GE JT3800DH1BB Technical Service Manual

GE Appliances

General Electric Company

Louisville, Kentucky 40225

31-9239

Combination Wall Oven

Technical Service Guide

March 2015

GE Appliances

27”

JK3800DH1BB

JK3800DH1WW

JK3800SH1SS

JK3800DH2BB

JK3800DH2WW

JK3800SH2SS

30”

JT3800DH1BB

JT3800SH1SS

JT3800DH2BB

JT3800SH2SS

PT7800DH1BB

PT7800DH1WW

PT7800SH1SS

PT7800DH2BB

PT7800DH2WW

PT7800SH2SS

PT9800SH1SS

PT9800SH2SS

CT9800SH1SS

– 2 –

IMPORTANT SAFETY NOTICE

The information in this service guide is intended for use by

individuals possessing adequate backgrounds of electrical,

electronic, and mechanical experience. Any attempt to repair a

major appliance may result in personal injury and property

damage. The manufacturer or seller cannot be responsible for the

interpretation of this information, nor can it assume any liability in

connection with its use.

WARNING

To avoid personal injury, disconnect power before servicing

this product. If electrical power is required for diagnosis or test

purposes, disconnect the power immediately after performing the

necessary checks.

RECONNECT ALL GROUNDING DEVICES

If grounding wires, screws, straps, clips, nuts, or washers used to

complete a path to ground are removed for service, they must be

returned to their original position and properly fastened.

GE Appliances

Technical Service Guide

in any form without written permission from the General Electric Company.

– 3 –

Table of Contents

Safety Requirements .....................................................................................................................................................................6

Introduction .......................................................................................................................................................................................8

Additional Service Information ..................................................................................................................................................9

Nomenclature ...................................................................................................................................................................................10

3URGXFW6SHFL¿FDWLRQV ..................................................................................................................................................................11

,QVWDOODWLRQ(OHFWULFDO6SHFL¿FDWLRQV .......................................................................................................................................11

Accessories ................................................................................................................... ......................................................................11

Tools Needed .....................................................................................................................................................................................12

Service Harness Extension ..........................................................................................................................................................13

'H¿QLWLRQV ...........................................................................................................................................................................................14

Installation .........................................................................................................................................................................................15

Owner's Manuals Information ...................................................................................................................................................17

Oven Controls 3800 Series ..................................................................................................................................................18

Oven Controls 7800 Series ..................................................................................................................................................20

Oven Controls 9800 Series ..................................................................................................................................................22

Oven Settings ............................................................................................................................................................................24

Oven Options.............................................................................................................................................................................25

Lower Oven Cooking Modes ..............................................................................................................................................27

Sabbath Mode ..........................................................................................................................................................................29

$LUÀRZ ...................................................................................................................................................................................................31

Speedcook Operation ....................................................................................................................................................................32

Upper Oven Components ............................................................................................................................................................34

Door Assembly .........................................................................................................................................................................34

Control Panel Assembly .......................................................................................................................................................35

Control Boards and Panel Connections ................................................................................................................................36

Removing Upper Oven ..................................................................................................................................................................42

Upper Oven Electrical Components .......................................................................................................................................43

Upper Heater and Oven Cavity TCO's ............................................................................................................................43

Lower Heater Assembly .......................................................................................................................................................43

Humidity Sensor ......................................................................................................................................................................44

Turntable Motor ........................................................................................................................................................................44

– 4 –

Convection Heater Assembly and Thermistor ...........................................................................................................45

Upper Heater Assembly .......................................................................................................................................................45

Blower Assembly .....................................................................................................................................................................46

Convection Heater Element ...............................................................................................................................................47

Convection Fan Motor ..........................................................................................................................................................48

Damper Assembly...................................................................................................................................................................48

Damper Door Switch .............................................................................................................................................................49

Magnetron and Magnetron TCO ......................................................................................................................................49

High Voltage Transformer ...................................................................................................................................................50

Left and Right Door Switch Assemblies ........................................................................................................................50

Noise Filter ..................................................................................................................................................................................53

Surge Board ...............................................................................................................................................................................54

Capacitor and Diode ..............................................................................................................................................................54

Cavity Light ................................................................................................................................................................................55

Proof Feature Upper oven ...................................................................................................................................................55

Microwave Leak Test .............................................................................................................................................................56

Standard Test Load ................................................................................................................................................................56

Demo Mode ...............................................................................................................................................................................57

Schematic Diagram .......................................................................................................................................................................58

Lower Oven Structural Components ......................................................................................................................................59

Door Assembly .........................................................................................................................................................................60

Gasket...........................................................................................................................................................................................61

Vertical Brace ............................................................................................................................................................................61

Lower Oven Electrical Components .......................................................................................................................................64

Cooling Fan Motor ..................................................................................................................................................................64

Cooling Fan Motor Reinstallation.....................................................................................................................................65

L2 High Limit Switch ..............................................................................................................................................................65

Oven Sensor ..............................................................................................................................................................................66

Lock Assembly ..........................................................................................................................................................................66

Elements ......................................................................................................................................................................................67

Hidden Bake ..............................................................................................................................................................................67

Broil ......................................................................................................................... .......................................................................68

– 5 –

Convection Element ...............................................................................................................................................................69

Diagnostics ................................................................................................................... ......................................................................70

Software Versions / Fault Codes ......................................................................................................................................70

Troubleshooting Lower Oven .....................................................................................................................................................71

Accessing Machine Control Board/Bridge Board .............................................................................................................72

Service Mode .............................................................................................................................................................................74

GE Wall Oven Warranty ................................................................................................................................................................76

– 6 –

Safety Requirements

GE Factory Service Employees are required to use safety glasses with side shields, safety gloves and

steel toe shoes for all repairs.

Steel Toed Work Boot

Electrically Rated Glove and

Dyneema® Cut Resistant

Glove Keeper

Dyneema®Cut Resistant

Glove

Plano Type Safety Glasses

Prescription Safety Glasses

Safety Glasses must be ANSI

Z87.1-2003 compliant

Brazing Glasses

Cut Resistant Sleeve(s)

Prior to disassembly of the oven to access components, GE Factory

Service technicians are REQUIRED to follow the Lockout / Tagout

(LOTO) 6 Step Process:

Step 1

Plan and Prepare

Step 4

Apply LOTO device and lock

Step 2

Shut down the appliance

Step 5

Control (discharge) stored energy

Step 3

Isolate the appliance

Step 6

“Try It” verify that the appliance is

locked out

– 7 –

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO

EXCESSIVE MICROWAVE ENERGY.

A. DO NOT OPERATE OR ALLOW THE OVEN TO BE OPERATED WITH THE DOOR OPEN.

B. IF THE OVEN OPERATES WITH THE DOOR OPEN, INSTRUCT THE USER NOT TO OPERATE THE OVEN AND

CONTACT THE MANUFACTURER IMMEDIATELY.

C. MAKE THE FOLLOWING SAFETY CHECKS ON ALL OVENS TO BE SERVICED BEFORE ACTIVATING THE

MAGNETRON OR OTHER MICROWAVE SOURCE, AND MAKE REPAIRS AS NECESSARY:

1. INTERLOCK OPERATION

2. PROPER DOOR CLOSING

3. SEAL AND SEALING SURFACES (ARCING, WEAR AND OTHER DAMAGE)

4. DAMAGE TO OR LOOSENING OF HINGES AND LATCHES

5. EVIDENCE OF DROPPING OR ABUSE

D. BEFORE TURNING ON MICROWAVE POWER FOR ANY TEST OR INSPECTION WITHIN THE MICROWAVE

GENERATING COMPARTMENTS, CHECK THE MAGNETRON, WAVE GUIDE OR TRANSMISSION LINE AND

CAVITY FOR PROPER ALIGNMENT, INTEGRITY AND CONNECTIONS.

E. ANY DEFECTIVE OR MISADJUSTED COMPONENTS IN THE INTERLOCK MONITOR, DOOR SEAL AND

MICROWAVE GENERATION AND TRANSMISSION SYSTEMS SHALL BE REPAIRED, REPLACED OR ADJUSTED

BY PROCEDURE DESCRIBED IN THIS MANUAL BEFORE THE OVEN IS RELEASED TO THE OWNER.

F. A MICROWAVE LEAKAGE CHECK TO VERIFY COMPLIANCE WITH THE FEDERAL PERFORMANCE STANDARD

SHOULD BE PERFORMED ON EACH OVEN PRIOR TO RELEASE TO THE OWNER.

– 8 –

GE’s Updated Combination Wall Ovens

GE has introduced the new versions of 27 inch and 30 inch combination wall ovens. In addition, an

Advantium® model was added to the wall oven line. The Advantium® oven uses Speedcook technology

to harness the power of light. The Advantium® oven cooks the outside of foods much like conventional

radiant heat, while also penetrating the surface so the inside cooks simultaneously. While halogen light is

the primary source of power, a "microwave boost” is added with certain foods. Foods cook evenly and fast,

retaining their natural moisture.

JK3800: 27” with microwave and conventional lower self-clean oven

JT3800: 30” with microwave and conventional lower self-clean oven

PT7800: 30” with convection microwave and convection lower self-clean oven

PT9800/CT9800: 30” with Advantium® oven and convection lower self-clean oven

Common Features:

Menu Driven Control: With 4 line graphical display.

Panelized Cavities: 4.3 cu ft 27” – 5.0 cu ft 30”. Not a serviceable part.

Hinge Receivers: Built into vertical supports.

Cavity Racks: Conventional ribs built into cavity panels (on some models).

Ladder Racks: Rack supports mounted to side panels (on some models).

Latch Assembly: New design, enables door latch pawl to be unlatched if unit fails in LOCKED mode.

Speedcook Oven: Delivers oven quality food up to four times faster than a conventional oven. No preheating

required.

True European Convection Oven: 1500 watt convection oven mode bakes and roasts at temperatures

ranging from 80°F to 450°F.

Sensor Microwave Oven: 975 watt sensor microwave oven mode automatically delivers perfect cooking

results.

Warming Oven: Keeps prepared foods warm and fresh, and retains perfect moistness and crispness.

Proof Feature: Specialized mode allows dough to rise quickly.

16 in. Turntable: Removable metal and glass trays easily handle large casserole dishes.

Rounded Rear Wall: Allows complete turntable rotation of 9 in. x 13 in. casserole dish for even cooking.

Pre-programmed Recipes: Provide quick and easy programming of over 175 Speedcook food selections.

Multi-Level Cooking: Removable rack allows cooking of multiple dishes at once.

Non-Stick Cooking Tray: 16 in. Speedcook tray cleans up easily.

Other Features:

Slide Out Microwave/Advantium® Module: For easier service. An adapter harness is available to enable unit

to be connected and serviced out of oven enclosure.

Service Mode: Available to assist technicians in the repair of the microwave/Advantium® portion of these

ovens.

Introduction

– 9 –

Similar to previous models where a full size microwave was integrated into a 27 in. or 30 in. Wall Oven, the

new design also incorporates a GE Advantium® version.

The ovens are built on the 2013 Wall Oven design, thus servicing them will be the same with a few

exceptions.

• Lower oven does not have a service mode.

• A RJ-45 connector is available for service and/or software updates.

• Only uses Machine Control oven control.

• An added “Bridge Board” is used to communicate between the upper and lower ovens.

• For Microwave or Advantium® service, the upper oven is a “module” that can be slid out for service.

• Service harness extension (Part #: WX05X24267) is available to enable the upper oven to be serviced and

tested outside of its enclosure.

• Time of day display location may change. This is normal operation to preserve display brightness.

This service guide will show the more complex version of the upper oven. The Advantium® model has more

components. The lower oven is based on the present production model of a single wall oven.

Additional Service Information

– 10 –

Nomenclature

Serial Number

The nomenclature breaks down and explains what the letters and numbers mean in the model number. The

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the year repeats every 12 years.

Example: LA123456S = June, 2013

A – JAN

D – FEB

F – MAR

G – APR

H – MAY

L – JUN

M – JUL

R – AUG

S – SEP

T – OCT

V – NOV

Z – DEC

2024 – Z

2023 – V

2022 – T

2021 – S

2020 – R

2019 – M

2018 – L

2017 – H

2016 – G

2015 – F

2014 – D

2013 – A

The mini manual is

located behind the middle

oven trim.

The nomenclature plate is

located on the left hand

side of the oven cavity.

– 11 –

3URGXFW6SHFL¿FDWLRQV

kW Rating kW Rating Circuit Size

240V 208V (Dedicated)

N: N: 20 amps

4.9 kW – 7.2 kW 4.2 kW – 6.2 kW 30 amps

7.3 kW – 9.6 kW 6.3 kW – 8.3 kW 40 amps

9.7 kW – 12.0 kW 8.4 kW – 10.4 kW 50 amps

Highlighted circuit size is recommended for all Micro/Advantium® units.

DO NOTVKRUWHQWKHÀH[LEOHFRQGXLW7KHFRQGXLWVWUDLQUHOLHIFODPSPXVWEHVHFXUHO\DWWDFKHGWRWKH

MXQFWLRQER[DQGWKHÀH[LEOHFRQGXLWPXVWEHVHFXUHO\DWWDFKHGWRWKHFODPS,IWKHÀH[LEOHFRQGXLWZLOOQRW¿W

within the clamp, do not install the oven until a clamp of the proper size is obtained.

The three power leads supplied with this appliance are suitable for connection to heavier gauge household

wiring. The insulation of these three leads is rated for temperatures much higher than the temperature rating

of the household wiring. The current-carrying capacity of the conductor is governed by the wire gauge and

the temperature rating of the insulation around the wire.

Accessories

DWO 72” length – Optional conduit for service WB18T10580

Small Broiler Pan (8 3/4” x 1 1/4” x 13 1/2”) WB48X10055 (US) 222D2097G001 (Canada)

Large* Broiler Pan (12 3/4” x 1 1/4” x 16 1/2”) WB48X10056 (US) 222D2097G002 (Canada)

XL** Broiler Pan (17” x 1 1/4” x 19 1/4“) WB48X10057 (US) Not available in Canada

7KHODUJHEURLOHUSDQGRHVQRW¿WLQµµUDQJHV

7KH;/EURLOHUSDQGRHVQRW¿WLQµZDOORYHQVµGURSLQVRUµµUDQJHV

Cleaning/Lubrication Supplies

CitruShine Stainless Steel Wipes WX10X10007

CeramaBryte Stainless Steel Appliance Cleaner PM10X311

*UDSKLWH/XEULFDQW³IRUUDFNVOLGHV   WB02T10303

,QVWDOODWLRQ(OHFWULFDO6SHFL¿FDWLRQV

– 12 –

Tools Needed

*To enable service of the upper

oven without removing the

complete wall oven from the

installation.

• Phillips head screwdriver or bit

• 1/4” hex head nut driver or socket

• 3/8” socket wrench

• 7 mm socket or wrench

• T10 Torx bit

• T20 Torx bit

• Upper oven door removal tool. WB01X10364 included with replacement door assembly.

Special Tools

No special tools are required to service these units. Upper oven screws are primarily Phillips head, and lower

oven screws are 1/4 in. hex head or T20. The screw mounting the fad board on the lower oven is a T10, and

the LH threaded nut on the convection blade is 3/8 inches.

• Service Harness Extension Part #: WX05X24267

$WRROWRDVVLVWWKHXQODWFKLQJRIDORFNHGGRRUFRXOGEHPDGHXSIURPDSLHFHRIVWLȺZLUHDPHWDOFRDW

hanger, or a piece of brazing solder. Be sure to cover with tape to prevent scratching of the door or trim.

– 13 –

To enable testing the upper oven, outside of enclosure, use the Service Harness Extension (WX05X24267).

This 6 foot cable consists of a 2 wire communications cable along with a 3 wire AC cable.

Service Harness Extension

Lower Oven Upper Oven

– 14 –

'H¿QLWLRQV

Machine Control: A separate control board that contains all relays and communicates with the User

Interface to control all outputs. The Machine Control is located behind the control panel housing.

User Interface: A LOGIC board that interprets customer input from the keypanel.

Bridge Board: An interface board that communicates between the User Interface, Machine Control and

Microwave Controls.

Glass Touch: A capacitive glass panel that transfers key pad touches to the User Interface board. It is

connected by a harness to the Machine Control. The User Interface plugs directly into the Glass Touch

assembly.

Thermal Limit Switch: These temperature operated switches provide a safety back-up in case of a

thermal “run-away”. All are “one-shot” and will need replacement if they open. Check for the cause of over

temperature!

FAD - Fan Apparency Device: In previous models, these were temperature operated devices that would

open a circuit if the area got over temperature. Current production models use FAD boards that monitor

cooling fan speeds; the control will shut down operation if fan speed is not within valid range. The boards will

also log a F96, F97, F98 or F99 code. This operates like a miniature tachometer.

SWO: Single Wall Oven

DWO: Double Wall Oven

DLB: A relay to isolate elements from L2, must close for all heating cycles.

– 15 –

Installation

CUTOUT FOR DOUBLE OVENS (with Upper Microwave Oven)

NOTE: If the cabinet does not have a front frame and the sides are less than 3/4” (1.9 cm) thick, shim both

sides equally to establish the cutout width.

Dim. Description 27” Oven with Microwave 30” Oven with Microwave

A Cabinet Width 27” (68.6 cm) 30” (76.2 cm)

B Cutout Width 25” (63.5 cm) min.

25 1/4” (64.1 cm) max.

28 1/2” (72.4 cm) min.

28 5/8” (72.7 cm) max.

C Cutout Height 41 1/8” (104.5 cm) min.

41 1/4” (104.8 cm) max.

42 3/16” (107.2 cm) min.

42 1/4” (107.3 cm) max.

D Overlap of Oven Over Side Edges of

Cutout

1” (2.5 cm) 11/16” (1.75 cm)

E Clearance to Adjacent Corners,

Drawers, Walls, etc., When Door Is

Open

23” (58.4 cm) min. 23” (58.4 cm)

F Overlap of Oven Top of Cutout 1” (2.5 cm) min. 1” (2.5 cm) min.

G Overlap of Oven Bottom of Cutout 1” (2.5 cm) min. 1 1/4” (3.2 cm)

H Junction Box Location 8 3/4” (22.2 cm) max. right

side only

9 1/2” (24.1 cm) max. right

side only

– 16 –

SECURING UPPER MICROWAVE/ADVANTIUM® OVEN TO CABINET

For double oven with microwave or Advantium® upper ovens. Secure a wooden cleat to side of cabinet so

that the upper oven can be secured to the cleat with provided screws.

SHIPPING SCREWS REMOVAL (FOR 30" DOUBLE WALL

OVEN WITH UPPER MICROWAVE OVEN ONLY)

Shipping screws must be removed as shown in

illustration. A 1/4 in. nut driver is needed.

INSTALL MOUNTING SCREWS (UPPER MICROWAVE OVEN)

• Slide the oven the remaining way into the opening so

WKDWWKHVLGHÀDQJHVDQGFRQWUROSDQHODUHDJDLQVWWKH

cabinet frame. Make sure that the oven is centered in the

opening.

• Open the door, place a turntable tray in the oven and

make sure that the tray in the unit is level.

• 'ULOOSLORWKROHVWKURXJKWKHVLGHÀDQJHV

• 'ULYHWKHFRORUPDWFKHGVFUHZVLQWRWKHVLGHÀDQJHV,WLV

recommended that the screws be hand tightened.

27” Cabinet requirements

• No shims (or cleats) required when cabinet is in

minimum width condition.

• If cabinet is at maximum width condition, add

wood shims to bring cabinet to minimum

condition.

30” Cabinet requirements

• No shims (or cleats) required when cabinet is in

minimum width condition.

• ,IFDELQHWLVDWPD[LPXPZLGWKFRQGLWLRQ¿[WKH

wood cleats as shown in illustration.

– 17 –

Owner's Manuals Information

Owner’s Manuals (available on website)

• 49-80737: JK3800

• 49-80737: JT3800

• 49-80738: PT7800

• 49-80741: PT9800

– 18 –

Common Controls

1. 7LPHU2Q2ȹ: Works as a countdown timer.

3UHVVWKH7LPHU2Q2ȺSDGVHOHFWWKHWLPHUW\SH

(hours and minutes or minutes and seconds),

use the selector dial to set the time, and press

the selector dial to start the timer countdown.

The oven will continue to operate when the

timer countdown is complete. To turn the timer

RȺSUHVVWKH7LPHU2Q2ȺSDG

2. Settings/Lock Controls: Find oven options

for: Help, Clock Settings, Display Mode, Auto

&RQYHUVLRQ$XWR6KXW2Ⱥ%HHSHU9ROXPH

Reminder, Temperature Units, Thermostat Adjust

and Oven Information under this selection. See

the Oven Settings section of this guide for more

details. Press and hold the Settings pad for 3

seconds to lock or unlock the controls. This

locks out the control so that pressing any of

the control pads does not activate the feature.

&OHDU2ȺLVDOZD\VDFWLYHHYHQZKHQWKH

control is locked.

3. Selector Dial: The selector dial is used for both

the upper and lower ovens. Rotate dial to select

oven settings, upper/lower oven options and

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selection. Rotate dial to increase or decrease

WHPSHUDWXUHVRUWLPHDQGWKHQSUHVVWRFRQ¿UP

the set temperature or time.

4. Back: Press this pad to go back a menu level in

the display.

5. Start/Pause: Press the Start/Pause pad to start

any cooking, clean or timed function. Press

the Start/Pause pad to pause any upper oven

features.

6. Display: Information about both the upper and

lower ovens is shown in this display window.

Upper Oven Controls

7. Microwave: Press the Microwave pad for

microwaving options. Use the selector dial to

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the selector dial to select it. Options available

include Cook by Time, Cook, Defrost, Beverage,

Popcorn, Melt, Reheat, Simmer and Soften.

Use the clear glass tray and microwave-safe

cookware when using the microwave features.

See the Upper Oven: Microwaving section in

this guide for more detail.

8. Add 30 Sec: Press the Add 30 Sec pad for 30

seconds of microwave cooking time. Each time

this pad is pressed an additional 30 seconds is

added to the remaining cooking time. The oven

starts immediately.

9. Defrost: Press the Defrost pad to defrost;

rotate selector dial to select the type of defrost

and press to select. Types of defrost available

include; Defrost by Food Type, Defrost by Time,

Defrost by Weight, 1.0 lb. Quick Defrost, Melt,

and Soften. See the Microwaving section for

more information.

10. Reheat: Press the Reheat pad to reheat; rotate

selector dial to select food type to reheat and

press to select. Types of food available under

the Reheat feature include; Beverage, Casserole,

Chicken, Pasta, Pizza, Plate of Food, Rice, Soup,

Steaks/Chops, and Vegetables.

11. Popcorn: Press the Popcorn pad to microwave

popcorn; press the selector dial to select.

Popcorn feature is a microwave sensor feature

and automatically senses when popcorn is

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Features twice in succession on the same food

portion.

Oven Controls 3800 Series

(Continued next page)

– 19 –

12. &OHDU2ȹ7KH&OHDU2ȺSDGFDQFHOV$//XSSHU

oven programs except the clock and timer.

Lower Oven Controls

13. Light: Press the Light pad to turn the oven light

RQRURȺLQWKHORZHURYHQ1RWHWKDWOLJKWLQ

the lower oven will not turn on if the oven is in a

clean mode.

14. Bake: Press the Bake pad to bake; rotate

selector dial to select baking temperature and

press to select.

15. Broil: Press the Broil pad to broil; rotate selector

dial to select Hi/Lo and press to select.

16. Options: Find the Delay Start, Proof, Sabbath,

Self Clean, Steam Clean and Warm features

under this selection. See the Oven Options

section for more details.

17. Warm: Press the Warm pad to warm; press the

selector dial to select. Do not use Warm to cook

or heat cold food. See the Lower Oven Cooking

Mode section for more information.

18. &OHDU2ȹ7KH&OHDU2ȺSDGFDQFHOV$//ORZHU

oven programs except the clock and timer.

Oven Controls 3800 Series continued

– 20 –

Oven Controls 7800 Series

Common Controls

1. 7LPHU2Q2ȹ: Works as a countdown timer.

3UHVVWKH7LPHU2Q2ȺSDGVHOHFWWKHWLPHUW\SH

(hours and minutes or minutes and seconds),

use the selector dial to set the time, and press

the selector dial to start the timer countdown.

The oven will continue to operate when the timer

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2. Settings/Lock Controls: Find oven options

for: Help, Clock Settings, Display Mode, Auto

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Reminder, Temperature Units, Thermostat Adjust

and Oven Information under this selection. See

the Oven Settings section of this guide for more

details. Press and hold the Settings pad for 3

seconds to lock or unlock the controls. This

locks out the control so that pressing any of

the control pads does not activate the feature.

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is locked.

3. Selector Dial: The selector dial is used for both

the upper and lower ovens. Rotate dial to select

oven settings, upper/lower oven options and

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selection. Rotate dial to increase or decrease

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the set temperature or time.

4. Back: Press this pad to go back a menu level in

the display.

5. Start/Pause: Press the Start/Pause pad to start

any cooking, clean or timed function. Press

the Start/Pause pad to pause any upper oven

features.

6. Display: Information about both the upper and

lower ovens is shown in this display window.

Upper Oven Controls

7. Microwave: Press the Microwave pad for

microwaving options. Use the selector dial to

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the selector dial to select it. Options available

include Cook by Time, Cook, Defrost, Beverage,

Popcorn, Melt, Reheat, Simmer and Soften.

Use the clear glass tray and microwave-safe

cookware when using the microwave features.

See the Upper Oven: Microwaving section in

this guide for more detail.

8. Add 30 Sec: Press the Add 30 Sec pad for 30

seconds of microwave cooking time. Each time

this pad is pressed an additional 30 seconds is

added to the remaining cooking time. The oven

starts immediately.

9. Defrost: Press the Defrost pad to defrost; rotate

selector dial to select the type of defrost and

press to select. Type of defrost available include:

Defrost by Food Type, Defrost by Time, Defrost

by Weight, 1.0 lb. Quick Defrost, Melt, and

Soften. See the Microwaving section for more

information.

10. Convection Bake: Press the Convection Bake

pad to convection bake in the upper oven.

Place food or oven safe dish on the glass tray

when using the convection bake feature. When

convection baking on two levels, place food or

oven safe dish on the wire oven rack and place

them on the glass tray. See the Upper Oven:

Baking section of this guide for more detail.

11. Cooking Options: Find the Repeat Last, Proof

and Warm features under this selection. See the

Oven Options section for more details.

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oven programs except the clock and timer.

(Continued next page)

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GE JT3800DH1BB Technical Service Manual

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