Maytag JEA8120AD Manual

Technical Information—Electric Slide-In Range
March 2006 1 16026928
© 2006 Maytag Services
JES9750BA* JES9860BA*
•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 16026926 for detailed installation, operating, testing, troubleshooting, and disassembly
instructions.
CAUTION
!
All safety information must be followed as provided in Service Manual 16026926.
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
Model JES9750BA* JES9860BA* PLUG-IN CARTRIDGES
Power Source @ 240 V (208 V) Kw JEA8120AD* JEA7000AD*
Electrical rating 10.3 (7.8) 10.3 (7.8)
Frequency 60 Hz 60 Hz
Element Wattage @ 240 V (208 V)**
Radiant
Install in right bay
or remove grill
module and install
in left bay.
Coil
Install in right bay
or remove grill
module and install
in left bay.
Right front 1,800 2,100
Right rear See "Plug-In Cartridges"1,200 1,250
Left front 1,900 Grill 1,900 Grill
Left rear 1,900 Grill 1,900 Grill
Elements, Oven Wattage @ 240 V (208 V)**
Bake, hidden N/A 2,400 (1,850)
Bake 2,400 (1,850) N/A
Broil, 8-pass 3,600 (2,700) 3,600 (2,700)
Convection N/A 3,500 (2,550)
Oven Interior Dimensions in. (cm)
Height 17 ¼ (43.8) 17 ¼ (43.8)
Width 23 (58.4) 23 (58.4)
Depth 18 5/8 (47.3) 18 5/8 (47.3)
Product Exterior Dimensions in. (cm)
Height Overall 36 (91.4) 36 (91.4)
Width 29 7/8 (75.9) 29 7/8 (75.9)
Depth-oven door closed, excl. handle 26 3/16 (66.5) 26 3/16 (66.5)
Depth-oven door closed, incl. handle 28 3/16 (71.6) 28 3/16 (71.6)
Features
Two speed ventilation fan Yes Yes
Eight pass broil element Yes Yes
Downdraft fan Yes Yes
E Burner Yes Yes
Child lockout Yes Yes
Sabbath mode Yes Yes
Door activated oven light Yes Yes
Convection No Yes
Bread proofing No Yes
Delay start Yes Yes
Electronic control and ignition Yes Yes
Weight lbs. (kg)
Approximate shipping weight 171 (77.5) 171 (77.5)
**Rating of 208 VAC is approximately 80% of 240 VAC value.

Component Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
16026928 2 March 2006
© 2006 Maytag Services
Component Testing Procedures
Illustration Component Test Procedure Results
Oven light & housing Disconnect connector and test
resistance of terminals .............................
Measure voltage at oven light ..................
Verify bulb is properly inserted.
Continuity with bulb inserted.
120 VAC, see wiring diagram for terminal
identification.
If voltage is not present at oven light,
check wiring or light switches.
Door plunger switch Remove switch from unit and measure
the following points:
Door closed ..........................................
Door open.............................................
COM-NO= Continuity (closed).
COM-NO= Infinity (open).
Autolatch assembly Disconnect wires and test for continuity
per wiring diagram ...................................
Refer to Parts Manual for correct
autolatch switch associated with the
correct manufacturing number.
See wiring diagram for schematic layout.
Common is in neutral position unless
locking or unlocking autolatch assembly.
Indicator lights Measure voltage at indicator light............. If voltage is present and light does not
work, replace light.
If voltage is not present at indicator light,
check wiring.
Coil
Te r mi n a l s
COM N
O
Remote relay Infinite switch in the following positions:
On (any setting)....................................
Off ........................................................
COM-NO= Continuity (closed).
COM-NO= Infinity (open).
COM
NO
Door lock switch Switch connection in the following
positions:
Door latch locked..................................
Door latch unlocked..............................
COM-NO= Continuity (closed).
COM-NO= Infinity (open).
Broil element Disconnect wiring to element and
measure cold resistance of terminals.......
Measure voltage at broil element .............
Approx. 12.5 to 18 Ω.
240 VAC.
Bake element Disconnect wiring to element and
measure cold resistance of terminals.......
Measure voltage at bake element ............
Approx. 22 Ω.
240 VAC.
(JES9860BA*)
Convection element Disconnect wiring to element and
measure cold resistance of terminals.......
Measure voltage at convect element........
Approx. 16.5 Ω.
240 VAC.
(JES9860BA*)
Convection motor,
2-speed
Measure voltage ......................................
Check motor windings to ground..............
120 VAC. (tolerance: 105 to 135 VAC).
No continuity.
RPM, Lo-speed: Approx. 1440 to 2040.
RPM, Hi-speed: Approx. 1860 to 2460.
(JES9860BA*)
Oven limit switch Normally closed, verify operation:
Open: 209° to 221° F (98° to 105° C).....
Closed: 144° to 166° F (62° to 74° C) ....
Infinite.
Continuity.
(JES9750BA*)
Oven limit switch Normally closed, verify operation:
Open: 208° to 222° F (98° to 105° C).....
Closed: 156° to 174° F (69° to 79° C) ....
Infinite.
Continuity.

Component Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
March 2006 3 16026928
© 2006 Maytag Services
Illustration Component Test Procedure Results
Infinite switch
Remove wiring from P1 and P2.
Connect volt/ohms meter to P1 and
P2. Measure the following for voltages
at LO, MED, HI: .....................................
.
Voltage between P1 and P2...................
.
Approximate
Time On Time Off
SIMMER 5% 95%
MED (5) 35% 65%
HI 100% 0%
240 VAC.
Temperature sensor Measure resistance ...............................
.
Approx 1000 Ωat room temperature,
75° F (23.8° C).
Cooling fan motor Measure voltage ....................................
.
Check motor windings to ground............
.
120 VAC.
No continuity.
RPM: Approx. 1670 to 2070.
Downdraft motor
NOTE: Downdraft fan
will not engage if pan
(snap) switch is not
activated.
Measure voltage ....................................
.
Check motor windings to ground............
.
120 VAC.
No continuity.
RPM: 1550
Electronic control NOTE: To avoid equipment damage,
use caution when checking electronic
control circuitry voltages.
Coil element,
1250 W, 4-turn
Disconnect wiring to element and
measure cold resistance of terminals. ...
Measure voltage at element...................
Cartridge JEA7000AD*
Approx. 42 to 48 Ω.
240 VAC
Coil element,
2100 W, 5-turn
Disconnect wiring to element and
measure cold resistance of terminals. ...
Measure voltage at element...................
Cartridge JEA7000AD*
Approx. 25 to 28 Ω.
240 VAC
Ribbon element, 1800 W
Disconnect wiring to element and
measure cold resistance of terminals. ...
Measure voltage at element...................
Cartridge JEA8120AD*
Approx. 29.5 to 33.5 Ω.
240 VAC
Ribbon element, 1200 W
Disconnect wiring to element and
measure cold resistance of terminals. ...
Measure voltage at element...................
Cartridge JEA8120AD*
Approx. 44.5 to 48.5 Ω.
240 VAC
Grill assembly Disconnect wiring to element and
measure cold resistance of terminals. ...
.
Measure voltage at grill element ............
.
Approx. 30 Ω.
240 VAC.

Control Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
16026928 4 March 2006
© 2006 Maytag Services
Control Component Test Procedure Results
Switch membrane assembly
JES9750BA*
Closed circuitry resistance
(defined as continuity): 2000 Max Ω
Pins 1 & 11 are shorted together for control
configuration purposes
Detail B
See Detail B
Trace # 1 Latch
Pad
1
2
3
4
5
6
7
8
9
0
Cancel
Bake
Broil
Clean
Favorites
Vent Fan
More Options
Setup
ATM 1
ATM 2
Back
Enter
Timer 1
Timer 2
Oven Light
Trace
2 & 7
2 & 8
2 & 9
2 & 10
2 & 11
2 & 12
3 & 6
3 & 7
3 & 8
2 & 6
4 & 9
4 & 10
4 & 11
5 & 7
4 & 12
5 & 11
5 & 8
5 & 6
4 & 6
4 & 7
3 & 9
3 & 10
3 & 11
3 & 12
4 & 8
Measurement
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Switch membrane assembly
JES9860BA*
Closed circuitry resistance
(defined as continuity): 2000 Max Ω
Pins 1 & 10 are shorted together for control
configuration purposes
Detail B
See Detail B
Trace # 1 Latch
Pad
1
2
3
4
5
6
7
8
9
0
Cancel
Bake
Broil
Convect
Clean
Favorites
Rapid Preheat
Vent Fan
More Options
Setup
ATM 1
ATM 2
Back
Enter
Timer 1
Timer 2
Oven Light
Trace
2 & 7
2 & 8
2 & 9
2 & 10
2 & 11
2 & 12
3 & 6
3 & 7
3 & 8
2 & 6
4 & 9
4 & 10
4 & 11
5 & 9
5 & 7
4 & 12
5 & 10
5 & 11
5 & 8
5 & 6
4 & 6
4 & 7
3 & 9
3 & 10
3 & 11
3 & 12
4 & 8
Measurement
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
Continuity
COOLING FAN TEMPERATURES
MODE FAN ON TEMP F (C) FAN OFF TEMP F (C)
Bake 300 (148.9 C) 275 (135 C)
Broil Immediately 275 (135 C)
Clean Immediately 275 (135 C)

Control Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
March 2006 5 16026928
© 2006 Maytag Services
Electronic Oven Control (EOC) III Testing Procedures
Warm
Drawer
ATM PADS
ELECTRONIC OVEN CONTROL III TESTING/PROGRAMMING PROCEDURES
Feature Access Procedure Modification Procedure
Control Reset
Resets control to factory default
values.
Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left
ATM pad to select SERVICE menu options.
Press and hold the Back and Enter pads
for 5 seconds to enter SERVICE menu
options. Press the right ATM pad to scroll
to CONTROL RESET. Press the left ATM
pad to select CONTROL RESET, then
press the left ATM pad again to reset the
control logic. Press Setup to exit.
Oven Temperature Adjustment
Determines oven cavity offset
temperature (range from -35° F to
+35° F, or -21° C to +21° C).
Press the Setup pad, then press the right ATM
pad until TEMP ADJUST displays. Press the
left ATM pad to select oven TEMP
ADJUSTMENT settings.
Enter the offset temperature setting desired
using the digits pads. Press the right ATM
pad for + temperature adjustment, or the
left ATM pad for – temperature adjustment.
Press 0to reset control back to no
temperature adjustment. Wait 3 seconds
for the control to accept the request. Press
Setup to exit.
Time Options
Determines control time, day of
week, 12/24 hour clock.
Press the Setup pad, then the left ATM pad to
select TIME OPTIONS.
Press the right ATM pad to scroll to the
desired function to modify.
Time Set
Determines time of day (Monday
through Sunday) to display on
control.
Press the Setup pad, then the left ATM pad,
then the left ATM pad again to set the time of
day clock.
Enter the correct time using the digits pads
and press Enter. Press the left ATM pad to
select AM or the right ATM pad to select
PM. Press Setup to exit.
Day of Week
Determines day of week (Monday
thru Sunday) to display on control
Press the Setup pad, then the left ATM pad,
then press the right ATM pad until DAY
displays. Press the left ATM pad to set the day
of the week.
Press the right ATM pad until the correct
day displays, then press the left ATM pad
to select. Press Setup to exit.
12/24-Hour Clock Display
Determines 12-hour or 24-hour
clock display on control.
Press the Setup pad, then the left ATM pad,
then press the right ATM pad until 12/24HR
displays. Press the left ATM pad to select
12/24 HR clock.
Press the left ATM pad to select 12-hour
clock, or the right ATM pad to select 24-
hour clock. Press Setup to exit.
Clock & Day Display Disable
Determines if time of day and day
of week will display on control.
Press the Setup pad, then press the right ATM
pad until DISABLE displays. Press the left ATM
pad to select DISABLE settings.
Press the left ATM pad to select TIME, or
the right ATM pad to scroll to DAY, then
press the left ATM pad. Press the left ATM
pad to turn display on or the right ATM pad
to turn display off. Press Setup to exit.
Language Display
Determines language display on
control (English, French, Spanish).
Press the Setup pad, then press the right ATM
pad until LANGUAGE displays. Press the left
ATM pad to set LANGUAGE settings.
Press the right ATM pad until the desired
language displays (English, French,
Spanish). Press the left ATM pad. Press
Setup to exit.
C/F (Celsius/Fahrenheit) Display
Determines temperature display on
control (C or F).
Press the Setup pad, then press the right ATM
pad until C/F displays. Press the left ATM pad
to select C/F settings.
Press the left ATM pad to select Celsius or
the right ATM pad to select Fahrenheit.
Press Setup to exit.
Auto Convection
When enabled, reduces the
Convection Bake and Pastry
temperatures by 25° F (-3.9° C).
Press the Setup pad, then press the right ATM
pad until AUTO CONVECT displays. Press the
left ATM pad to select AUTO CONVECT
settings.
Press the left ATM pad to turn on auto
convect, or the right ATM pad to turn off
auto convect. Press Setup to exit.
Tone Options
Determines cook tones, timer
tones and volume settings.
Press the Setup pad, then press the right ATM
pad until TONES displays. Press the left ATM
pad to select TONES options.
Press the right ATM pad to scroll to the
desired tone to modify.

Control Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
16026928 6 March 2006
© 2006 Maytag Services
Feature Access Procedure Modification Procedure
Sabbath Mode
Based on the Jewish
guidelines for Sabbath/Holiday
requirements.
Press the Setup pad, then press the right ATM
pad until SABBATH displays. Press the left
ATM pad to select SABBATH settings.
Press the left ATM pad to select Manual Sabbath
mode, or the right ATM pad to select Auto Sabbath
mode. Press the left ATM pad to turn on Sabbath
mode, or the right ATM pad to turn off Sabbath
mode. Press Setup to exit.
12-Hour Shutoff
Disables 12-hour shutoff,
allowing the oven to operate
indefinitely.
Press the Setup pad, then press the right ATM
pad until 12HR Shutoff displays. Press the left
ATM pad to select 12-HOUR SHUTOFF
settings.
Press the left ATM pad to turn on 12-hour shutoff,
or the right ATM pad to turn off 12-hour shutoff.
Press Setup to exit.
208/240 V Setting
Determines range operating
voltage (208 or 240 VDC).
Press the Setup pad, then press the right ATM
pad until 208/240 displays. Press the left ATM
pad to select 208/240 V settings.
Press the left ATM pad to select 208 VDC, or the
right ATM pad to select 240 VDC. Press Setup to
exit.
Cook Tones
Determines the number and
duration of cook time reminder
chimes.
Press the Setup pad, then press the right ATM
pad until TONES displays. Press the left ATM
pad. Press the left ATM pad again to select
COOK TONES settings.
Press the left ATM pad to select 1 – 30 (1 chime
every 30 seconds after the initial 4 chimes), or
press the right ATM pad to scroll to 1 – 60 (1 chime
every 60 seconds after the initial 4 chimes) or 1
BEEP (no additional chimes after the initial 4
chimes). Press the left ATM pad to select the
desired setting. Press Setup to exit.
Timers Tones
Determines the number and
duration of timer reminder
chimes.
Press the Setup pad, then press the right ATM
pad until TONES displays. Press the left ATM
pad. Press the right ATM pad to scroll to
TIMERS TONES. Press the left ATM pad to
select TIMERS TONES settings.
Press the left ATM pad to select 2 – 30, or 2
chimes every 30 seconds for up to 5 minutes (after
the initial chime), or press the right ATM pad to
scroll to 2 – 60, or 2 chimes every 60 seconds for
up to 30 minutes (after the initial chime), or 1 BEEP
(no additional chimes after the initial chime). Press
the left ATM pad to select the desired setting.
Press Setup to exit.
Volume
Determines volumes of cook
and timer tones.
Press the Setup pad, then press the right ATM
pad until TONES displays. Press the left ATM
pad to select VOLUME settings.
Press the right ATM pad until VOLUME displays.
Press the left ATM pad. Press the left ATM pad to
select HIGH, or the right ATM pad to scroll to
MEDIUM or LOW. Press the left ATM pad to select
desired setting. Press Setup to exit.
Energy Saver Mode
Enables a 1 watt standby
feature. If no pad is pressed
within 5 minutes, the control
enters into a sleep mode.
Press the Setup pad, then press the right ATM
pad until ENERGY SAVER displays. Press
the left ATM pad to select ENERGY SAVER
mode settings.
Press the left ATM pad to enter the energy saver
mode or the right ATM pad to exit the energy saver
mode. Press Setup to exit.
Demo Mode
Enables a 1 watt standby
feature. If no pad is pressed
within 5 minutes, the control
enters into a sleep mode.
Press the Setup pad, then press the right ATM
pad until DEMO displays. Press the left ATM
pad to select DEMO mode settings.
Press the left ATM pad to enable the DEMO mode
or the right ATM pad to exit the DEMO mode.
Once the DEMO mode begins, press any key to
exit. Press Setup to exit, also.
Service Mode
Enables access to service
menus.
Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left
ATM pad to select SERVICE menu options.
Press and hold the Back and Enter pads for 5
seconds to enter SERVICE menu options. Press
Setup to exit.
Test Access
Enables access to service
menus.
Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left
ATM pad to select SERVICE menu options.
Press and hold the Back and Enter pads for 5
seconds to enter SERVICE menu options. Press
the right ATM pad to scroll to TEST menu. Press
the left ATM pad to select TEST options. Press
Setup to exit.
Faults Access
Displays the 10 most recent
faults produced by the
controller.
Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left
ATM pad to select SERVICE menu options.
Press and hold the Back and Enter pads for 5
seconds to enter SERVICE menu options. Press
the right ATM pad to scroll to the FAULTS menu.
Press the left ATM pad to select FAULTS options.
Press Setup to exit.
Software Versions Access
Displays the software and
EEPROM revision levels.
Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left
ATM pad to select SERVICE menu options.
Press and hold the Back and Enter pads for 5
seconds to enter SERVICE menu options. Press
the right ATM pad to scroll to the VERSIONS menu.
Press the left ATM pad to view. Press Setup to
exit.

Control Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
March 2006 7 16026928
© 2006 Maytag Services
Feature Access Procedure Modification Procedure
Display Test
Illuminates all lamps on the
control.
Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left
ATM pad to select SERVICE menu options.
Press and hold the Back and Enter pads for 5
seconds to enter SERVICE menu options. Press
the right ATM pad to scroll to DISPLAY TEST.
Press the left ATM pad. Press Setup to exit.
Control Lockout
Disables the touch keypad
control and locks the oven
cavity door.
Press the Back and Setup pads
simultaneously for 5 seconds to lock.
Press the Back and Setup pads simultaneously for
5 seconds to unlock.
Relay Logic for EOC III
NOTE: Subsequent changes implemented after the release of this technical sheet may have altered the parameters
identified in this chart.
INDEX
±- OFF
O - ON
- CYCLING
- ON OR OFF (DETERMINED BY
USER INPUT)
COOKING MODE
BAKE ELEMENT BROIL ELEMENT CONVECT ELEMENT CONVECT FAN OVEN LIGHT
IDLE rrrr
BAKE RAPID PREHEAT O rrr
BAKE PREHEAT O rrr
BAKE rrr
HIGH BROIL PREHEAT rO rr
HIGH BROIL rrr
LOW BROIL PREHEAT rO rr
LOW BROIL rrr
CLEAN PREHEAT rr
CLEAN rr
KEEP WARM PREHEAT Orrr
KEEP WARM rrr
CONVECT ROAST PREHEAT rrO r
CONVECT ROAST rrO*
CONVECT BAKE RAPID PREHEAT rrO r
CONVECT BAKE PREHEAT rrO r
CONVECT BAKE rrr
CONVECT PASTRY RAPID PREHEAT rrO O*
CONVECT PASTRY PREHEAT rrO O*
CONVECT PASTRY rrO*
THAW-SERVE rr
DRYING PREHEAT rrO r
DRYING rrr
RAPID PROOFING rrO O 
STANDARD PROOFING rrO r
*Convection fan stops when oven door is opened.

Control Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
16026928 8 March 2006
© 2006 Maytag Services
"Quick Test"Mode for EOC III
Follow the procedure below to perform the EOC III quick test. Once the control is in the quick test mode, any relay
may be activated in any sequence. The test mode will be exited after 10 minutes of inactivity (no pads pressed
within 10 minutes).
1. Press the Setup pad, then press the right ATM pad.
2. Press the left ATM pad, then press and hold Back and Enter pads for 5 seconds to enter SERVICE menu options.
3. Press the right ATM pad to scroll to the TEST menu.
4. Press the left ATM pad to select TEST options.
5. Press the left ATM pad again to enter the "Quick Test"mode.
6. Press each of the following pads indicated in the table below.
7. Press Cancel or Setup pads to exit.
NOTE: Press and hold the applicable pad to activate the associated response.
Release the applicable pad to deactivate the associated response.
The control automatically enters the engineering mode so visual feedback of relay operations is available on the
control display. Any time a load is activated, the cooling fan is activated. When the load is deactivated, the cooling
fan is also deactivated.
Display will indicate the following:
Pad Response
BAKE....................................................Bake relay activated.
BROIL ..................................................Broil relay activated.
CONVECT............................................Convection Bake relay activated.
OVEN LIGHT .......................................Oven light relay activated.
RAPID PREHEAT ................................Convection Fan (HIGH/LOW) activated.
WARMING ZONE ................................Warming Zone relay activated.
VENT (DOWNDRAFT) FAN ................Vent Fan relay activated.
CLEAN .................................................Motorized Door Lock relay activated.
SETUP .................................................1 Second Beep.
FAN ......................................................Downdraft Fan (HIGH/LOW) relay activated.
OVEN SENSOR
Sensor Type: RTD 1000 Ωplatinum
Calibration: 1654 Ω(350° F/177° C)
Temperature F (C) Resistance (Ohms)
100 (38) 1143
200 (94) 1350
300 (149) 1553
350 (177) 1654
400 (204) 1753
500 (260) 1949
600 (316) 2142
700 (371) 2331
800 (427) 2516
900 (483) 2697
1000 (538) 2874
MEAT PROBE
Type: NTC Thermistor
Calibration: 9938 Ω(150° F/65.5° C)
Temperature F (C) Resistance (Ohms)
32 (0) 163300
68 (20) 62450
95 (35) 32660
122 (50) 18020
158 (70) 8760
185 (85) 5360
212 (100) 3400

Control Testing Procedures
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
March 2006 9 16026928
© 2006 Maytag Services
Description of Fault Codes for EOC III
Each fault code consists of 4 digits and is structured as follows:
1st (Leftmost) Digit:
Primary Failure System 2nd Digit: Alpha-Character 3rd Digit: Secondary Failure Mechanism 4th Digit : Oven Cavity Number
1– Local to Control System d– Diagnostic Failure (measurable) 1– Upper (Single) Oven
3– Sensor or Meat Probe c– Control-Related Error (not measurable) 2– Lower Oven
4– Input to Control System c– Control System
9– Door Lock
If a fault is detected, then one of the following three messages will be scrolled on the display:
FAULT DETECTED PRESS ENTER TO TRY AGAIN. This message displays when a fault is detected while a
cooking function is active. Clear by pressing the Cancel keypad.
FEATURE NOT AVAILABLE. This message displays when a fault is detected while entering data during initial
programming and also when a locked out function is detected. Clear by pressing any key.
FAULT DETECTED DISABLE POWER TO CLEAR. This message displays when a runaway temperature condition
is detected while the control is in idle mode. Press any key to clear the message, but the fault remains until the
control senses a Power-On reset.
Fault
Code Description Component to Troubleshoot/Replace
1c1c Shorted key. Ensure ribbon cable is securely connected, inspect ribbon cable and
connector (shorts, breakage, corrosion, etc.). If OK, replace control.
1c2c Membrane keyboard disconnected. Ensure ribbon cable is securely connected, inspect ribbon cable and
connector (shorts, breakage, corrosion, etc.). If OK, replace control.
1c4c Board – to – Board communication failure. Replace control.
1c6c EEPROM hardware fault. Replace control.
1c7c Control not calibrated. Replace control.
1c8c EEPROM CRC error – User Options. Replace control.
1c81 EEPROM CRC error – Cook Profile. Replace control.
1d11 Unlocked runaway temperature – 600° F Ohm sensor and harness (see "Oven Sensor"chart). If OK, change
control.
1d21 Locked runaway temperature – 950° F Ohm sensor and harness (see "Oven Sensor"chart). If OK, change
control.
3d11 Temperature sensor open. Check connections, sensor (see "Oven Sensor"chart) and harness. If
OK, replace control.
3d21 Temperature sensor shorted. Check connections, sensor (see "Oven Sensor"chart) and harness. If
OK, replace control.
3d41 Meat probe shorted. Check probe jack and harness. If OK, check meat probe (see "Meat
Probe"chart).
3d51 Meat probe not calibrated. Check probe jack and harness. If OK, check meat probe (see "Meat
Probe"chart).
4d11 Door switch not closed when locked. Check connections, switch, harness, and motor. If OK, replace control.
4d21 No cooling fan rotation. Check cooling fan motor and harness. If OK, replace control.
4d31 Cooling fan on when de-energized. Check cooling fan motor and harness. If OK, replace control.
4d41 Cooling fan overspeed. Check cooling fan motor and harness. If OK, replace control.
4d51 Door switch circuit fault. Check connections, harness, and motor. If OK, replace control.
9d11 Latch will not lock. Check wire connections. If OK, replace motorized door lock.
9d21 Latch will not unlock. Check wire connections. If OK, replace motorized door lock.
9d31 Latch both locked and unlocked. Check wire connections. If OK, replace motorized door lock.

Wiring Diagram and Schematic
!WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless
testing requires power.
16026928 10 March 2006
© 2006 Maytag Services
JES9750BA * Wiring Diagram