Maytag MGR6875ADB-Q-S-W, MGR6775ADB-Q-S-W User Manual

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.

Freestanding

Double Oven

Gas 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:

MGR6775ADB/Q/S/W

MGR6875ADB/Q/S/W

16023415 August 2004

©2004 Maytag Services

Important Information

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 RESPONSIBILITY TO

REVIEW ALL APPROPRIATE SERVICE INFORMATION BEFORE BEGINNING REPAIRS.

Important Notices for Servicers and Consumers

!WARNING

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:

Customer Service Support Center

CAIR Center
Web Site	Telephone Number
WWW.MAYTAG.COM .............................................	1-800-688-9900
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.

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Table of Contents
Important Information ....................................................	2
Safety Information
Safety Practices for Servicer ....................................	4
Servicing ..................................................................	4
Receiving Oven ........................................................	5
Using the Oven ........................................................	5
Baking, Broiling, and Roasting .................................	6
Connecting Range to Gas ........................................	6
Electrical Requirements ...........................................	6
Extension Cord ........................................................	6
Product Safety Devices ............................................	6
General Information
Cooking Nomenclature .............................................	7
Specifications ..........................................................	8
Placement of the Oven .............................................	8
Location of Model Number ........................................	8
Model Identification ..................................................	8
Service .....................................................................	8
Parts and Accessories .............................................	8
Extended Service Plan .............................................	8
Grounding ................................................................	9
Range Description ...................................................	10
Troubleshooting Procedures
Control System Troubleshooting .............................	11
Component Troubleshooting ....................................	14
Component Testing Procedures ...................................	17
Quick Test Mode .....................................................	22

Disassembly Procedures
Moving and/or Replacing Range ..............................	24
Leveling Legs ..........................................................	24
Anti-Tip Bracket ......................................................	24
Top Burner ..............................................................	24
Side Panel ..............................................................	24
Maintop Removal .....................................................	24
Top Surface Valve and Spark Switch .......................	24
Shut-Off Valve .........................................................	24
Top Burner Lower Assembly ...................................	24
Manifold and Top Burner..........................................	24
Oven Sensor ...........................................................	25
Electronic Clock ......................................................	25
Oven Light Replacement .........................................	25
Oven Door(s)
Door Removal ......................................................	25
Door Replacement ...............................................	25
Gasket and Door Disassembly ............................	26
Lower Latch Assembly ............................................	27
Upper Latch Assembly ............................................	27
Oven Door Hinge .....................................................	28
Regulator ................................................................	28
Gas Valve ...............................................................	28
Door Plunger ...........................................................	28
Spark Module ..........................................................	28
Convection Assembly ..............................................	28
Oven Racks ............................................................	29
Rack Positions .......................................................	29
Oven Cavity Components (Gas) ..............................	29
Appendix A
Installation Instructions .........................................	A-2
Appendix B
Use and Care Model MGR6775AD* ......................	B-2
Use and Care Model MGR6875AD* ....................	B-12
Care and Cleaning ...............................................	B-23
Appendix C
LP Conversion .......................................................	C-2

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Important Safety Information

Recognize this symbol as a safety precaution.

!

!WARNING

If the information in this manual is not followed exactly, a fire or explosion may result causing property damage, personal injury or death.

Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

•Extinguish any open flame.

•Do not try to light any appliance.

•Do not touch any electrical switch; do not use any phone in your building.

•Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

•If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by an authorized installer, service agency or gas supplier.

!W ARNING

Due to the nature of cooking, fires can occur as a result of overcooking or excessive grease. Although a fire is unlikely, if one occurs proceed as follows:

Oven Fires

1.Do not open the oven door.

2.Turn all controls to the OFF position.

3.As an added precaution turn off the electricity at the main circuit breaker or fuse box and the gas at the main supply valve.

4.Allow the food or grease to burn itself out in the oven.

If smoke or fire persist call the local fire department.

To avoid risk of property damage or personal injury do not obstruct the flow of combustion or ventilation air to the oven.

To avoid risk of electrical shock, serious personal injury or death: Verify the oven has been properly grounded and always disconnect the electrical supply before servicing this unit.

!WARNING

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.

This gas appliance contains or produces a chemical or chemicals 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 manual.

NOTE: The maximum gas supply pressure for these models must not exceed 14 inches W.C.P.

Safety Practices for Servicer

Safe and satisfactory operation of gas ranges depends upon its design and proper installation. However, there is one more area of safety to be considered:

Servicing

Listed below are some general precautions and safety practices which should be followed in order to protect the service technician and consumer during service and after service has been completed.

1.Gas smell—Extinguish any and all open flames and open windows.

2.Turn gas off—Service range with gas turned off unless testing requires it.

3.Checking for gas leaks—Never check for leaks with any kind of open flame. Soap and water solution should be used for this purpose. Apply solution to suspected area and watch for air bubbles which indicates a leak. Correct leaks by tightening fittings, screws, connections, applying approved compound, or installing new parts.

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Important Safety Information

4.Using lights—Use a hand flashlight when servicing ranges or checking for gas leaks. Electric switches should not be operated where leaks are suspected. This will avoid creating arcing or sparks which could ignite the gas. If electric lights are already turned on, they should not be turned off.

5.Do not smoke—Never smoke while servicing gas ranges, especially when working on piping that contains or has contained gas.

6.Check range when service is completed—After servicing, make visual checks on electrical connection, and check for gas leaks. Inform consumer of the condition of range before leaving.

7.Adhere to all local regulations and codes when performing service.

Receiving Oven

•Installer needs to show consumer location of the range gas shut-off valve and how to shut it off.

•Authorized servicer must install the range, in accordance with the Installation Instructions. Adjustments and service should be performed only by authorized servicer.

•Plug range into a 120–volt grounded outlet only. Do not remove round grounding prong from the plug. If in doubt about grounding of the home electrical system, it is consumers responsibility and obligation to have an ungrounded outlet replaced with a properly grounded three-prong outlet in accordance with the National Electrical Code. Do not use an extension cord with this appliance.

•Insure all packing materials are removed from the range before operating it, to prevent fire or smoke damage should the packing material ignite.

•Ensure range is correctly adjusted by a qualified service technician or installer for the type of gas (Natural or LP). Some ranges can be converted for use with Natural or LP gas.

•With prolonged use of a range, high floor temperatures could result. Many floor coverings will not be able to withstand this kind of use. Never install range over vinyl tile or linoleum that cannot withstand high temperatures. Never install range directly over carpeting.

Using the Oven

•Do not leave children alone or unattended where a range is hot or in operation. They could be seriously burned.

•Do not allow anyone to climb, stand or hang on the door. They could damage the range and cause severe personal injury.

•Wear proper apparel. Loose fitting or hanging garments should never be worn when using oven. Flammable material could ignite if brought in contact with flame or hot oven surfaces which may cause severe burns.

•Never use range for warming or heating a room. This may cause burns, injuries, or a fire.

•Do not use water on grease fires.

•Do not let grease or other flammable materials collect in or around range.

•Do not repair or replace any part of range unless it is recommended in this manual.

•Use only dry potholders. Moist or damp potholders used on hot surfaces may result in a burn from steam. Do not let a potholder touch the flame. Do not use a towel or a bulky cloth as a potholder.

•Never leave range unattended while cooking. Boilovers can cause smoking and may ignite.

•Only certain types of glass/ceramic, earthenware, or other glazed utensils are suitable for oven use. Unsuitable utensils may break due to sudden temperature change.

•Use care when opening oven door. Let hot air or steam escape before removing or replacing food.

•Do not heat unopened food containers in oven.

Buildup of pressure may cause a container to burst and result in injury.

•Keep range vent ducts unobstructed.

•Place oven racks in desired location while oven is cool. If a rack must be moved while oven is hot, use a dry potholder.

•Do not use aluminum foil to line oven bottom or racks. Aluminum foil can cause a fire and will seriously affect baking results, and damage to porcelain surfaces.

•Do not touch interior surfaces of oven during or immediately after use. Do not let clothing or other flammable materials come in contact with bake or broil burners.

•Other areas of the oven can become hot enough to cause burns, such as vent openings, window, oven door and oven racks.

•To avoid steam burns, do not use a wet sponge or cloth to wipe up spills on hot cooking area.

•Do not store combustible or flammable materials, such as gasoline or other flammable vapors and liquids near or in oven.

•Do not clean oven door gasket located on back of the door. Gasket is necessary to seal the oven and can be damaged as a result of rubbing or being moved.

•Do not drape towels or any materials on oven door handles. These items may ignite causing a fire.

!CAUTION

Do not store items of interest to children in cabinets above range. Children may climb on oven to reach these items and become seriously injured.

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Important Safety Information

Baking, Broiling, and Roasting

•Do not use oven area for storage.

•Stand back from range when opening door of a hot oven. Hot air or steam can cause burns to hands, face, and eyes.

•Do not use aluminum foil anywhere in the oven. This could result in a fire hazard and damage the range.

•Use only glass cookware appropriate for use in gas ovens.

•Always remove broiler pan from oven when finished broiling. Grease left in pan can catch fire if oven is used without removing grease from the broiler pan.

•Meat that is close to the flame may ignite when broiling. Trim any excess fat to help prevent excessive flare-ups.

•Make sure broiler pan is placed correctly to reduce any possibility of grease fires.

•Should a grease fire occur in the broiler pan, turn off oven, and keep oven door closed until fire burns out.

Gas Burner Orifices

Oven Safety Valve

Connecting Range to Gas

Install manual shut-off valve in gas line for easy accessibility outside range. Be aware of the location of the shut-off valve.

	Electrical Requirements
	120-volt, 60 Hertz, 15 amp, individual circuit which is		Grounded Oven Frame
	properly grounded, polarized and protected by a circuit
	breaker or fuse.
	Extension Cord
	Due to possible pinching during installation, extension
	cords should not be used on products.
	Extension cords will adversely affect the performance of
	spark system.
	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.
	Listed below are various safety devices together with the
	reason each device is incorporated in the gas ranges.
	Pressure Regulator	Maintains proper and
		steady gas pressure for
		operation of oven
		controls. Regulator must
		be set for the type of
		gas being used Natural
		or LP. After servicing
		regulator, make certain it
		is set properly before
		completing service.
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Universal orifices are used on most valves. They must be adjusted or set for the type of gas being used Natural or

LP.

After servicing a valve or orifice verify it is adjusted properly before completing service.

Oven valve is designed to be a safety valve. Two basic designs are used in gas ranges.

Hydraulic type valve Electric type valve

Both types are safety valves because they are indirectly operated by the oven thermostat, which controls a pilot flame or electric ignitor, to open and close the oven valve.

Ground prong on power cord is connected to the frame, usually a green lead fastened by a screw. In addition, 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, or any reason, it must be reconnected to its original position with original fastener before the appliance is put into operation again.

Failure to do so can create a possible shock hazard.

©2004 Maytag Services

General Information

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

The directions, information, and warnings in this manual are developed from experience with, 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 unit in proper operating order ensures the consumer all the benefits provided by clean, modern gas cooking.

This manual contains information needed by authorized service technicians to install and service gas 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.

Cooking Nomenclature

M

E

R

6

8

7

5

A

A

W

Color

A

Almond on Almond

Brand

B

Black

A

Amana

C

Brushed Chrome

H

Traditional White

C

Magic Chef

L

Traditional Almond

G

Graffer &

P

Prostyle

Sattler

Q

Monochromatic Bisque

H

Hardwick

S

Stainless

J

Jenn-Air

T

Traditional Bisque

M

Maytag

W

White on White

N

Norge

F Frost White (True Color White)

U

Universal

N Natural Bisque (True Color Bisque)

Y

Crosley

Listing

Fuel

A

UL/AGA

B

Butane

C

CSA/CGA/CUL

D

Dual Fuel

D

Dual Listed

E/J

Electric

G 220-240 V / 50-60 Hz

G

Gas, Natural

M

Military Model

L

Liquid Propane

P

PSB Approved

M

Microwave

(Singapore)

P

Standing Pilot

X Export 120 V / 60 Hz

X

No Fuel

W

Warming Drawer

Production Code

Product Type

This identifies the

production version.

A Accessory/Cartridge

CCooktop Updraft/Countertop

DDowndraft Cooktop or Warming Drawer

EEyelevel Range

	G	Grill
	L	Range (20")	Feature Content
	M	Range (36")	1000-3999	Brands
	P	Drop In (24")
			4000-6999	Maytag/Amana
	Q	Wall Oven (27")
			7000-9999	Jenn Air

RRange, Free-Standing (30")

SSlide-In (30")

TRange Hood

V OTR

W Wall Oven

YRV Range

ZRV Top

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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 (see Chapter 2) 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 freestanding range. The number can be found on a metal tag located on the back of the control panel. Reach behind the top left corner of the control panel and rotate the tags up to view the data.

Location of Model

and Serial Number

Model Identification

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

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

•For product in Canada call 1-866-587-2002 or visit the Web Site at www.maytag.com

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 Maytag product call 1-800-462-9824 or visit the Web Site at www.maytag.com

•For product in Canada call 1-866-587-2002 or visit the Web Site at www.maytag.com

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

Parts and Accessories

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

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

•For product in Canada call 1-866-587-2002 or visit the Web Sites at www.maytag.com

Extended Service Plan

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

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

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General Information

Grounding

NOTE: This appliance must be properly grounded, for personal safety.

Power cord on this appliance is equipped with a threeprong grounding plug. This matches standard three-prong grounding wall receptacle to prevent possibility of electric shock from this appliance.

Consumer should have wall receptacle and circuit checked by qualified electrician to verify receptacle is properly grounded.

It is the consumers responsibility to replace standard twoprong wall receptacles with properly grounded three-prong wall receptacles.

DO NOT, UNDER ANY CIRCUMSTANCES, CUT OR REMOVE THE THIRD (GROUND) PRONG FROM POWER CORD.

For 15 amp circuits only, do not use an adapter on 20 amp circuit. Where local codes permit, a TEMPORARY CONNECTION may be made to a properly grounded twoprong wall receptacle by the use of a UL listed adapter (available at most hardware stores).

Larger slot on adapter must be aligned with larger slot in the wall receptacle to provide proper polarity.

!WARNING

Attaching adapter ground terminal to wall receptacle cover screw does not ground appliance unless the cover screw is metal and not insulated, and wall receptacle is grounded through the house wiring. Consumer should have circuit checked by a qualified electrician to verify receptacle is properly grounded.

When disconnecting power cord from adapter, always hold adapter with one hand. If this is not done, adapter ground terminal is very likely to break with repeated use. Should this happen, DO NOT USE appliance until a proper ground has been established.

Neutral Wire

Ground Hot Line

NOTE: Circuit tester can be used to verify voltage at outlet. Connect one lead to hot line and the other lead to ground. Circuit tester should light.

©2004 Maytag Services

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Range Description

Electronic Oven Control

Backguard

Data Plate

Oven Vent

Surface Controls

Broiler

Surface Burners

Bake Burner

Oven Rack

Oven Window

Broiler

Anti-Tip Bracket
Leveling Leg	Bake Burner
	Oven Racks
	Door Gasket

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Troubleshooting Procedures

!WARNING

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

!CAUTION

•Verify proper grounding before checking for trouble.

•Be careful of the high voltage circuit.

•Discharge the high voltage capacitor.

•When checking the continuity of the switches or of the high voltage transformer, disconnect one lead wire from these parts and then check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to your meter.

•Do not touch any part of the circuit on the printed circuit board, since static electric discharge may damage the control panel. Always touch yourself to ground while working on this panel to discharge any static charge built up on your body.

Control Systems Troubleshooting

Description of Error Codes

The Diagnostic Code Display Mode allows viewing of the error diagnostic codes.

Each error code consists of four digits. The following table describes the function of each digit.

Digit

1st

2nd

3rd

4th

		Description
Primary System:	1 – Local to the control circuit board
	3	– Sensor or meat probe
	4	– Control input
	9	– Door lock
Measurable:	d – Diagnostic: measurable parameter
	c – Control related, replace control
Secondary System: Sequential numbering
Oven Cavity:	1 – Upper oven (or single cavity oven)
	2	– Lower oven
	c – Control specific

Diagnostic Code Display Mode may be activated by pressing and holding the AUTOSET pad for 3 seconds at power-up. Diagnostic Code Display Mode may be entered only when applying power to the control.

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Troubleshooting Procedures

!WARNING

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

Diagnostic Code Checking

Code	Description	When Checked				Detection
1c1c	Shorted key		Always			1 minute
1c2c	Keyboard tail disconnected		Always			1 minute
1c31	Cancel key circuit problem		Always			20 seconds
1c32	Cancel key circuit problem		Always			20 seconds
1c6c	EEPROM error	When accessing EEPROM				3 tries
1c7c	Control not calibrated		Always			3 tries
1c8c	Cooking program error	Cook or clean programmed				3 tries
1d11	Runaway temp (650°F), door unlocked	Latch unlocked				1 minute
1d12	Runaway temp (650°F), door unlocked	Latch unlocked				1 minute
1d21	Runaway temp (950°F), door locked	Latch locked				1 minute
1d22	Runaway temp (950°F), door locked	Latch locked				1 minute
3d11	Sensor open	Cook or clean active				20 seconds
3d12	Sensor open	Cook or clean active				20 seconds
3d21	Sensor shorted	Cook or clean active				20 seconds
3d22	Sensor shorted	Cook or clean active				20 seconds
4d11	Door switch position failure	Clean or keyboard Lockout active				1 minute
4d12	Door switch position failure	Clean or keyboard Lockout active				1 minute
4d21	No reverse airflow fan rotation (no/low RPM)	Clean or Cook programmed				1 minute
4d31	Reverse airflow fan state (on when should be off)	Suppose to be OFF				1 minute
4d51	Door switch circuit failure	Convect, Clean or Keyboard Lockout programmed				1 minute
4d52	Door switch circuit failure	Convect, Clean or Keyboard Lockout programmed				1 minute
9d11	Latch will not lock	Latch should be locked				See Note 6
9d12	Latch will not lock	Latch should be locked				See Note 6
9d21	Latch will not unlock	Latch should be unlocked				See Note 6
9d22	Latch will not unlock	Latch should be unlocked				See Note 6
9d31	Latch state unknown, both locked and unlocked	Latch should be locked or when lock attempted				See Note 6
9d32	Latch state unknown, both locked and unlocked	Latch should be locked or when lock attempted				See Note 6
Diagnostic Code Handling
Code	Measurable	What is Displayed		Action Taken By Control
				Disables audible for affected key depression
1c1c	Keypress	Nothing		Disables all outputs 1, 2
				Disables lights and timers
				Disables audible for key depression
1c2c	Keyboard loop improper value	Nothing		Disables all outputs 1
				Disables lights and timers
1c31	Cancel key improper value	BAKE flashes 3		Disables all outputs for cavity 1
1c32	Cancel key improper value	BAKE flashes 3		Disables all outputs for cavity 1
1c6c	No response from EEPROM	Nothing		Disables all outputs 1
1c7c	Calibration value out of range	“CAL” in the time digits		Completely disables oven 4
1c8c	CRC invalid	Nothing		Cancels active cook function
1d11	Sensor resistance > 2237 Ω	BAKE flashes 3		Disables all cook function for cavity
1d12	Sensor resistance > 2237 Ω	BAKE flashes 3		Disables all cook function for cavity
1d21	Sensor resistance > 2787 Ω	BAKE flashes 3		Disables all cook function for cavity
1d22	Sensor resistance > 2787 Ω	BAKE flashes 3		Disables all cook function for cavity
3d11	Sensor resistance > Infinite Ω	BAKE flashes 3		Disables all cook function for cavity
3d12	Sensor resistance > Infinite Ω	BAKE flashes 3		Disables all cook function for cavity
3d21	Sensor resistance > 0 Ω	BAKE flashes 3		Disables all cook function for cavity
3d22	Sensor resistance > 0 Ω	BAKE flashes 3		Disables all cook function for cavity
4d11	Door switch not closed when door is locked	Nothing		Disables Clean and Lockout functions 5
4d12	Door switch not closed when door is locked	Nothing		Disables Clean and Lockout functions 5
4d21	No reverse airflow fan rotation (no/low RPM)	Nothing		Disables all cook function for cavity
4d31	Reverse airflow fan state (on when should be off)	Nothing		No action
4d51	Door switch not open or closed	Nothing		Disables Convect, Clean, and Lockout functions 4, 5
				Turn off light and disable light from door switch
4d52	Door switch not open or closed	Nothing		Disables Convect, Clean, and Lockout functions 4, 5
				Turn off light and disable light from door switch
9d11	Lock switch not closed	LOCK flashes 3		Disables Clean and Lockout functions 4
9d12	Lock switch not closed	LOCK flashes 3		Disables Clean and Lockout functions 4
9d21	Unlock switch not closed	LOCK flashes 3		Disables Clean and Lockout functions 4
9d22	Unlock switch not closed	LOCK flashes 3		Disables Clean and Lockout functions 4
9d31	Latch both locked and unlocked	LOCK flashes 3		Disables Clean and Lockout functions 4
9d32	Latch both locked and unlocked	LOCK flashes 3		Disables Clean and Lockout functions 4

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Troubleshooting Procedures

!WARNING

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

NOTES:

1

2

3

4

5

6

“Action Taken” applies as long as the condition exists. If the condition goes away, the control recovers.

If there is a cook function or timer active, the function continues. The user cannot edit the function, and [Cancel] will cancel the cook mode.

Flash rate: 0.2 seconds on, 0.1 second off. Pressing any key will clear the display until the fault clears and is re-triggered. “Action Taken” applies until there is a POR (Power On Reset [“hard reset”]).

If the control believes the door is locked, it will attempt to unlock it when the function cancels and the cavity temperature cools. Special conditions for latch faults (9dxx):

•A known good unlock position is defined as when the unlock switch reads closed and lock switch reads open.

•A known good lock position is defined as when the unlock switch reads open and lock switch reads closed.

•A faulted switch means the switch input is reading an invalid state, neither open nor closed.

•Once a latch fault occurs, latch movement is disabled until there is a POR. An error tone will sound if a function requiring a faulted latch is attempted.

•If at POR, the latch is not at a known good unlock position:

•If the latch is at a good lock position, it will attempt to unlock when the RTD (Resistance Temperature Device) temperature is below 400°F.

•If the latch is not at a good lock position, the control will fault.

•If a latch fault occurs while the RTD is above the lock temperature, the latch will not try to move, but the fault is still logged to EEPROM after the first stage of detection.

•The Display column for latch faults applies 1) If the latch was moving when the fault occurred; 2) If the latch is already in a known locked state when the fault occurs.

•LOCK flashes after a fault is detected and until the unlocked position is achieved. The unlock position may be identified by a successful unlock switch closure, or as the result of timing when the unlock switch is not functioning properly.

•If the last known good position was unlock (e.g. baking, or idle) and a latch fault occurs, the motor is never moved. The fault is logged to EEPROM and is not seen by the user.

•Latch fault detection is in two stages. The first stage is to allow the control to recover without moving the latch. After this:

•If the latch was previously at a known good unlock position, the latch will not move and the control will fault.

•If the control was previously in a known good lock position:

•If the RTD is below 400°F, the latch will attempt to recover to it’s proper position (up to three revolutions). If it cannot, the control will fault and the latch will move to a calculated unlock position.

•If the RTD is at or above 400°F, the control will fault. When the RTD cools to below 400°F, the control will attempt to recover to a good unlock position (up to three revolution). If it cannot, the control will fault and the latch will move to a calculated unlock position.

•Note: If the unlock position cannot be found, this may result in a second fault, the first fault occurring when the latch request was locked, and the second when the latch request is unlocked.

•If the latch is moving when the fault occurs, the control will bypass the first stage of detection and immediately try to find it’s proper position. If it cannot, the control will fault and the latch will move to a calculated unlock position.

•Affected DLBs (Double Line Breaks) and loads are disabled during detection.

•If the control is in a known good unlock position and the lock switch becomes faulted:

•The control will not fault.

•If a function requiring latch movement is attempted while the lock switch is faulted, the control will sound an error tone and the function will be disabled.

•If the control is in a known good lock position and the unlock switch becomes faulted:

•The control will not fault.

•After the function is canceled and unlock is attempted, the control will attempt to unlock the latch according to the procedures in these notes.

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Troubleshooting Procedures

!WARNING

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

Component Troubleshooting

	Problem	Possible Cause	Correction
		Poor ground on burner cap..........................	• Clean burner cap.
	Burners will not ignite; no	Weak or failed spark module.......................	• Replace spark module.
	spark at top burner.	Low gas pressure ........................................	• Verify pressure 4” WCP for
			natural, 10” WCP for LP.
		No 120 VAC to range ..................................	• Verify voltage at wall outlet.
		Micro switch contacts not closing ................	• Check wiring against appropriate
			wiring diagram. Verify all
			terminals and connections are
		Faulty wiring. Bad connection at burner	correct and tight. Check micro
	Burner will not ignite. No		switch contacts.
		electrode and electrode socket	• Check wiring against appropriate
	spark to burner ignitors when
	burner knob is rotated to		wiring diagram. Verify all
			terminals and connections are
	“LITE” position.
			correct and tight.
		Inoperative spark module ............................	• Check module according to
		Electrode dirty. Burner cap dirty	testing procedures information.
			• Clean electrode or burner cap.
		Cracked or broken electrode, electrode
			• Replace electrode.
		wire or electrode socket...............................
		Check for cracked ignitor or pinched ignitor	• Replace ignitor lead or electrode.
		wire .............................................................
		Poor continuity to burner cap.......................	• Clean burner cap and lead.
	No spark or only random	Bad ground connection or lack of continuity	• Tighten ground connection and
		to ground or ignitor
	spark at one ignitor.
			correct any breaks in ground path
			from ignitor path to unit ground
			path.
		Cracked or broken ignitor extension lead....	• Replace ignitor lead.
		Shorted valve switch/harness......................	• Replace switch/harness. If
			shorting is caused by excessive
	Unit continues to spark after		spillovers, customer education is
			advised.
	knob is turned to OFF
		Switch has slipped off the valve	• Carefully reposition switch on
	position.
			valve and rotate from OFF to
			high, several times to verify
			switch is not broken.
		No voltage to control....................................	• Check for 120 VAC at control. If
			no voltage check power source.
	No oven operation in bake or	No voltage from control ...............................	• Check 120 VAC to ignitor, if no
	broil.		voltage, replace control.
		Loose wire connection or broken wire .........	• Verify all connections are clean
			and tight, replace broken wire.

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Troubleshooting Procedures

!WARNING

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

Problem	Possible Cause
	Failed ignitor................................................
	Gas pressure too high .................................
No gas flows to burner.
Ignitor glows red.
	Failed gas valve...........................................
	Loose wire connection or broken wire.........
	Ignitor positioned too far from burner ..........
	Dirt or grease in orifice or burner.................
	Insufficient gas pressure .............................
Gas flows to bake/broil
burner, but burner does not
light.	Power outage

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

Broil burner shuts off shortly after the start of self-clean operation. Bake and broil

functions operate normally.

Control Error................................................

No power to fan motor.................................

Fan motor does not operate.

Failed fan motor or winding/frozen shaft .....

Correction

•Check ignitor current draw, 3.2 – 3.6 Amps. Replace ignitor, if it fails test.

•Check for correct gas pressure. Natural gas pressure should be 4" WCP and LP gas pressure should be 10" WCP.

•Check gas valve for continuity.

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

•Reposition ignitor closer to bake/broil burner.

•Clean orifice or burner.

•Check for correct gas pressure. Natural gas pressure should be 5" WCP and LP gas pressure should be 10" WCP.

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

•Replace household fuse, but do not fuse capacity.

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

•Replace household fuse, but do not fuse capacity.

•See “Control Systems Troubleshooting.”

•Check for 120 VAC supplied at fan motor. If no voltage is present, check for broken or loose wiring between fan motor and relay board. If voltage is present at fan motor, go to the next step.

•Check motor winding for continuity. Check for a frozen motor shaft. Check for broken wiring between motor and neutral terminal block.

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Troubleshooting Procedures

!WARNING

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

	Problem	Possible Cause	Correction
		Failed oven lamp .....................................	• Check lamp and replace is necessary.
		Failed wiring.............................................	• Check for broken, loose or dirty
	Oven light does not operate.		connections.
		Failed light socket	• Check light socket for continuity.
		Failed light plunger/switch .......................	• Check plunger/switch for continuity.
			Check wiring diagram for application.
		Programming error ..................................	• Shut off power to oven for five
	Self-clean cycle not working		minutes by switching off circuit
			breaker. Reset circuit breaker and try
			oven again.
		Oven is self-cleaning ...............................	• Allow cycle to complete.
		Oven is still hot ........................................	• Door will not unlock until unit has
	Oven door will not unlock		cooled to safe temperature. Do not
			force door open, this will void
			warranty. Blow cool air on door latch
			area to quicken process.
		Normal .....................................................	• Minor smoking and/or odor is normal
	Oven smokes/odor first few		the first few times of oven usage.
	times of usage		• Ventilate area well and perform self-
			clean cycle.
	Failure Codes	Electronically Controlled ..........................	• See Testing Procedures for
			diagnostic checks.
		Power Outage..........................................	• Check power supply/circuit breaker
		Improperly set oven controls ...................	• Verify oven controls are properly set
	Part or all of the appliance	Oven door locked ....................................	• Verify oven door is unlocked after a
	does not work		self-clean cycle
		Delayed cooking/cleaning........................	• Verify oven is not set for delayed
			cooking or cleaning program

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Testing Procedures

!WARNING

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

Component Testing

Illustration			Component	Test Procedure	Results
			Oven light housing	Disconnect connector and test	Verify bulb is properly installed.
				resistance of terminals.........................	Indicates continuity with bulb installed.
				Measure voltage at oven light: .............	120 VAC, refer to wiring diagram for
					terminal identification. If no voltage is
					present at light, check wiring/switches.
			Door plunger switch	Remove switch from unit and measure
				the following points:
				C NO ................................................	Plunger in continuity, Plunger out infinite.
			Autolatch assembly	Disconnect wires and test for	See wiring diagram for schematic layout.
			with switch	continuity per wiring diagram.	Access assembly by removing left side
					panel.
				Refer to Parts Manual for correct
				autolatch switch associated with the
				correct manufacturing number.
5 K btu			270° valve	Verify gas is supplied.
9.2 K btu
16 K btu				Adjust set screw for simmer control.
12 K btu (Model
MGR6875AD*)
			Spark 270° switch	Test for voltage at terminals.................	120 VAC
				Disconnect wiring and check for
				continuity in LITE position ....................	Continuity in LITE position.
			Spark ignition	Test for resistance of spark lead..........	Continuity
			electrode
				Test ignitor to chassis ..........................	No continuity from ignitor to chassis.
5 K btu			Top surface burner	Verify gas is supplied...........................	Check for obstructions in burner ports.
9.2 K btu
16 K btu				Verify burner cap is positioned
12 K btu (Model				correctly.
MGR6875AD*)
L	A	B	Spark module 4 + 0	Test for voltage at terminals L and N ...	120 VAC
N		A1 B1		Check polarity and ground ...................	See wiring diagram
			Temperature sensor	Measure resistances............................	Approximately 1100 Ω at room
					temperature 75°F.
			Bake burner	Verify gas is supplied.	Set for Natural Gas from the factory
				Orifice adjusted for Natural or LP.........	Adjust as necessary.
				Check for obstructions or
				contamination in ports..........................	Replace if punctured or torn.
			Broil burner	Verify gas is supplied.	Set for Natural Gas from the factory
				Orifice adjusted for Natural or LP.........	Adjust as necessary.
				Check for obstructions or
				contamination in ports..........................	Replace if punctured or torn.
			Ignitor	Test for voltage at terminals.................	120 VAC
				Test for the amount of amperage in the
				circuit ...................................................	3.2 − 3.6 Amps If not replace.
				(Ignitor may glow but not have
				sufficient amperage to open valve).

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Testing Procedures

!WARNING

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

Illustration	Component	Test Procedure	Results
	Triple thermal valve	Disconnect wiring to valve.
		Measure resistance on upper and
		lower bake circuit.................................	Continuity, If not replace.
		Measure resistance on broil circuit ......	Continuity, If not replace.

		! WARNING
		Do not attempt to open valve with
		120 VAC.
Pressure regulator	Verify gas pressure (W.C.P.).	5" Natural
	If on LP service verify proper gas	10" LP/propane
	supply conversion.
Shut off valve	Check to verify gas supply is turned	Gas ON .... slot at 9 o’clock position
	on.	Gas OFF... slot at 12 o’clock position
	Located on surface valve manifold
	near maintop upsweep.
Convection Assembly	Measure voltage..................................	120 VAC.
Convection Element	Remove wires, check resistance .........	Approximately 28 to 33 Ω.
Convection Motor	Check motor windings to ground .........	No continuity.
		Approx. 900 RPM.
Model MGR6875AD*
Power cord 3-wire	Verify resistance of wires to	Continuity
	terminals.

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Testing Procedures

!WARNING

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

Illustration/Component		Test Procedure
Control Panel Assembly	Continuity is indicated as follows:
	1000	– 6600 Ω for Cancel pad
	1000	– 10000 Ω for All other pads
Model MGR6875AD*

Results

Pad	Trace			Measurement
1	14		& 16	Continuity
2	17		& 16	Continuity
3	16		& 8	Continuity
4	7	& 6		Continuity
5	8	& 17		Continuity
6	7	& 14		Continuity
7	6	& 15		Continuity
8	5	& 14		Continuity
9	6	& 14		Continuity
0	8	& 14		Continuity
Lower Cancel	1	& 2		Continuity
Upper Cancel	11		& 12	Continuity
Conv Bake	4	& 15		Continuity
Delay	5	& 6		Continuity
Clock	5	& 16		Continuity
Favorite	5	& 7		Continuity
Lower Clean	5	& 15		Continuity
Upper Clean	7	& 16		Continuity
Lower Bake	8	& 15		Continuity
Lower Light	7	& 15		Continuity
Upper Keep Warm	7	& 17		Continuity
Upper Light	15		& 16	Continuity
Autoset	14		& 17	Continuity
Lower Keep Warm	8	& 16		Continuity
Conv Roast	5	& 4		Continuity
Upper Bake	4	& 14		Continuity
Timer 2	4	& 7		Continuity
Cook & Hold	6	& 16		Continuity
Upper Broil	14		& 15	Continuity
Timer 1	4	& 16		Continuity

Model MGR6775AD* Membrane and Overlay

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Testing Procedures

!WARNING

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

H2 Control Testing (Model MGR6875AA*)

H2 Controlled	Oven temperature	Press Upper Bake pad.	While increasing or decreasing oven
Model MGR6875AD*	adjustment	Enter 550 on the digit-pad.	temperature, this does not affect self-
	(Upper Oven)	Immediately press and hold Upper Bake	cleaning temperature.
		pad for 3 seconds.
		Adjust oven from -35° to +35° (-37.2° to
		+ 1.6° C) in 5° F (2.7° C) increments by
		pressing Autoset pad. To avoid over
		adjusting the oven, move temperature 5°
		F (2.7° C) each time. Wait 4 seconds for
		the data entry timer to expire to accept
		the change. Temperature adjustment is
		retained even through a power failure.
H2 Controlled	Oven temperature	Press Lower Bake pad.	While increasing or decreasing oven
Model MGR6875AD*	adjustment	Enter 550 on the digit-pad.	temperature, this does not affect self-
	(Lower Oven)	Immediately press and hold Lower Bake	cleaning temperature.
		pad for 3 seconds.
		Adjust oven from -35° to +35° (-37.2° to
		+ 1.6° C) in 5° F (2.7° C) increments by
		pressing Autoset pad. To avoid over
		adjusting the oven, move temperature 5°
		F (2.7° C) each time. Wait 4 seconds for
		the data entry timer to expire to accept
		the change. Temperature adjustment is
		retained even through a power failure.
H2 Controlled	Temperature	Press and hold Upper Cancel and	This mode enables the user to indicate
Model MGR6875AD*	display	Upper Bake pads for 3 seconds.	°F or °C on the display.
H2 Controlled	Clock Display	Press and hold Upper Cancel and	Allows clock to be toggled On or OFF.
Model MGR6875AD*		Clock pads for 3 seconds.
H2 Controlled	24 Hour Clock	Press and hold Upper Cancel and	Allows the time on the clock to be
Model MGR6875AD*		Favorite pads for 3 seconds.	toggled from 12 hour or 24 hour display.
H2 Controlled	Factory Default	Press and hold Upper Cancel and	Allows the clock to be reset to factory
Model MGR6875AD*		Upper Keep Warm pads for 3 seconds.	settings.
H2 Controlled	Twelve hour off	Control will automatically cancel any	See Sabbath mode to disable.
Model MGR6875AD*		cooking operation and remove all relay
		drives 12 hours after the last pad touch.
H2 Controlled	Sabbath Mode	Hold Clock pad for 3 to 5 seconds to	“SAbbAth” will display for 5 seconds,
Model MGR6875AD*		activate Sabbath mode.	then change to “SAb” (displayed in Temp
			area).
		Hold Clock pad for 3 to 5 seconds to	All pad inputs are disabled except for
		disable Sabbath mode.	CANCEL and CLOCK pads.
			This mode disables the normal 12 hour
			shutoff to allow operation of the bake
			mode for a maximum of 72 hours.
H2 Controlled	Beeper Volume	Hold Upper Cancel and Delay pads for	Volume settings are Low, Medium and
Model MGR6875AD*		3 seconds to adjust beeper loudness.	High.
H2 Controlled	Child lock out	Press and hold Upper Cancel and Cook	This is a safety feature that can be used
Model MGR6875AD*		& Hold pads for 3 seconds. “OFF” will	to prevent children from accidentally
		display where the temperature normally	programming the oven. It disables the
		appears. “LOCK” will display flashing	electronic oven control.
		while door is locking.	Child lockout features must be reset after
		To reactivate the control, press and hold
		Cancel and Cook & Hold for 3 seconds.	a power failure.
H2 Controlled	Diagnostic Code	Press and hold Upper Cancel and	The last 5 diagnostic codes will be stored
Model MGR6875AD*	Display	Autoset pads for 3 seconds.	in the non-volatile memory.
		See “Quick Test Mode.”	See “Description of Error Codes” for
		Cycle through the codes using the
		number pads 1 through 5.	explanation.

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Testing Procedures

!WARNING

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

H3 Control Testing (Model MGR6775AA*)

H3 Controlled	Oven	Press Upper Bake pad.	While increasing or decreasing oven
Model MGR6775AD*	temperature	Enter 550 on the digit-pad.	temperature, this does not affect self-
	adjustment	Immediately press and hold Upper Bake	cleaning temperature.
	(Upper Oven)	pad for 3 seconds.
		Adjust oven from -35° to +35° (-37.2° to +
		1.6° C) in 5° F (2.7° C) increments by
		pressing More+ or Less-pads. To avoid
		over adjusting the oven, move temperature
		5° F (2.7° C) each time. Wait 4 seconds
		for the data entry timer to expire to accept
		the change. Temperature adjustment is
		retained even through a power failure.
H3 Controlled	Oven	Press Lower Bake pad.	While increasing or decreasing oven
Model MGR6775AD*	temperature	Enter 550 on the digit-pad.	temperature, this does not affect self-
	adjustment	Immediately press and hold Lower Bake	cleaning temperature.
	(Lower Oven)	pad for 3 seconds.
		Adjust oven from -35° to +35° (-37.2° to +
		1.6° C) in 5° F (2.7° C) increments by
		pressing More+ or Less-pads. To avoid
		over adjusting the oven, move temperature
		5° F (2.7° C) each time. Wait 4 seconds
		for the data entry timer to expire to accept
		the change. Temperature adjustment is
		retained even through a power failure.
H3 Controlled	Temperature	Press and hold Upper Cancel and Upper	This mode enables the user to indicate
Model MGR6775AD*	display	Bake pads for 3 seconds.	°F or °C on the display.
H3 Controlled	Factory Default	Press and hold Upper Cancel and Warm	Allows the clock to be reset to factory
Model MGR6775AD*		pads for 3 seconds.	settings.
H3 Controlled	Clock Display	Press and hold Upper Cancel and Clock	Allows clock to be toggled On or OFF.
Model MGR6775AD*		pads for 3 seconds.
H3 Controlled	24 Hour Clock	Press and hold Upper Cancel and Delay	Allows the time on the clock to be
Model MGR6775AD*		pads for 3 seconds.	toggled from 12 hour or 24 hour display.
H3 Controlled	Demo	Press and hold Upper Cancel and Less -	Enters a demonstrative sales mode.
Model MGR6775AD*		pads for 3 seconds.
H3 Controlled	Twelve hour off	Control will automatically cancel any	See Sabbath mode to disable.
Model MGR6775AD*		cooking operation and remove all relay
		drives 12 hours after the last pad touch.
H3 Controlled	Sabbath Mode	Hold Clock pad for 5 seconds to activate	“SAb” displays and flashes for 5
Model MGR6775AD*		Sabbath mode.	seconds.
		Hold Clock pad for 5 seconds to disable	All pad inputs are disabled except for
		Sabbath mode.	CANCEL and CLOCK pads.
		Oven must be in BAKE mode before	This mode disables the normal 12 hour
		enabling SABBATH.	shutoff to allow operation of the bake
			mode for a maximum of 72 hours.
H3 Controlled	Beeper Volume	Hold Upper Cancel and More+ pads for 3	Volume settings are Low, Medium and
Model MGR6775AD*		seconds to adjust beeper loudness level.	High.
H3 Controlled	Child lock out	Press and hold Upper Cancel and Cook &	This is a safety feature that can be used
Model MGR6775AD*		Hold pads for 3 seconds. “OFF” will	to prevent children from accidentally
		display where the temperature normally	programming the oven. It disables the
		appears. “LOCK” will display flashing while	electronic oven control.
		door is locking.	Child lockout features must be reset after
		To reactivate the control, press and hold
		Cancel and Cook & Hold pads for 3	a power failure.
		seconds.
H3 Controlled	Diagnostic	Press and hold Upper Cancel and Timer	The last 5 diagnostic codes will be stored
Model MGR6775AD*	Code Display	for 3 seconds within 5 minutes of power up.	in the non-volatile memory.
		See “Quick Test Mode.”	See “Description of Error Codes” for
		Cycle through the codes.
			explanation.

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