Jenn-Air JES9860BA Series, JES8850BC Series, JES9750BA Series, JES8850BA Series, JES9860BC Series Service Manual

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Service

This manual is to be used by qualified appliance technicians only. Maytag does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person.

Electric Slide-In Range

This Base Manual covers general information

Refer to individual Technical Sheet

for information on specific models

This manual includes, but is

not limited to the following:

JES8750BA* JES8850BA* JES8850BC* JES9750BA* JES9800BA* JES9860BA* JES9860BC* JES9900BA* JES9900BC*

16026926

March 2006

Important Information

Maytag will not be responsible for personal injury or property damage from improper service procedures. Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts,

testing instruments and the appropriate service information. IT IS THE TECHNICIANS RESPONSIBLITY TO

REVIEW ALL APPROPRIA TE SERVICE INFORMA TION BEFORE BEGINNING REP AIRS.

Important Notices for Servicers and Consumers

To avoid risk of severe personal injury or death, disconnect power before working/servicing on appliance to avoid electrical shock.

To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this product. For further assistance, please contact:

WARNING

Customer Service Support Center

CAIR Center

Web Site Telephone Number

WWW.JENNAIR.COM ............................................. 1-800-536-6247

WWW.MAYTAG.COM ............................................. 1-800-688-9900

WWW.AMANA.COM................................................ 1-800-843-0304

CAIR Center in Canada ................................................ 1-800-688-2002

Recognize Safety Symbols, Words, and Labels

DANGER!

DANGER—Immediate hazards which WILL result in severe personal injury or death.

WARNING!

WARNING—Hazards or unsafe practices which COULD result in severe personal injury or death.

CAUTION!

CAUTION—Hazards or unsafe practices which COULD result in minor personal injury, product or property

damage.

Table of Contents

Important Information ................................................... 2

Important Safety Information

All Appliances .......................................................... 4

Surface Cooking Units ............................................. 4

Ovens ....................................................................... 5

Self-Cleaning Ovens ................................................ 5

Glass/Ceramic Cooking Surfaces ............................ 5

Ventilation Hoods ..................................................... 5

In Case of Fire ......................................................... 5

Surface Element Fire ............................................... 5

Oven Fires ............................................................... 5

Precautions ............................................................. 5

Product Safety Devices ........................................... 6

General Information

Cooking Nomenclature ............................................. 7

Specifications .......................................................... 8

Placement of the Oven ............................................. 8

Do Not Block Air Vents ............................................ 8

Location of Model Number ........................................ 8

Grounding Instructions ............................................. 8

Model Identification .................................................. 8

Service ..................................................................... 8

Parts and Accessories ............................................. 8

Extended Service Plan ............................................. 8

Range Description ................................................... 9

Troubleshooting Procedures

Troubleshooting Chart ............................................ 10

Description of Fault Codes for EOC III .................. 11

Fault Code Chart.................................................... 11

Oven Sensor, Meat Probe and ...................................

Cooling Fan Temperature Charts ...................... 12

Testing Procedures

Component Testing Procedures ............................. 13

Cooling Fan Temperatures ..................................... 16

Control Testing Procedures ................................... 17

Electronic Oven Control (EOC III)

Testing Procedures .......................................... 20

Relay Logic for EOC III ......................................... 23

Quick Test Mode for EOC III.................................. 24

Oven Sensor and Meat Probe Resistances ............ 24

Description of Fault Codes for EOC III .................. 25

Disassembly Procedures

Removing and Replacing Range ............................ 26

Cartridge Assembly Removal (Select Models) ........ 26

Maintop Assembly Removal ................................... 26

Control Panel Assembly Removal ........................... 26

Electronic Control Replacement ............................. 26

Infinite Switch Removal .......................................... 26

Bottom Access Panel Removal (Select Models) ..... 26

Indicator Light Removal ......................................... 27

Meat Probe Receptacle

Replacement (Select Models) ........................... 27

Back Panel Removal .............................................. 27

Cooling Fan Replacement ...................................... 27

Hidden Bake Element

Replacement (Select Models) ........................... 27

Bake Element Replacement (Select Models) .......... 27

Broil Element Replacement .................................... 27

Downdraft Blower Motor Removal (Select Models) . 27

Convection Motor Removal (Select Models) ........... 28

Convection Element Removal (Select Models) ....... 28

Oven Sensor Replacement ..................................... 28

Oven Light Bulb/Oven Light Socket Replacement .. 28

Oven Vent/Smoke Eliminator Removal ................... 28

Oven Hi-Limit Thermostat Replacement ................. 28

Oven Door Latch Replacement .............................. 29

Warming Drawer Removal (Select Models) ........... 29

Warming Drawer Element

Removal (Select Models) .................................. 29

Warming Drawer Hi-Limit Switch

Replacement (Select Models) ........................... 29

Oven Door Removal ............................................... 29

Oven Door Hinge Removal ..................................... 29

Oven Door Disassembly ........................................ 29

Warming Drawer Disassembly (Select Models) ..... 30

Warming Drawer Track

Disassembly (Select Models) ........................... 30

Oven Door, Warming Drawer and

Access Panel Disassembly .............................. 30

Appendix A: Installation Instructions .......................... A-2

Appendix B: Use and Care Information ..................... B-2

Important Safety Information

WARNING

To reduce the risk of the appliance tipping, it must be secured by a properly installed anti-tip bracket(s). To make sure bracket has been installed properly, remove the storage drawer and look under the range with a flashlight. Bracket(s) must be engaged in the rear corner of the range.

• ALL RANGES CAN TIP

• INJURY TO PERSONS COULD RESULT

• INSTALL ANTI-TIP BRACKET(S) PACKED WITH RANGE

• SEE INSTALLATION INSTRUCTIONS

WARNING

To avoid personal injury, do not sit, stand or lean on oven door or oven drawer.

ALL APPLIANCES

1. Proper Installation—Be sure your appliance is properly installed and grounded by a qualified technician.

2. Never Use Your Appliance for Warming or Heating the Room.

3. Do Not Leave Children Alone—Children should not be alone or unattended in the area where the appliance is in use. They should never be allowed to sit or stand on any part of the appliance.

4. Wear Appropriate Apparel—Loose fitting or hanging garments should never be worn while using appliance.

5. User Servicing—Do not repair or replace any part of the appliance unless specifically recommended in the manual. All other servicing should be referred to a qualified technician.

6. Storage in or on Appliance—Flammable materials should not be stored in an oven or near surface units.

7. Do Not Use Water on Grease Fires—Smother fire or flame, or use dry chemical or foam-type extinguisher.

8. Use Only Dry Potholders—Moist or damp potholders on hot surfaces may result in burns from steam. Do not let potholder touch elements. Do not use a towel or other bulky cloth.

WARNING

To avoid risk of electrical shock, personal injury, or death, make sure your range has been properly grounded and always disconnect it from main power supply before any servicing.

WARNING

This appliance contains or produces a chemical or chemicals which can cause death or serious illness and which are known to the state of California to cause cancer, birth defects or other reproductive harm. To reduce the risk from substances in the fuel or from fuel combustion make sure this appliance is installed, operated, and maintained according to the instructions in this booklet.

To avoid risk of electrical shock, property damage, personal injury, or death, verify wiring is correct, if components were replaced. Verify proper and complete operation of unit after servicing.

WARNING

SURFACE COOKING UNITS

1. Use Proper Pan Size—This appliance is equipped with one or more surface units of different size. Select utensils having flat bottoms large enough to cover the surface unit heating element. The use of undersized utensils will expose a portion of the heating element to direct contact and may result in ignition of clothing. Proper relationship of utensil to burner will also improve efficiency.

2. Never Leave Surface Units Unattended at High Heat Settings—Boilover causes smoking and greasy spillovers that may ignite.

3. Protective Liners—Do not use aluminum foil to line oven bottom. Improper installation of these liners may result in a risk of electrical shock or fire.

4. Glazed Cooking Utensils—Do not use glass, ceramic, earthware, or other glazed utensils. They can damage smoothtop and can break due to sudden change in temperature.

5. Utensil Handles Should be Turned Inward and Not Extend Over Adjacent Surface Units—To reduce the risk of burns, ignition of flammable materials, and spillage due to unintentional contact with the utensil, the handle of a utensil should be positioned so that it is turned inward, and does not extend over adjacent surface units.

Important Safety Information

OVENS

1. Use Care When Opening Door—Let hot air or steam escape before removing or replacing food.

2. Do Not Heat Unopened Food Containers—Buildup of pressure may cause container to burst and result in injury.

3. Keep Oven Vent Ducts Unobstructed.

4. Placement of Oven Racks—Always place oven racks in desired location while oven is cool. If rack is removed while oven is hot, do not let potholder contact hot heating element in oven.

SELF-CLEANING OVENS

1. Do Not Clean Door Gasket—The door gasket is essential for a good seal. Care should be taken not to rub, damage, or move the gasket.

2. Do Not Use Oven Cleaners—No commercial oven cleaner or oven liner protective coating of any kind should be used in or around any part of the liner.

3. Clean Only Parts Listed in Manual.

4. Before Self-Cleaning the Oven—Remove broiler pan, oven racks, and other utensils.

5. Remove all items from range top and backguard.

GLASS/CERAMIC COOKING SURFACES

1. Do Not Cook on Broken Cooktop—If cooktop should break, cleaning solutions and spillovers may penetrate the broken cooktop and create a risk of electrical shock. Contact a qualified technician immediately.

2. Clean Cooktop With Caution—If a wet sponge or cloth is used to wipe spills on a hot cooking area, be careful to avoid a steam burn. Some cleaners can produce noxious fumes if applied to a hot surface.

VENTILA TION HOODS

1. Clean Ventilation Hoods Frequently—Grease should not be allowed to accumulate on hood or filter.

2. When flaming foods under hood, turn fan off. The fan, if operating, may spread the flame.

In Case of Fire

Fires can occur as a result of over cooking or excessive grease. Though a fire is unlikely, if one occurs, proceed

as follows:

Surface Element Fire

1. Smother the fire with a nonflammable lid or baking soda, or use a Class ABC or BC extinguisher. Not water. Not salt. Not flour.

2. As soon as it is safe to do so, turn the surface controls to “OFF”.

Oven Fires

1. If you see smoke from your oven, do not open oven door.

2. Turn oven control to “OFF”.

3. As an added precaution, turn off power at main circuit breaker or fuse box.

4. Turn on vent to remove smoke.

5. Allow food or grease to burn itself out in oven. Do not open oven door.

6. If smoke and fire persist, call fire department.

7. If there is any damage to components, call an authorized servicer before using range.

Precautions

• Do not cook food directly on range top surface,

always use cookware.

• Do not mix household cleaning products. Chemical

mixtures may interact with objectionable or even hazardous results.

• Do not put plastic items on warm cooking areas. They

may stick and melt.

• Do not slide rough objects across range top surface.

Scratching or metal marking can result.

• Do not use cookware with rough bottoms. They may

scratch smoothtop surface. Glass and ceramic cookware should not be used.

• Do not use damp sponge or dishcloth to clean range

top. A film of soil-laden detergent water may collect on range top. If this should happen, Amana Cleaning Conditioning Cream removes this type of stain.

• Do not leave fat heating unless you remain nearby. Fat

can ignite if overheated by spilling onto hot surfaces.

• Do not allow pots to boil dry as this can cause damage

to cooking surface and pan.

• Do not use range top surface as a cutting board.

• Do not use range for storage or as a display counter.

Important Safety Information

Product Safety Devices

Safety devices and features have been engineered into the product to protect consumer and servicer. Safety devices must never be removed, bypassed, or altered in such a manner as to defeat the purpose for which they were intended.

Grounded Oven Frame Ground prong on power

cord is connected to the frame, usually a green lead fastened by a screw. Any part or component capable of conducting an electric current is grounded by its mounting.

If any ground wire, screw, strap, nut, etc. is removed for service, it must be reconnected to its original position with original fastener before the range is put into operation. Failure to do so can create a possible shock hazard.

General Information

This manual provides basic instructions and suggestions for handling, installing and servicing electric ranges.

The directions, information, and warnings in this manual are developed from experience and careful testing of the product. If the unit is installed according to this manual, it will operate properly and will require minimal servicing. A

This manual contains information needed by authorized service technicians to install and service electric ranges. There may be, however, some parts which need further explanation. Refer to the Installation Instructions, Use and Care, Technical Sheets or the toll-free technical support line.

unit in proper operating order ensures the consumer all the benefits provided by clean, modern electric cooking.

Cooking Nomenclature

J E S 9 8 6 0 B A W

Color

A Almond on Almond

Brand

A Amana C Magic Chef G Graffer &

Sattler

H Hardwick

J Jenn-Air M Maytag N Norge U Universal

Y Crosley

Fuel

B Butane D Dual Fuel

E/J Electric

G Gas, Natural

L Liquid Propane

M Microwave

P Standing Pilot X No Fuel

W Warming Drawer

Product Type

A Accessory/Cartridge C Cooktop Updraft/Countertop D Downdraft Cooktop or Warming Drawer E Eyelevel Range

G Grill

L Range (20")

M Range (36")

P Drop In (24") Q Wall Oven (27") R Range, Free-Standing (30")

S Slide-In (30")

T Range Hood

V OTR

W Wall Oven

Y RV Range

Z RV Top

B Black C Brushed Chrome H Traditional White

L Traditional Almond P Prostyle Q Monochromatic Bisque S Stainless T Traditional Bisque W White on White F Frost White (True Color White) N Natural Bisque (True Color Bisque)

Listing

A UL/AGA C CSA/CGA/CUL D Dual Listed G 220-240 V / 50-60 Hz

M Military Model

P PSB Approved

(Singapore)

X Export 120 V / 60 Hz

Productio n Code

This identifies the production version.

Feature Content

1000-3999 Brands 4000-6999 Maytag/Amana 7000-9999 Jenn Air

General Information

Specifications

Refer to individual Technical Sheet for specification information.

Placement of the Oven

This freestanding range must be placed in the kitchen or comparable room. All safety guidelines must be followed and free air flow around the range is essential.

Do Not Block Air Vents

All air vents must be kept clear during cooking. If air vents are covered during operation, the oven may overheat. If this occurs, a sensitive, thermal safety device automatically removes power to the oven, rendering the oven inoperable. The oven will remain in this state until it has sufficiently cooled.

Location of Model Number

To request service information or replacement parts, the service center will require the complete model, serial, and manufacturing number of your slide-in range. The number can be found on the oven chassis behind the front Access Panel or behind the Warming Drawer along the front frame. Remove the front Access Panel or pull out the Warming Drawer to view the data.

Model Number

Access Panel

For a permanently connected appliance: This appliancemust be connected to a grounded, metallic, permanent wiring system, or an equipment grounding conductor should be run with the circuit conductors and connected to the equipment grounding terminal or lead on the appliance.

Model Identification

Complete enclosed registration card and promptly return. If registration card is missing:

• For Jenn-Air product call 1-800-536-6247 or visit the Web Site at www.jennair.com

• For Maytag product call 1-800-688-9900 or visit the Web Site at www.jennair.com

• For Amana product call 1-800-843-0304 or visit the Web Site at www.jennair.com

• For product inCanada call 1-800-688-2002.

When contacting provide product information located on rating plate. Record the following: Model Number: ___________________ Manufacturing Number: ___________________ Serial or S/N Number: ___________________ Date of purchase: ___________________ Dealer’s name and address: ___________________

Service

Keep a copy of sales receipt for future reference or in case warranty service is required. To locate an authorized servicer:

• For Jenn-Air/Maytag product call 1-800-462-9824 or visit the Web Sites at www.jennair.com or www.maytag.com

• For Amana product call 1-800-628-5782 or visit the Web Site at www.amana.com

• For product inCanada call 1-800-688-2002.

Warranty service must be performed by an authorized servicer. We also recommend contacting an authorized servicer, if service is required after warranty expires.

Grounding Instructions

This appliance must be grounded. If an electrical short circuit occurs, grounding reduces the risk of electric shock by providing an escape wire for the electric current. The cord for this appliance has a grounding wire with a grounding plug. Put the plug into an outlet that is properly installed and grounded.

WARNING

To avoid risk of electric shock, personal injury or death, use grounding plug properly.

Ask a qualified electrician if you do not understand the grounding instructions or if you have questions when grounding the appliance. Keep the electrical power cord dry and keep it from getting crushed or pinched.

Parts and Accessories

Purchase replacement parts and accessories over the phone. To order accessories for your product call:

• For Jenn-Air product call 1-800-536-6247 or visit the Web Site at www.jennair.com

• For Maytag product call 1-800-688-9900 or visit the Web Site at www.jennair.com

• For Amana product call 1-800-843-0304 or visit the Web Site at www.jennair.com

• For product inCanada call 1-800-688-2002.

Extended Service Plan

We offer long-term service protection for this new oven.

• Asure™ Extended Service Plan is specially designed to supplement Maytag and Amana’s strong warranties. These plans cover parts, labor, and travel charges. Call 1-866-232-6244 for information.

• Dependability PlusSM Extended Service Plan is specially designed to supplement Jenn-Air’s strong warranty. This plan covers parts, labor, and travel charges. Call 1-800-925-2020 for information.

Range Description

Cooking Surface

Downdraft Vent

Infinite Switches

Electronic Controls

Oven Cavity: Broil Element Convection Element Bake Element Convection Fan Baking Racks Temperature Probe

Access Panel: Model Number Rating Label

Troubleshooting Procedures

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

WARNING

Troubleshooting Chart

Problem Possible Cause Correction

Open bake element ..................................

No bake element operation

No broil element operation

Oven not operating

Clock and timer not working

Oven light does not operate

Oven door will not unlock

Oven smokes/odor first few times of usage

Surface element doesn’t heat

Self-clean cycle not working Programming error....................................

Frequent cycling of surface element or warming zone

Loose wire connection or broken wire ......

Open bake relay .......................................

Open broil element ...................................

Loose wire connection or broken wire ......

Open broil relay ........................................

Programming error....................................

Power outage............................................

Unit in Sabbath mode ...............................

Power outage............................................

Electronic Control locked..........................

Failed oven lamp ......................................

Failed wiring..............................................

Failed light socket .....................................

Oven is self-cleaning ................................

Oven is still hot .........................................

Normal ......................................................

Open element ...........................................

Loose wire connection or broken wire ......

Failed infinite switch..................................

Door lock...................................................

Normal ......................................................

• Check element for continuity, replace if failed.

• Verify all connections are clean and tight, replace broken wire.

• Verify 240 VAC at bake element.

• Check element for continuity, replace if

failed.

• Verify all connections are clean and tight, replace broken wire.

• Verify 240 VAC at broil element.

• Switch circuit breaker off to oven for

five minutes and try oven again.

• Verify power is present at unit and circuit breaker is not tripped.

• Refer to Use & Care manual and remove unit from Sabbath mode.

• Verify power is present at unit and circuit breaker is not tripped.

• Replace household fuse, but do not fuse capacity.

• Refer to Use and Care manual and unlock electronic control.

• Check lamp and replace is necessary.

• Check for broken, loose or dirty

connections.

• Check light socket for continuity.

• Allow cycle to complete.

• Will not unlock until unit has cooled to

safe temperature. Do not force door open, this will void warranty. Blow cool air on door latch to quicken process.

• Minor smoking or odor is normal the first few times of oven usage.

• Ventilate area well and perform selfclean cycle.

• Check element for continuity, replace if failed.

• Verify all connections are clean and tight, replace broken wiring.

• Check infinite switch, replace if failed.

• Turn off circuit breaker for five minutes

and try oven again.

• Verify door lock energizes & engages.

• Element cycles to maintain proper heat

and to prevent damage to smoothtop.

10 16026926

Troubleshooting Procedures

WARNING

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

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

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

Failure Mechanism

4th Digit : Oven

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

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 Chart

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° F

1d21 Locked runaway temperature – 950° F

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

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).

Troubleshooting Procedures

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

WARNING

Oven Sensor, Meat Probe and Cooling Fan Temperature Charts

Sensor Type: RTD 1000 Ω platinum 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

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

MODE FAN ON TEMP F (C) FAN OFF TEMP F (C)

Bake 300 (148.9) 275 (135)

Broil Immediately 275 (135)

Clean Immediately 275 (135)

COOLING FAN TEMPERATURES

OVEN SENSOR

MEAT PROBE

12 16026926

Testing Procedures

WARNING

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

Component Testing Procedures

Illustration Component Test Procedure Results

COM N

(JES8850BC*,

JES9900BC*)

Coil

Ter mi n al s

Oven light & housing Disconnect connector and test

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

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

Remote relay Infinite switch in the following positions:

On (any setting) ...................................

Off........................................................

Top power relay

Power applied:

Pins 1 (NC) and 7 ................................

Pins 3 (NC) and 9 ................................

Power not applied:

Pins 1 (NC) and 4 (NO) ........................

Pins 3 (NC) and 6 (NO) ........................

Pins A to B...............................................

Indicator lights Measure voltage at indicator light ............

Rocker switch Measure continuity of switch positions:

Open....................................................

Closed..................................................

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

positions:

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

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

Hidden bake element Disconnect wiring to element and

measure cold resistance of terminals ......

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

Bake element Disconnect wiring to element and

measure cold resistance of terminals ......

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

Broil element Disconnect wiring to element and

measure cold resistance of terminals ......

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

Warmer element Disconnect wiring to element and

measure cold resistance of terminals ......

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

Convection element Disconnect wiring to element and

measure cold resistance of terminals ......

Measure voltage at convect element.......

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).

Continuity. Continuity.

Continuity. Continuity. 24 VDC when power applied. If voltage is present and light does not work, replace light. If voltage is not present at indicator light, check wiring.

Infinite. Continuity.

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).

Approx. 20 . 240 VAC.

Approx. 22 . 240 VAC.

Approx. 12.5 to 18 . 240 VAC.

Approx. 12.5 to 18 . 120 VAC.

Approx. 16.5 . 240 VAC.

Testing Procedures

WARNING

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

Illustration Component Test Procedure Results

(JES8750BA*)

(JES8850B**)

(JES9860B**, JES9800BA*,

JES9900B**)

(JES9750BA*)

Convection motor, 2-speed

Oven limit switch Normally closed, verify operation:

Hi-limit temperature switch (Warming Drawer)

Ribbon element, 1200 W

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

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

Open: 208° to 222° F (98° to 105° C) ... Closed: 156° to 174° F (69° to 79° C) ..

Open: 130° to 140° F (54° to 60° C).......

Closed: 109° to 121° F (43° to 50° C) ....

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

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

Open: 208° to 222° F (98° to 105° C).....

Closed: 156° to 174° F (69° to 79° 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)......

Disconnect wiring to element and

measure cold resistance of terminals.....

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

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.

Approx. 44 to 49 . 240 VAC.

Ribbon element, Dual, 2400 W (1200 W inner, 1200 W outer)

Ribbon element, Dual, 3000 W (1400 W inner, 1600 W outer)

Ribbon element, Triple, 3000 W (1000 W inner, 2000 W middle 2700 W outer)

Disconnect wiring to element and

measure cold resistance of terminals.....

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

Disconnect wiring to element and

measure cold resistance of terminals.....

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

Disconnect wiring to element and

measure cold resistance of terminals.....

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

Inner: Approx. 44 to 49 . Outer: Approx. 44 to 49 .

240 VAC.

Inner: Approx. 38 to 42 . Outer: Approx. 34 to 37 .

240 VAC.

Inner: Approx. 52 to 57 . Middle: Approx. 25 to 29 . Outer: Approx. 19 to 24 .

240 VAC.

Testing Procedures

WARNING

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

Illustration Component Test Procedure Results

Ribbon element,100 W

Ribbon element, Dual, 3000 W (1400 W inner, 1600 W outer)

Ribbon element, 2500 W

1 H1

Infinite switch, low heat

Infinite switch

Infinite switch, custom control

Disconnect wiring to element and

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

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

Disconnect wiring to element and

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

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

Disconnect wiring to element and

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

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

Remove wiring from H1 and H2. Connect volt/ohms meter to H1 and H2. Measure the following for voltages at LO,

MED, HI:....................................................

Voltage between H1 and H2 ......................

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 ......................

Single/dual element temp settings.............

Voltage between L1 and L2 ...... 240 VAC.

Approx. 133 to 147 . 120 VAC.

Inner: Approx. 38 to 42 . Outer: Approx. 34 to 37 .

240 VAC.

Approx. 21 to 24 .

240 VAC.

Approximate

Time On Time Off

SIMMER 5% 95% MED (5) 55% 45% HI 100% 0%

240 VAC.

Approximate

Time On Time Off

SIMMER 5% 95% MED (5) 35% 65% HI 100% 0%

240 VAC.

Infinite switch

Dual element infinite switch

Temperature sensor Measure resistance ...................................

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

Remove wiring from H1 and H2. Connect volt/ohms meter to H1 and H2. Measure the following for voltages at LO, MED, HI: .

Voltage between H1 and H2 ......................

Time On Time Off

SIMMER 5% 95% MED (5) 35% 65% HI 100% 0% 240 VAC.

Approximate

Remove wiring from S1 and S2. Connect volt/ohms meter to S1 and S2

and measure voltages at LO, MED, HI ......

Voltage between S1 and S2 ......................

Time On Time Off

SIMMER 5% 95% MED (5) 45% 55% HI 100% 0%

240 VAC.

Approximate

Approx. 1000  at room temperature, 75° F (23.8° C).

120 VAC.

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

No continuity.

RPM: Approx. 1670 to 2070.

Testing Procedures

WARNING

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

Illustration Component Test Procedure Results

Downdraft motor

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

Coil element, 1250 W, 4-turn

Coil element, 2100 W, 5-turn

Ribbon element, 1800 W

Ribbon element, 1200 W

Grill assembly Disconnect wiring to element and

Electronic control NOTE: To avoid equipment damage,

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

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

Disconnect wiring to element and

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

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

Cartridge JEA7000AD*

Disconnect wiring to element and

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

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

Cartridge JEA7000AD*

Disconnect wiring to element and

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

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

Cartridge JEA8120AD*

Disconnect wiring to element and

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

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

Cartridge JEA8120AD*

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

Measure voltage at grill element ................

use caution when checking electronic control circuitry voltages.

120 VAC. No continuity. RPM: 1550

Approx. 42 to 48 . 240 VAC

Approx. 25 to 28 . 240 VAC

Approx. 29.5 to 33.5 . 240 VAC

Approx. 44.5 to 48.5 . 240 VAC

Approx. 30 . 240 VAC.

Cooling Fan Temperatures

MODE FAN ON TEMP F (C) FAN OFF TEMP F (C)

Bake 300 (148.9) 275 (135)

Broil Immediately 275 (135)

Clean Immediately 275 (135)

COOLING FAN TEMPERATURES

Testing Procedures

WARNING

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

Control Testing Procedures

Switch Membrane Assembly Test Procedure Resul ts

Pad

1 2 3 4 5 6 7 8 9 0 Cancel Bake Broil Clean Favorites More Options Warm Zone 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 Warm Drawer Warm Zone More Options Setup ATM 1 ATM 2 Back Enter Timer 1 Timer 2 Oven Light

JES8750BA*

JES8850BA*

Closed circuitry resistance (defined as continuity): 2000 Max  Pins 1 & 6 are shorted together for control configuration purposes

Trace # 1

Latch See Detail B

Detail B

Closed circuitry resistance (defined as continuity): 2000 Max  Pins 1 & 9 are shorted together for control configuration purposes

Trace # 1

Latch See Detail B

Detail B

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 & 8 5 & 12 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 & 12 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

Measurement

Testing Procedures

WARNING

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

Switch Membrane Assembly Test Procedure Results

JES8850BC*

JES9750BA*

Closed circuitry resistance (defined as continuity): 2000 Max  Pins 1 & 9 are shorted together for control configuration purposes

Trace # 1

Latch See Detail B

Detail B

Closed circuitry resistance (defined as continuity): 2000 Max  Pins 1 & 11 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 Warm Zone 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 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 & 9 5 & 7 4 & 12 5 & 10 5 & 12 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 & 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 Continuity Continuity

Measurement

Testing Procedures

WARNING

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

Switch Membrane Assembly Test Procedure Results

JES9860BA*

JES9860BC* JES9900BC*

Closed circuitry resistance (defined as continuity): 2000 Max  Pins 1 & 10 are shorted together for control configuration purposes

Trace # 1

Latch

See Detail B

Detail B

Closed circuitry resistance (defined as continuity): 2000 Max  Pins 1 & 10 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

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

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

Testing Procedures

WARNING

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

Switch Membrane Assembly Test Procedure Results

JES9800BA*, JES9900BA*

Closed circuitry resistance (defined as continuity): 2000 Max  Pins 1 & 10 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 Clean Convect 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 & 7 5 & 9 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

Electronic Oven Control (EOC) III Testing Procedures

ELECTRONIC OVEN CONTROL III TESTING/PROGRAMMING PROCEDURES

Feature Access Procedure Modification Procedure

Control Reset

Resets control to factory default values.

Oven Temperature Adjustm ent

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 SERVICE displays. Press the left ATM pad to select SERVICE menu options.

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.

Warm Drawer

ATM PADS

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. 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.

Testing Procedures

WARNING

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

Feature Access Procedure Modification Procedure

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

Based 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.

208/240 V Setting

Determines range operating voltage (208 or 240 VDC).

Cook Tones

Determines the number and duration of cook time reminder chimes.

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. 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 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.

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.

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