tech-sheet-16023523
Gas Freestanding Range Technical Information

! WARNING

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

AGR4412AD* C*31600AD* CGR1425AD* MGR4451AD* MGR4452AD* PGR4420LD*

Due to possibility of personal injury or property damage, always contact an authorized technician for servicing or repair of this unit.

Refer to Service Manual 16023522 for detailed installation, operating, testing, troubleshooting, and disassembly instructions.

! CAUTION

All safety information must be followed as provided in Service Manual 16023522.

! WARNING

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

Models AGR4412AD* C*31600AD* CGR1425AD* MGR4451AD* MGR4452AD* PGR4420LD*

Power Source

Electrical rating 120 VAC 120 VAC 120 VAC 120 VAC 120 VAC 120 VAC 10 Amp 10 Amp 10 Amp 10 Amp 10 Amp Amperage 10 Amp 60 Hz 60 Hz 60 Hz 60 Hz 60 Hz

Frequency 60 Hz

Water Column Pressure

Natural 4 in. W.C.P. 4 in. W.C.P. 4 in. W.C.P. 4 in. W.C.P. 4 in. W.C.P. 4 in. W.C.P. 10 in. W.C.P. 10 in. W.C.P. 10 in. W.C.P. 10 in. W.C.P. 10 in. W.C.P. LP/Propane 10 in. W.C.P.

Surface Burner BTU Nat. (LP)

Right front 12 K (8.5 K) 12 K (8.5 K) 12 K (8.5 K) 12 K (8.5 K) 12 K (8.5 K) 12 K (8.5 K) 9.2 K (8 K) 9.2 K (8 K) 9.2 K (8 K) 9.2 K (8 K) 9.2 K (8 K) Left front 9.2 K (8 K) 9.2 K (8 K) 9.2 K (8 K) 9.2 K (8 K) 9.2 K (8 K) 9.2 K (8 K) 7.2 K (6.5 K) 7.2 K (6.5 K) 7.2 K (6.5 K) 7.2 K (6.5 K) 7.2 K (6.5 K) Right rear 9.2 K (8 K)

Left rear 7.2 K (6.5 K)

Oven Burner BTU Nat. (LP)

Bake 18 K (18 K) 18 K (18 K) 18 K (18 K) 18 K (18 K) 18 K (18 K) 18 K (18 K)

Oven Interior Dimensions in. (cm)

Height 16.5 (42) 16.5 (42) 16.5 (42) 16.5 (42) 16.5 (42) 16.5 (42) 23 (58) 23 (58) 23 (58) 23 (58) 23 (58) Width 23 (58) 18.1 (46) 18.1 (46) 18.1 (46) 18.1 (46) 18.1 (46)

Depth 18.1 (46)

Product Exterior Dimensions in. (cm)

Height overall 46.75 (118.7) 46.75 (118.7) 46.75 (118.7) 46.75 (118.7) 46.75 (118.7) 46.75 (118.7) 29.87 (75.87) 29.87 (75.87) 29.87 (75.87) 29.87 (75.87) 29.87 (75.87) Width 29.87 (75.87) 26.16 (69) 26.16 (69) 26.16 (69) 26.16 (69) 26.16 (69)

Depth oven door 26.16 (69)

closed w/ handle

Features

Sealed burners X X X X X X Large Large Standard Large Standard Window Large X X X X X Auto shutoff X X X X X X X X X X X Oven light X X X X X X

Electronic control X

2 standard racks X

5 positions

Weight lbs. (kg)

Crated 185 (84) 165 (75) 165 (75) 169 (77) 169 (77) 165 (75)

16023523 1 December 2004

©2004 Maytag Services

Component Testing Procedures

! WARNING

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

Illustration Component Test Procedure Results Oven light socket NC Test continuity of receptacle terminals … Indicates continuity with bulb inserted. NO Rocker switch Measure voltage at oven light…………….. 120 VAC, see wiring diagram for terminal COM Door lock switch Manual Latch identification. assembly with switch If no voltage present, check wiring.

Bake burner Measure continuity of switch positions: Closed ………………………………………… Continuity Ignitor Open …………………………………………… Infinite

Temperature sensor Switch connection in following Normally Open Pressure regulator positions: Not engaged …………………… COM-NO=Open, COM-NC=Closed Spark ignition electrode Engaged ………………………… COM-NO=Closed, COM-NC=Open

Disconnect wires and test for

continuity per wiring diagram……………… See wiring diagram for schematic layout.

Refer to Parts Manual for replacement

components.

NOTE: Control will cancel function if

latch is moved to LOCK position during

Bake or Broil.

Verify gas is supplied. Air shutter opening: .469″ to .531″.

Verify proper orifice installed-Nat or LP .. Blue flame with no yellow tipping.

Check for obstructions, contamination

in ports or damage …………………………… Replace if punctured or torn.

Test for voltage at terminals ………………. 120 VAC Test for amount of amperage in circuit … 3.2 to 3.6 Amps. (Ignitor may glow, but not have sufficient amperage to open valve).

Measure resistance ………………………….. Approximately 1000 at room temperature 80°F.

Verify gas pressure (WCP)………………… 4″ Natural

10″ LP/Propane

If using LP service, verify proper gas

supply conversion.

Test for resistance of spark lead…………. Continuity

Test ignitor to chassis……………………….. No continuity from ignitor to chassis.

December 2004 2 16023523

©2004 Maytag Services

Gas Freestanding Range Technical Information

! WARNING

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

Illustration Component Test Procedure Results M1 Controlled Oven temperature While increasing or decreasing oven adjustment Press Bake pad. temperature, this does not affect self- M1 Controlled Enter 550 on the digit-pad. cleaning temperature. M1 Controlled Temperature display Immediately press and hold Bake pad M1 Controlled Clock Display for 3 to 5 seconds. M1 Controlled 24 Hour Clock M1 Controlled Factory Default Oven can be adjusted from -35 to +35 This mode enables the user to indicate M1 Controlled Twelve hour off degrees in 5-degree increments by °F or °C on the display. Sabbath Mode pressing More + or Less – pads. To M1 Controlled avoid over adjusting the oven, move Allows clock to be toggled On or OFF. Child lock out temperature 5 degrees each time. M1 Controlled Wait 4 seconds for the data entry timer Allows the time on the clock to be Diagnostic Code to expire to accept the change. toggled from 12 hour or 24 hour display. Display Temperature adjustment is retained even through a power failure. Allows the clock to be reset to factory Press and hold Cancel and Bake settings. pads for 3 to 5 seconds. Press More + or Less – pads to change. See Sabbath mode to disable. Press and hold Cancel and Clock pads for 3 to 5 seconds. “SAb” will be displayed and flash for 5 Press and hold Cancel and Delay seconds then remain on until until timed- pads for 3 to 5 seconds. Press out or cancelled. More + or Less – pads to change. The status “SAB” is NOT fault code 5A6. Press and hold Cancel and Keep All pad inputs are disabled except for Warm pads for 3 to 5 seconds until CANCEL and CLOCK pads. beep sounds. This mode disables the normal 12 hour Control will automatically cancel any shutoff to allow operation of the bake cooking operation and remove all mode for a maximum of 72 hours. relay drives 12 hours after the last pad The oven light is not disabled. touch. This is a safety feature that can be used Hold Clock pad for 3 to 5 seconds to to prevent children from accidentally activate Sabbath mode. programming the oven. It disables the electronic oven control. Hold Clock pad for 3 to 5 seconds to disable Sabbath mode. Child lockout features must be reset after a power failure. Desired bake function must be The last 5 diagnostic codes will be stored initiated before entering Sabbath in the non-volatile memory. mode. See “Description of Error Codes” for Press and hold Cancel and Cook & explanation. Hold pads for 3 to 5 seconds until beep sounds.

To reactivate the control, press and hold Cancel and Cook & Hold pads for 3 to 5 seconds.

Press and hold More + pad within 60 seconds of powering up the unit.

Cycle through the codes using the More + or Less – pads.

16023523 3 December 2004

©2004 Maytag Services

Component Testing Procedures

! WARNING

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

“Quick Test” Mode for Electronic Range Control

Follow procedure below to use the quick test mode. Entries must be made within 32 seconds of each other or the control will exit the quick test mode.

1. Press and hold Cancel and Broil pads for 3 seconds. 2. Once the control has entered the “Quick Test” mode, release both pads. 3. Press each of the following pads indicated in the table below.

NOTE: First time one of following pads are pressed it will activate the response. The second time the pad is pressed it will deactivate the response.

NOTE: This mode can only be entered within the first 5 minutes after power up.

NOTE: If the temperature sensor is greater than 400° F and the “Quick Test” mode will be disabled if the temperature sensor reaches 400° F while under test.

Display will indicate the following:

Key Operation

[Bake] Bake relay activated [Broil] Broil relay activated [Keep Warm] NA [Cook&Hold] Last Diagnostic Code displayed [Clean] Beep sounds [Delay] (M1) EEPROM Version Number displayed [Timer] Main Code Version Number displayed [Clock] All Segments On [More +] Even Segments On [Less –] Odd Segments On [Cancel] End Factory Test Mode

Description of Error Codes

Error diagnostic codes can only be viewed by entering the Diagnostic Code Display Mode. Each error code is four digits long and is created based on the following table.

Digit Description 1st Primary System: 1 – Local to the control circuit board 2nd 3rd 3 – Sensor or meat probe 4th 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 started only within 60 seconds when powering up the control.

December 2004 4 16023523

©2004 Maytag Services

Gas Freestanding Range Technical Information

! WARNING

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

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 1c6c EEPROM error When accessing EEPROM 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 3 tries Runaway temp (950°F), door locked 1 minute 1d21 Sensor open Latch locked Sensor shorted 1 minute 3d11 Latch will not lock Cook or clean active 3d21 Cook or clean active 20 seconds 9d11 Latch should be locked 20 seconds See Note 6

Diagnostic Code Handling

Code Measurable What is Displayed Action Taken By Control

1c1c Keypress Nothing Disables audible for affected key depression 1c2c Keyboard loop improper value Nothing Disables all outputs 1, 2 BAKE flashes 3 Disables lights and timers 1c31 Cancel key improper value Disables audible for key depression 1c6c No response from EEPROM Nothing Disables all outputs 1 1c7c Calibration value out of range “CAL” in the time digits Disables lights and timers 1c8c CRC invalid Disables all outputs for cavity 1 1d11 Sensor resistance > 2237 Ohms Nothing Disables all outputs 1 1d21 Sensor resistance > 2787 Ohms BAKE flashes 3 Completely disables oven 4 3d11 Sensor resistance > Infinite Ohms BAKE flashes 3 Cancels active cook function 3d21 Sensor resistance > 0 Ohms BAKE flashes 3 Disables all cook function for cavity 4d11 Door switch not closed when door is BAKE flashes 3 Disables all cook function for cavity locked Disables all cook function for cavity 4d51 Door switch not open or closed Nothing Disables all cook function for cavity Disables Clean and Lockout 9d11 Lock switch not closed Nothing functions 5 Disables Clean and Lockout LOCK flashes 3 functions 4, 5 Turn off light and disable light from door switch Disables Clean and Lockout functions 4

16023523 5 December 2004

©2004 Maytag Services

Component Testing Procedures

! WARNING

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

NOTES:

1 “Action Taken” applies as long as the condition exists. If the condition goes away, the control recovers. 2 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. 3 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. 4 “Action Taken” applies until there is a POR (Power On Reset [“hard reset”]). 5 If the control believes the door is locked, unlock it when the function cancels and the cavity temperature cools. 6 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. If at POR, the latch is not at a known good 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.

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Wiring Diagram and Schematic

! WARNING

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

AGR4412AD*, C*31600AD*, CGR1425AD*, MGR4451AD*, MGR4452AD*, PGR4420LD* Control Circuits

16023523 7 December 2004

©2004 Maytag Services

Wiring Diagram and Schematic

! WARNING

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

AGR4412AD*, C*31600AD*, CGR1425AD*, MGR4451AD*, MGR4452AD*, PGR4420LD* Schematic

December 2004 8 16023523

©2004 Maytag Services