use of “fits-all,” or “look
alike” parts could result in early parts failure, safety hazard, or substandard perfor-
mance of a WHIRLPOOL appliance. It could also result in an unnecessary repeat of
your repair efforts.
To be sure that the part(s) you purchase meet the exacting quality standards used to
build every new WHIRLPOOL appliance, be sure to ask for genuine FSP replacement
parts, as specified for your model. “FSP” is a registered trademark of WHIRLPOOL
CORPORATION.
You can buy your genuine FSP replacement parts from any authorized WHIRLPOOL
Parts Distributor.

iii
Table Of Contents
Section 1
Major Component Locations ...................................................................... Page 1
Section 2
Component Access & Testing .................................................................... Page 5
Section 3
Theory Of Operation ................................................................................ Page 26
Section 4
Wiring Diagram, Diagnosis Charts, & Error Codes .................................. Page 29

iv
INTRODUCTION
This program is designed to teach the servicer basic skills in handling common
service procedures for electric ranges.This program does not cover the diagnosis and
repair of all range problems and components, (oven liner, wiring harness, etc.).
PROGRAM OBJECTIVE
Upon completion of this program, the participants will be able to identify the location
of major range components, as well as diagnose problems, and remove and repair
the components causing the problem.
INSTRUCTIONS
This program has the following sections:
• Major Component Locations
• Component Access & Testing
• Theory Of Operation
• Wiring Diagram, Diagnosis Charts, & Error Codes
Complete the “Major Component Locations” section, and have the instructor review
the “Performance Check” before continuing. If you have any questions, ask your
instructor.
Needle-Nose Pliers
Screwdriver:
• Phillips.
Special Tools:
• Volt-Ohmmeter.
TOOLS YOU WILL NEED

- 1 -
– Section 1 –
MAJOR COMPONENT LOCATIONS
OBJECTIVE:
To teach the student how to identify the location of each major component in an electric range.
These components are the:
• Surface Heating Indicator
• Electronic Oven Control
• Infinite Switch (Element Control)
• Oven Temperature Sensor
• Electrical Terminal Block
• Plug-in Surface Element & Terminal Block
• Broil Element
• Bake Element
• Panel Light Switch
• Door Light Switch
• Door Latch
• Door Latching Mechanism

- 2 -
The illustration below shows the location of the major components in the electric range. Study the
illustration until you feel that you can mark the location of these components on a drawing. When
you are ready, proceed to the “Performance Check” on the next page.
Plug-In
Surface Element
(1 of 4)
Surface Element
Terminal Block
Broil Element
Electrical Terminal
Block
Electronic Oven Control
Infinite Switch
(Element Control)
(1 of 4)
Bake Element
Oven Temperature
Sensor
Door Light Switch
Door Latching
Mechanism
Door Latch
BAKE CUSTOM
BROIL AUTO
CLEAN
CLOCK
TIMER
..CANCEL
TEMP/
TIME
START
ENTER
5SEC
OFF
ON
TIMER
CANCEL
88 88
BAKE
BROIL
HEAT
START?
Surface Heating
Indicator (1 of 2)
Panel
Light Switch

- 3 -
Performance Check
Locate the individual components in the illustration on the next page, and place the letter of each
component name next to the arrow. Do not refer back to the example on page 2.
When you are finished, take the book to the instructor, and have the results recorded. After you
are signed-off by the instructor, proceed to the next section.
You have four (4) minutes to complete this exercise.

- 4 -
G. Broil Element
H. Bake Element
K. Electrical Terminal Block
L. Door Latching Mechanism
M. Door Latch
N. Panel Light Switch
P. Door Light Switch
A. Surface Heating Indicator
B. Infinite Switch (Element Control)
C. Electronic Oven Control
D. Oven Temperature Sensor
E. Plug-in Surface Element
F. Surface Element Terminal Block
BAKE CUSTOM
BROIL AUTO
CLEAN
CLOCK
TIMER
..CANCEL
TEMP/
TIME
START
ENTER
5SEC
OFF
ON
TIMER
CANCEL
88 88
BAKE
BROIL
HEAT
START?

- 5 -
–Section 2 –
COMPONENT ACCESS & TESTING
OBJECTIVES:
Given the customer complaint about an electric range problem, the student should be able to
properly diagnose the problem, and then remove and replace the defective component. The
service procedure for each of the following components is discussed in this section:
•Surface Heating Indicator
•Electronic Oven Control
•Infinite Switch (Element Control)
•Oven Temperature Sensor
•Electrical Terminal Block
•Plug-in Surface Element & Terminal Block
•Oven Door
•Broil Element
•Bake Element
•Oven Light Switches (door & panel )
•Door Latch
•Door Latching Mechanism
•Oven Vent
•Side Panel

- 6 -
MOVING THE RANGE AND REMOVING THE REAR PANEL
1. Unplug the range.
CAUTION: When you work on the range, be careful when handling the sheet metal parts. Sharp
edges may be present, and you can cut yourself if you are not careful.
2. To access the rear panel, pull the range forward so that the rear foot disengages from the anti-
tip bracket.
3. Remove the rear panel from the range by removing the mounting screws.
Leg In Anti-Tip Bracket
REAR
PANEL
BAKE CUSTOM
BROIL AUTO
CLEAN
CLOCK
TIMER
..CANCEL
TEMP/
TIME
START
ENTER
5SEC
OFF
ON
TIMER
CANCEL
88 88
BAKE
BROIL
HEAT
START?
IMPORTANT NOTE: When moving the range back into place, make sure that the
rear foot engages in the anti-tip bracket. Check to make sure that it is engaged
properly by pulling forward on the top of the range. The anti-tip bracket must be
installed. If parts are required to install a bracket, call the “ Whirlpool Consumer
Assistance Center ”at: 1-800-253-1301.

- 7 -
1. Set the voltmeter to the 240 VAC scale.
2. Press the Bake keypad and then the Start keypad.
3. Touch the meter leads to P2-4 and P3-4 on the electronic oven control board. The meter
should indicate 240 volts AC.
4. With the oven in the Broil mode, measure points P2-2 and P3-2 (Broil element circuit) for 240
volts AC.
REMOVING THE ELECTRONIC OVEN CONTROL
1. Unplug the range.
2. Remove the rear panel from the range.
3. Disconnect the connectors and wires from the terminals of
the oven control. NOTE: The connectors are sized so that
they cannot be installed incorrectly or interchanged on the
board.
4. From the back of the control panel, remove the two screws
from the oven control and remove it from the front panel.
WARNING
The following tests require 240 volts AC. Use extreme caution
when making measurements. Do not touch any component
leads with your bare hands. Use only the test probes to make
measurements.
Failure to do so can result in death, or serious injury.
TESTING THE ELECTRONIC OVEN CONTROL
L1 L2
R
BK
R
R
BAKE ELEMENT
OVEN CONTROL
BAKE RELAY
P2-4
P2-1
OVEN CONTROL
BROIL RELAY
P3-4 P3-1
240 VAC
+–

- 8 -
REMOVING AN INFINITE SWITCH (ELEMENT CONTROL)
1. Unplug the range.
2. Remove the rear panel from the range.
3. Remove all of the wires from the switch terminals.
4. Remove the control knob and the two phillips screws from the switch.
Element Control
(Infinite Switch)
Control Panel
Control Knob
Phillips
Screw
P
L2 L1
H2
H1
P
L1 L2
H1 H2
L1
L2
H2
H1
P
TESTING AN INFINITE SWITCH (ELEMENT CONTROL)
1. Set the ohmmeter to the R x 1 scale.
2. With no power applied, disconnect the wires from the control terminals. Turn the control to the
“HI”setting, and you should obtain continuity readings between the following terminals:
L1 and P
L1 and H1
L2 and H2

- 9 -
REMOVING THE SURFACE HEATING INDICATOR
1. Unplug the range.
2. Remove the rear panel from the range.
3. Slide the indicator off the red lens and disconnect the indicator wires.
RED LENS
SLIDE LIGHT
HOLDER CLIPS
OVER/OFF SHOULDER
FRONT OF
CONTROL
PANEL
PRESS INDICATOR ARMS
AGAINST PANEL AND
SLIDE OVER LENS
INDICATOR
TESTING THE INDICATOR
1. Set the ohmmeter to the R x 10K scale.
2. If not already done, disconnect the indicator light.
3. Touch the meter leads to the wire connectors of the indicator. The meter should indicate
24 kΩ(24,000 Ω) ±5%.

- 10 -
Performance Check
Perform the following steps to familiarize yourself with the various functions of the electronic oven
control (see the illustration below).
1. Set the clock for the Time-Of-Day. To set the clock:
•Press the CLOCK keypad. 12:00 will show on the display.
•Use the TIME/TEMP Up (s) and Down (t) keypads and enter the correct time.
•Press the START/ENTER keypad.
2. Set the electronic oven control to Bake and listen for the Bake relay to energize. To set the
control to Bake:
•Press the BAKE keypad. The display will indicate 350˚.
•Use the TIME/TEMP Up (s) and Down (t) keypads and change the display to 450˚.
•Press the START/ENTER keypad.
3. Listen for the Bake relay to energize (click).
4. Press the OFF/CANCEL keypad to turn off the BAKE function.
5. Repeat steps 2 through 4 and check the BROIL and CLEAN functions.
Perform the following steps to calibrate the electronic oven control (see the illustration below).
1. Press and hold the BAKE keypad for 5-seconds. CAL is shown in the display.
2. Pressing the TEMP/TIME keypad Up (s) arrow adjusts the temperature in 10˚F increments
in the following sequence: 0˚; 10˚; 20˚; 30˚; –30˚; –20˚; –10˚; 0˚.
3. Press the START/ENTER keypad to activate the desired temperature adjustment. If the
START/ENTER keypad is not pressed within 5-minutes, the adjustment is ignored.
4. The bake temperature adjustment cannot result in operating temperatures higher than 500˚F,
or lower than 170˚F, as measured at the center of the oven cavity.
5. Once the bake temperature has been adjusted, the broil and clean temperatures are
automatically offset by the same degree.
Refer to pages 7, 8, and 9, and remove the components from the control panel.
BAKE CUSTOM
BROIL AUTO CLEAN
CLOCK
TIMER
.. CANCEL
TEMP/
TIME
START
ENTER
5 SEC
OFF
ON
TIMER
CANCEL
88 88
BAKE
BROIL
HEAT
START ?

- 11 -
REMOVING THE OVEN TEMPERATURE SENSOR
1. Unplug the range.
2. Remove the rear panel from the range.
3. Unplug the connector from the oven temperature sensor.
4. Remove the two screws from the oven temperature sensor and remove it from the back of the
oven.
OVEN
TEMPERATURE
SENSOR
OVEN
TEMPERATURE
SENSOR CONNECTOR
SCREWS
ROUTE WIRE
THROUGH CLIP
BACK OF RANGE
TESTING AN OVEN TEMPERATURE SENSOR
1. Set the ohmmeter to the R x 10 scale.
2. Touch the meter leads to the plug pins (see the illustration). The meter should indicate
approximately 1100 Ωat 75 ˚F. For resistances at other temperatures, refer to the chart below.
NOTE: The readings are approximate.
Temperature (˚F) Resistance (Ω)
32 1000
75 1100
250 1450
350 1650
450 1850
550 2050
650 2230
900 2700
Oven Temperature
Sensor
Connector

- 12 -
REMOVING THE MAIN ELECTRICAL TERMINAL BLOCK
1. Unplug the range.
2. Remove the terminal block cover screws, push down to unhook the tabs from the chassis, and
pull it forward to remove it.
3. Remove the wiring from the terminal block.
4. Remove the mounting screws from the terminal block and remove it from the range.
PUSH DOWN
TO REMOVE
TERMINAL
BLOCK
COVER
Tabs

- 13 -
REMOVING THE PLUG-IN SURFACE ELEMENT
1. Unplug the range.
2. Push and lift the edge of the plug-in surface element opposite the terminal block just enough
to clear the reflector bowl, and then pull the element prongs out of the terminal block.
L1
P
H1 H2
L2
2100 W
ELEMENT
INFINITE
SWITCH
TESTING THE PLUG-IN SURFACE ELEMENT
1. Set the ohmmeter to the R x 1 scale.
2. With the element removed, touch the meter leads to ends of the prongs. The meter should
indicate the following (approximate ±20%) resistance for the indicated element:
8 " Element = 18 - 20 Ω
6 " Element = 30 - 33 Ω

- 14 -
REMOVING A SURFACE ELEMENT TERMINAL BLOCK
1. Unplug the range.
2. Remove the surface element from the terminal block.
3. Remove the screw from the terminal block you wish to service, unhook it from the cooktop,
and remove it.
4. Cut the two wires approximately 2
" - 3 " from the edge of the terminal block.
MAINTOP
CUT WIRES
SURFACE ELEMENT
TERMINAL BLOCK
SCREW
2" - 3"
5. Use the “Surface Unit Terminal Block Replacement”(#330031), and follow the instructions
contained in the package to install the new terminal block.
TESTING A SURFACE ELEMENT TERMINAL BLOCK
1. Visually inspect the terminal block for the following defects:
a) Cracked block.
b) Melted block.
c) Internal arcing (carbon buildup around terminals).
d) Burnt or charred wires.
e) Loose connectors.

- 15 -
Performance Check
1. Remove and test the oven temperature sensor.
2. Locate the main electrical terminal block.
3. Remove and test the surface elements.
4. Replace a surface element terminal block.

- 16 -
REMOVING THE OVEN DOOR
1. Open the oven door.
2. Remove the door hinge clip.
3. Insert a hinge retainer pin in each door hinge.
4. Close the door to the “broil”position, or until the door contacts the hinge pins.
5. Lift the door up and pull the hinges out of the slots.
LIFT
oven door
range
ROTATE
OVEN DOOR
HINGE
Hinge
Retainer Pin
Position Raised End Up
& Insert Door Stop Clip
Into Slot Over Door Hinge
On Both Sides Of Oven
Top Of Oven
Door Hinge
Slot In
Oven Frame