Maytag JDS8850BD, JDS9860BD, JDS9865BD Technical Information

Technical Information—Dual Fuel Slide-In Range

JDS8850BD* JDS9860BD* JDS9865BD*

• 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 16026929 for detailed installation, operating, testing, troubleshooting, and disassembly
instructions.

CAUTION

!

All safety information must be followed as provided in Service Manual 16026929.

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

Model JDS8850BD* JDS9860BD* JDS9865BD*
Power Source @ 120/240 V (120/208 V) Kw

Electrical rating 3.6 (2.7) 3.6 (2.7) 3.6 (2.7)
Amperage rating 40 Amp 40 Amp 40 Amp
Frequency 60 Hz 60 Hz 60 Hz

Water Column Pressure

Natural 5 in. W.C.P. 5 in. W.C.P. 5 in. W.C.P.
LP/Propane 10 in. W.C.P. 10 in. W.C.P. 10 in. W.C.P.

Surface Burner BTU Nat. (LP)

Right front 16,000 (14,000) 16,000 (14,000) 16,000 (14,000)
Right rear 5,000 (4,000) 5,000 (4,000) 5,000 (4,000)
Left front 15,000 (13,000) 8,500 (8,000) 8,500 (8,000)
Left rear 9,200 (9,100) 8,500 (8,000) 8,500 (8,000)

Elements, Oven Wattage @ 240 V (208 V)**

Bake, hidden 2,800 (2,100) N/A N/A
Bake N/A 2,400 (1,850) 2,400 (1,850)
Broil, 8-pass 3,600 (2,700) 3,600 (2,700) 3,600 (2,700)
Convection 3,400 (2,500) 3,400 (2,500) 3,400 (2,500)
Warmer drawer 550 (400) N/A N/A

Oven Interior Dimensions in. (cm)

Height 18 1/8 (46) 16 1/2 (41.9) 16 1/2 (41.9)
Width 23 (58.4) 23 (58.4) 23 (58.4)
Depth 18 5/8 (47.3) 17 1/2 (44.4) 17 1/2 (44.4)

Product Exterior Dimensions in. (cm)

Height Overall 36 (91.4) 36 (91.4) 36 (91.4)
Width 29 7/8 (75.9) 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) 26 3/16 (66.5)
Depth-oven door closed, incl. handle 28 3/16 (71.6) 28 3/16 (71.6) 28 3/16 (71.6)

Features

Convection element and fan Yes Yes Yes
Downdraft fan No Yes Yes
Warming drawer Yes No No
E-Burner No Yes Yes
Oven meat probe Yes Yes Yes
Child lockout Yes Yes Yes
Sabbath mode Yes Yes Yes
Door activated oven light Yes Yes Yes
Electronic control and ignition Yes Yes Yes

Weight lbs. (kg)

Approximate shipping weight 205 (93) 205 (93) 205 (93)

February 2006 1 16026930

© 2006 Maytag Services

**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 and gas to range before servicing,
unless testing requires power and/or gas.

Component Testing Procedures

Illustration Component Test Procedure Results

C

(JDS8850BD*)

Oven light & housing Disconnect connector and test

resistance of terminals...........................

Measure voltage at oven light ................

Door plunger switch Remove switch from unit and measure

the following points:

Door closed ........................................

Door 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.

Door lock switch Switch connection in the following

N

O

O

M

positions:

Door latch locked................................

Door latch unlocked............................

Pressure regulator Verify gas pressure (W.C.P.). ................

If on LP service verify proper gas
supply conversion.

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.

COM-NO= Continuity (closed)
COM-NO= Infinity (open)

See wiring diagram for schematic layout.

Common is in neutral position unless
locking or unlocking autolatch assembly.

COM-NO= Continuity (closed)
COM-NO= Infinity (open)

5" Natural
10" LP/propane

(JDS986*BD*)

(JDS8850BD*)

(JDS8850BD*)

Pressure regulator Verify gas pressure (W.C.P.). ................

5" Natural
10" LP/propane

If on LP service verify proper gas
supply conversion.

Top surface burner

5 K btu

9.2 K btu
16 K btu

Top surface,
dual burner

15 K btu

Inner: 3 K btu

Verify gas is supplied.............................

Verify burner cap is positioned

correctly .................................................

Verify gas is supplied.............................

Verify burner cap is positioned

correctly .................................................

Gas supplied.

Check for obstructions in burner ports.

Gas supplied.

Check for obstructions in burner ports.

Outer: 12 K btu

Top surface,

Verify cap is positioned correctly............ Check for obstructions in burner ports.

burner cap

5 K btu

9.2 K btu
16 K btu

Top surface,

Verify cap is positioned correctly............ Check for obstructions in burner ports.

burner cap, dual
(inner and outer
burners)

Spark ignition
electrode

Test for resistance of spark lead............

Test ignitor to chassis ............................

Continuity

No continuity from ignitor to chassis.

16026930 2 February 2006

© 2006 Maytag Services

Component Testing Procedures

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

Illustration Component Test Procedure Results

L

(JDS8850BD*)

(JDS986*BD*)

AB

A1

Spark module 4 + 0 Test for voltage at terminals L and N .....

B1N

Snap switch
(pan switch)

NOTE: Downdraft
fan will not engage
if this switch is not

Check polarity and ground.....................

Test for voltage at terminals ..................

Disconnect wiring and check for

continuity in LITE position......................

activated.
Dual burner valve

Verify gas is supplied.............................

Orifices adjusted for
Natural or LP.

Burner valve,
push-to-turn, 270°

5 K btu

9.2 K btu
16 K btu

Burner valve,
push-to-turn, 270°,
E-burner

Verify gas is supplied.............................

Orifice adjusted for
Natural or LP.

Adjust set screw for simmer control.

Verify gas is supplied.............................

Orifice adjusted for
Natural or LP.

Orifice holder

5 K btu

9.2 K btu
16 K btu

Adjust set screw for simmer control.

Verify gas pressure ...............................

Check orifice for debris..........................

120 VAC

See wiring diagram.

120 VAC

Continuity in LITE position.

Gas supplied.

Gas supplied.

Gas supplied.

5" Natural
10" LP/propane

Clean as needed.

(JDS8850BD*)

Orifice holder,
dual burner

12 K btu
3 K btu

(JDS8850BD*)

Spark switch Test for voltage at terminals ..................

(JDS986*BD*)

Spark switch Test for voltage at terminals ..................

(JDS986*BD*)

Double valve switch Test for voltage at terminals ..................

Temperature sensor Measure resistance ............................... Approx 1000 Ω at room temperature,

Convection element Disconnect wiring to element and

February 2006 3 16026930

© 2006 Maytag Services

Verify gas pressure ...............................

Check orifice for debris..........................

Disconnect wiring and check for

continuity in LITE position......................

Disconnect wiring and check for

continuity in LITE position......................

Disconnect wiring and check for

continuity in LITE position......................

measure cold resistance of terminals. ...

Measure voltage at convect element .....

5" Natural
10" LP/propane

Clean as needed.

120 VAC

Continuity in LITE position.

120 VAC

Continuity in LITE position.

120 VAC

Continuity in LITE position.

75° F (23.8° C).

Approx. 16.5 Ω.
240 VAC.

Component Testing Procedures

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

Illustration Component Test Procedure Results

(JDS986*BD*)

(JDS986*BD*)

E-burner assembly Verify gas is supplied................................. Gas supplied,

E-burner ignitor Test for resistance of spark lead................

Test ignitor to chassis ................................

Check for obstructions in burner ports.

Continuity.

No continuity from ignitor to chassis.

(JDS986*BD*)

(JDS986*BD*)

(JDS8850BD*)

(JDS986*BD*)

(JDS8850BD*)

(JDS986*BD*)

(JDS8850BD*)

(JDS8850BD*)

(JDS8850BD*)

E-burner tube, front Nominal air shutter setting .........................

E-burner tube, rear Nominal air shutter setting .........................

Hidden bake
element

Broil element Disconnect wiring to element and

Bake element Disconnect wiring to element and

Warmer element Disconnect wiring to element and

Convection motor,
2-speed

Oven limit switch Normally closed, verify operation:

Oven limit switch Normally closed, verify operation:

Hi-limit temperature
switch
(Warming Drawer)

Hi-limit temperature
switch
(Warming Drawer)

Tolerance...................................................

Tolerance...................................................

Disconnect wiring to element and

measure cold resistance of terminals.........

Measure voltage at bake element ..............

measure cold resistance of terminals.........

Measure voltage at broil element ...............

measure cold resistance of terminals.........

Measure voltage at bake element ..............

measure cold resistance of terminals.........

Measure voltage at broil element ...............

Measure voltage ........................................

Check motor windings to ground ...............

Open: 253° to 267° F (123° to 131° C).....

Closed: 188° to 212° F (87° to 100° C) ....

Open: 209° to 221° F (98° to 105° C).......

Closed: 144° to 166° F (62° to 74° C) ......

Normally closed, verify operation:

Open: 135° to 145° F (57° to 63° C).........

Closed: 114° to 126° F (46° to 52° C) ......

Normally closed, verify operation:

Open: 95° to 105° F (35° to 41° C)...........

Closed: 79° to 91° F (26° to 33° C)..........

.250 1/4"
.031 Approx. 1/32"

.250 1/4"
.031 Approx. 1/32"

Approx. 20 Ω.
240 VAC.

Approx. 12.5 to 18 Ω.
240 VAC.

Approx. 22 Ω.
240 VAC.

Approx. 12.5 to 18 Ω.
120 VAC.

120 VAC. (tolerance: 105 to 135 VAC)
No continuity.

RPM, Lo-speed: Approx. 1440 to 2040
RPM, Hi-speed: Approx. 1860 to 2460

Infinite.
Continuity.

Infinite.
Continuity.

Infinite.
Continuity.

Infinite.
Continuity.

16026930 4 February 2006

© 2006 Maytag Services

Component & Control Testing Procedures

.

.

.

.

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

Illustration Component Test Procedure Results

(JDS986*BD*)

Downdraft motor

NOTE: Downdraft
fan will not engage
if pan (snap) switch
is not activated.

Electronic control

Measure voltage ........................................

Check motor windings to ground ...............

NOTE: To avoid equipment damage,

120 VAC.
No continuity.

RPM: 1550
AMPERAGE: Approx. 2.4

use caution when checking electronic

Cooling fan motor Measure voltage ........................................

control circuitry voltages.

Check motor windings to ground ...............

120 VAC.
No continuity.

RPM: Approx. 1670 to 2070
AMPERAGE: Approx. .22

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)

COOLING FAN TEMPERATURES

Control Component Test Procedure Results

Switch membrane assembly

JDS9865BD*

Closed circuitry resistance
(defined as continuity): 2000 Max Ω
Pins 1 & 7 are shorted together for control
configuration purposes

Trace # 1

Latch
See Detail B

Detail B

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

February 2006 5 16026930

© 2006 Maytag Services

Control Testing Procedures

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

Control Component Test Procedure Results

Switch membrane assembly

JDS8850BD*

Switch membrane assembly

JDS9860BD*

ELECTRONIC OVEN CONTROL III TESTING/PROGRAMMING PROCEDURES

Feature Access Procedure Modification Procedure

Control Reset

Resets control to factory default
values.

Closed circuitry resistance
(defined as continuity): 2000 Max Ω
Pins 1 & 7 are shorted together for control
configuration purposes

Trace # 1

Latch

See Detail B

Detail B

Closed circuitry resistance
(defined as continuity): 2000 Max Ω
Pins 1 & 7 are shorted together for control
configuration purposes

Trace # 1

Latch

See Detail B

Detail B

Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left
ATM pad to select SERVICE menu options.

Pad
1
2
3
4
5
6
7
8
9
0
Cancel
Bake
Broil
Convect
Clean
Favorites
Rapid Preheat
Warming Drawer
More Options
Setup
ATM 1
ATM 2
Back
Enter
Timer 1
Timer 2
Oven Light
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

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.

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

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

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

16026930 6 February 2006

© 2006 Maytag Services

Control Testing Procedures

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

Electronic Oven Control (EOC) III Testing Procedures

ELECTRONIC OVEN CONTROL III TESTING/PROGRAMMING PROCEDURES

Feature Access Procedure Modification Procedure

Oven Temperature Adjustment

Determines oven cavity offset
temperature (range from -35° F to
+35° F, or -21° C to +21° C).

Time Options

Determines control time, day of
week, 12/24 hour clock.

Time Set

Determines time of day (Monday
through Sunday) to display on
control.

Day of Week

Determines day of week (Monday
thru Sunday) to display on control

12/24-Hour Clock Display

Determines 12-hour or 24-hour
clock display on control.

Clock & Day Display Disable

Determines if time of day and day
of week will display on control.

Language Display

Determines language display on
control (English, French, Spanish).

C/F (Celsius/Fahrenheit ) Display

Determines temperature display
on control (C or F).

Auto Convection

When enabled, reduces the
Convection Bake and Pastry
temperatures by 25° F (-3.9° C).

Sabbath Mode

Bases on the Jewish guidelines for
Sabbath/Holiday requirements.

Tone Options

Determines cook tones, timer
tones and volume settings.

12-Hour Shutoff

Disables 12-hour shutoff, allowing
the oven to operate indefinitely.

February 2006 7 16026930

© 2006 Maytag Services

!

WARNING

Warm
Drawer

ATM PADS

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.

Press the Setup pad, then the left ATM pad
to select TIME OPTIONS.

Press the Setup pad, then the left ATM pad,
then the left ATM pad again to set the time of
day clock.

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 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 Setup pad, then press the right
ATM pad until DISABLE displays. Press the
left ATM pad to select DISABLE settings.

Press the Setup pad, then press the right
ATM pad until LANGUAGE displays. Press
the left ATM pad to set LANGUAGE settings.
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 Setup pad, then press the right
ATM pad until AUTO CONVECT displays.

Press the left ATM pad to select AUTO
CONVECT settings.
Press the Setup pad, then press the right
ATM pad until SABBATH displays. Press the
left ATM pad to select SABBATH 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 Setup pad, then press the right
ATM pad until 12HR Shutoff displays. Press
the left ATM pad to select 12-HOUR
SHUTOFF 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 0 to
reset control back to no temperature
adjustment. Wait 3 seconds for the control to
accept the request. Press Setup to exit.
Press the right ATM pad to scroll to the desired
function to modify.

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.
Press the right ATM pad until the correct day
displays, then press the left ATM pad to select.
Press Setup to exit.

Press the left ATM pad to select 12-hour clock,
or the right ATM pad to select 24-hour clock.
Press Setup to exit.

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.
Press the right ATM pad until the desired
language displays (English, French, Spanish).
Press the left ATM pad. Press Setup to exit.
Press the left ATM pad to select Celsius or the
right ATM pad to select Fahrenheit. Press
Setup to exit.
Press the left ATM pad to turn on auto convect,
or the right ATM pad to turn off auto convect.
Press Setup to exit.

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.
Press the right ATM pad to scroll to the desired
tone to modify.

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.

Component & Oven Control Testing Procedures

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

Feature Access Procedure Modification Procedure

208/240 V Setting

Determines range operating
voltage (208 or 240 VDC).

Cook Tones

Determines the number and
duration of cook time
reminder chimes.

Timers Tones

Determines the number and
duration of timer reminder
chimes.

Volume

Determines volumes of cook
and timer tones.

Energy Saver Mode

Enables a 1 watt standby
feature. If no pad is pressed
within 5 minutes, the control
enters into a sleep mode.

Demo Mode

Enables a 1 watt standby
feature. If no pad is pressed
within 5 minutes, the control
enters into a sleep mode.

Service Mode

Enables access to service
menus.

Test Access

Enables access to service
menus.

Faults Access

Displays the 10 most recent
faults produced by the
controller.

Software Versions Access

Displays the software and
EEPROM revision levels.

Display Test

Illuminates all lamps on the
control.

Control Lockout

Disables the touch keypad
control and locks the oven
cavity door.

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 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 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 Setup pad, then press the right ATM
pad until TONES displays. Press the left ATM pad
to select VOLUME settings.

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 Setup pad, then press the right ATM
pad until DEMO displays. Press the left ATM pad
to select DEMO mode settings.

Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left ATM
pad to select SERVICE menu options.
Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left ATM
pad to select SERVICE menu options.

Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left ATM
pad to select SERVICE menu options.

Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left ATM
pad to select SERVICE menu options.

Press the Setup pad, then press the right ATM
pad until SERVICE displays. Press the left ATM
pad to select SERVICE menu options.

Press the Back and Setup pads simultaneously
for 5 seconds to lock.

Press the left ATM pad to select 208 VDC, or the
right ATM pad to select 240 VDC. Press Setup
to exit.
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.
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.
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.
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.

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.

Press and hold the Back and Enter pads for 5
seconds to enter SERVICE menu options. Press
Setup to exit.
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.
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.
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.
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.
Press the Back and Setup pads simultaneously
for 5 seconds to unlock.

16026930 8 February 2006

© 2006 Maytag Services

Control Testing Procedures

!

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

WARNING

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

IDLE
BAKE RAPID PREHEAT
BAKE PREHEAT
BAKE
HIGH BROIL PREHEAT
HIGH BROIL
LOW BROIL PREHEAT
LOW BROIL
CLEAN PREHEAT
CLEAN
KEEP WARM PREHEAT
KEEP WARM
WARMING DRAWER HIGH
WARMING DRAWER LOW
CONVECT ROAST PREHEAT
CONVECT ROAST
CONVECT BAKE RAPID PREHEAT
CONVECT BAKE PREHEAT
CONVECT BAKE
CONVECT PASTRY RAPID PREHEAT
CONVECT PASTRY PREHEAT
CONVECT PASTRY
THAW-SERVE
DRYING PREHEAT
DRYING
RAPID PROOFING
STANDARD PROOFING

*Convection fan stops when oven door is opened.

BAKE ELEMENT

BROIL ELEMENT

CONVECT ELEMENT

CONVECT FAN

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WARMING DRAWER

OVEN LIGHT

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February 2006 9 16026930

© 2006 Maytag Services

Control Testing Procedures

!

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

WARNING

"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 and Cooling Fan relays 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.

WARMING DRAWER ..........................Warming Drawer (HIGH/LOW) relay activated.

Sensor Type: RTD 1000W platinum
Calibration: 1654Ω (350° F/177° C)
Temperature F
(C)

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

OVEN SENSOR

Resistance
(Ohms)

100 (38) 1143
200 (94) 1350

MEAT PROBE
Type: NTC Thermistor
Calibration: 9938Ω (150° F/65.5° C)
Temperature F
(C)

32 (0) 163300
68 (20) 62450
95 (35) 32660

122 (50) 18020
158 (70) 8760
185 (85) 5360

212 (100) 3400

Resistance
(Ohms)

16026930 10 February 2006

© 2006 Maytag Services

Control Testing Procedures

!

WARNING

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

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
1 – Local to Control System d – Diagnostic Failure (measurable)
3 – Sensor or Meat Probe c – Control-Related Error (not measurable)
4 – Input to 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

1c1c Shorted key.

1c2c Membrane keyboard disconnected.

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°

1d21 Locked runaway temperature – 950°

3d11 Temperature sensor open.

3d21 Temperature sensor shorted.

3d41 Meat probe shorted.

3d51 Meat probe not calibrated.

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.

Description Component to Troubleshoot/Replace

2nd Digit: Alpha-Character 3rd Digit: Secondary

Failure Mechanism

Ensure ribbon cable is securely connected, inspect ribbon cable and
connector (shorts, breakage, corrosion, etc.). If OK, replace control.
Ensure ribbon cable is securely connected, inspect ribbon cable and
connector (shorts, breakage, corrosion, etc.). If OK, replace control.

Ohm sensor and harness (see "Oven Sensor" chart). If OK, change
control.
Ohm sensor and harness (see "Oven Sensor" chart). If OK, change
control.
Check connections, sensor (see "Oven Sensor" chart) and harness. If
OK, replace control.
Check connections, sensor (see "Oven Sensor" chart) and harness. If
OK, replace control.
Check probe jack and harness. If OK, check meat probe (see "Meat
Probe" chart).
Check probe jack and harness. If OK, check meat probe (see "Meat
Probe" chart).

4th Digit : Oven

Cavity Number
1 – Upper (Single) Oven
2 – Lower Oven
c – Control System

February 2006 11 16026930

© 2006 Maytag Services

Control Testing Procedures

!

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

Gas Conversion: JDS986*BD*

Pressure Regulator Conversion

1. Remove cap and force plastic plunger from
bottom of cap.

2. Turn plunger over and force back into original
location.

NOTE: Plunger must snap into position and the type of

gas being supplied (NAT or LP) must be visible
on lower side of plunger.

JDS986*BD* Pressure Regulator Conversion

WARNING

Natural

LP

Gas Conversion: JDS8850BD*

Pressure Regulator Conversion

1. Remove plastic dust cover from cap nut (top of
regulator) and remove cap nut.

2. Remove plastic dust cover from cap nut and reinstall
on opposite side of cap nut.

3. Reinstall cap nut into regulator, replace dust cover.

NOTE: The marking for the type of gas being supplied

(NAT or LP) must be visible in top of cap nut.

Natural

LP

JDS8850BD* Pressure Regulator Conversion

Orifice Conversion:

1. Remove grates, burner caps, screws and burner
heads (and grill, on models JDS986*BD*).

2. Converting one burner at a time, remove existing
orifice hoods and install new orifice hood (see chart

below), screw down tight. Do not over tighten.

3. Replace grates, burner caps, screws and burner
heads (and grill, on models JDS986*BD*).

Low Flame Adjustment:

1. Adjusting one burner at a time, turn burner control
knob to lowest position and remove knob.

2. Insert screwdriver into knob stem to engage
adjustment screw and adjust flame height (no blue
lifting or yellow flame).

3. Replace burner control knob.

RF
RR

GRILL

Natural LP

1.95 mm Red (1.14 mm)

Green (1.07 mm) Blue (.69 mm)

Green (1.07 mm) .033 mm

Orifice Conversion:

1. Remove burner grates, caps, screws and heads.

2. Converting one burner at a time, remove existing
orifice hoods and install new orifice hood (see chart

below), screw down tight. Do not over tighten.

3. Replace burner grates, caps, screws and heads.

Low Flame Adjustment:

1. Adjusting one burner at a time, turn burner control
knob to lowest position and remove knob.

2. Insert screwdriver into knob stem to engage
adjustment screw and adjust flame height (no blue
lifting or yellow flame).

3. Replace burner control knob.

NOTE: Drop in LP CHOKE after replacing burner heads

and screws, but before replacing caps and grates.

RF
RR
LR

LF Inner

Natural LP

1.95 mm Red (1.14 mm)

Green (1.07 mm) Blue (.64 mm)

1.42 mm .91 mm

.78 mm White (.55 mm)

16026930 12 February 2006

LF Outer

1.86 mm

Orange (.97 mm)

and Choke

© 2006 Maytag Services

Wiring Diagram and Schematic

!

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

WARNING

February 2006 13 16026930

© 2006 Maytag Services

JDS8850BD* Wiring Diagram

Wiring Diagram and Schematic

!

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

WARNING

16026930 14 February 2006

JDS8850BD* Control Circuits

© 2006 Maytag Services

Wiring Diagram and Schematic

!

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

WARNING

February 2006 15 16026930

© 2006 Maytag Services

JDS9860BD*, JDS9865BD* Wiring Diagram

Wiring Diagram and Schematic

!

To avoid risk of electrical shock, personal injury or death; disconnect power and gas to range before servicing,
unless testing requires power and/or gas.

WARNING

JDS9860BD*, JDS9865BD* Control Circuits

16026930 16 February 2006

© 2006 Maytag Services