Maytag 11 Series Technical Information

June 2006 16027229 © 2006 Maytag Services Replaces 16026900 1 MER5875RA* • 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 16025644 for detailed installation, operating, testing, troubleshooting, and disassembly instructions. CAUTION ! All safety information must be followed as provided in Service Manual 16025644. ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to range before servicing, unless testing requires power. *Rating of 208 VAC is approximately 80% of 240 VAC value. Model MER5875RA* Power Source @ 240 V (208 V) Electrical rating 11.6 (8.7) Amperage 40 Amp Frequency 60 Hz Element Wattage @ 240 V (208 V*) Ribbon element, left rear 1,200 Ribbon element, right rear 1,200 Ribbon element, left front, double 1,200/1,200 Ribbon element, right front, triple 2,200/1,100/900 Ribbon element, center rear, warming 100 Oven Wattage @ 240 V (208 V) Bake 6 pass 3,600 (2,900) Broil 6 pass 3,600 (2,900) Convection 1,850 (1,500) Oven Interior Dimensions in. (cm) Height 19 (48.26) Width 24 1/4 (61.6) Depth 19 1/2 (49.53) Product Exterior Dimensions in. (cm) Height overall 47 3/8 (120.33) Width 29 7/8 (75.88) Depth (including door) 26 5/8 (67.75) Depth oven door closed with handle 28 1/2 (72.39) Height to cooking surface 36 (91.4) Unit Features 5.3 cubic foot Yes Interior oven light Yes Sabbath mode Yes Child lockout Yes 12 hour automatic shut off Yes Clock and Timer Yes Hidden bake element Yes Triple element Yes Dual element Yes Convection Yes Weight lbs. (kg) Crated 209 (94.80) Uncrated 224 (101.60)

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless testing requires power. 16027229 June 2006 Replaces 16026900 © 2006 Maytag Services 2 Illustration Component Test Procedure Results Oven light socket (A-15 bulb shape) Measure voltage at oven light ................ Remove one wire from receptacle and test resistance of terminals .................... 120 VAC, see wiring diagram for terminal identification. Continuity with bulb inserted. If voltage is not present at oven light, check wiring or light switches. Indicator lights Measure voltage at indicator light........... If voltage is present and light does not work, replace light. If voltage is not present at indicator light, check wiring. Rocker switch Measure continuity of switch positions: Open .................................................. Closed ................................................ Infinite. Continuity. COM NO NC Door lock switch (part of autolatch assembly) Switch connection in the following positions: Door latch locked................................ Door latch unlocked............................ COM-NO=Infinity, COM-NC=Continuity. COM-NO=Continuity, COM-NC=Infinity. NC NO C Door plunger switch (door position switch) Switch connection in following positions: Door open........................................... Door closed ........................................ COM-NO=Infinity. COM-NO=Continuity. Autolatch assembly with switch Disconnect wires and test for continuity per wiring diagram ................. See wiring diagram for schematic layout. Door latch assembly Disconnect wires and test for continuity per wiring diagram ................. See wiring diagram for schematic layout. Refer to Parts Manual for correct autolatch switch associated with the correct manufacturing number. Broil element Disconnect wire leads to element and measure resistance of terminals ............ Measure voltage at element................... Approximately 15.5 Ω. 240 VAC. See wiring diagram for terminal identification. If voltage is not present at element, check wiring. Bake element Disconnect wire leads to element and measure resistance of terminals ............ Measure voltage at element................... Approximately 18.5 Ω. 240 VAC. See wiring diagram for terminal identification. If voltage is not present at element, check wiring. Convection element Disconnect wire leads to element and measure resistance of terminals ............ Measure voltage at terminals................. Approximately 30 Ω - cold. 240 VAC. See wiring diagram for terminal identification. If voltage is not present at element, check wiring. Convection motor Verify supply voltage.............................. Disconnect wire leads to motor and measure resistance between terminals (verify terminals are not shorted to chassis).................................................. 120 VAC. Approximately 400 Ω. Limiter Normally Closed Verify proper operation. Open ................ 320°F ....................... Closed .............. Manual reset ............ Infinite. Continuity.

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless testing requires power. June 2006 16027229 © 2006 Maytag Services Replaces 16026900 3 Illustration Component Test Procedure Results L2 L1 H2 P H1 1 2 3 4 5 Infinite switch Remove wiring from H1 and H2. Connect volt/ohms meter to H1 and H2. Measure the following for voltages at LO, MED, HI:..................................................... Voltage between H1 and H2....................... Approximate Time On Time Off LO 5% 95% MED (4-5) 35% 65% HI 100% 0% 240 VAC. If not, replace switch. Infinite switch Remove wiring from 2 and 4. Connect volt/ohms meter to 2 and 4. Measure the following for voltages at LO, MED, HI:..................................................... Voltage between 2 and 4............................ Approximate Time On Time Off LO 5% 95% MED (4-5) 35% 65% HI 100% 0% 240 VAC. If not, replace switch. L2 L1 H2 P H1 1 2 3 4 5 Infinite switch, low heat Remove wiring from H1 and H2. Connect volt/ohms meter to H1 and H2. Measure the following for voltages at LO, MED, HI:..................................................... Voltage between H1 and H2....................... Approximate Time On Time Off SIMMER 5% 95% MED (5) 55% 45% HI 100% 0% 240 VAC. If not, replace switch. Infinite switch, dual element Remove wiring from H1 and H2. Connect volt/ohms meter to H1 and H2. Measure the following for voltages at LO, MED, HI:..................................................... Voltage between H1 and H2....................... Approximate Time On Time Off LO 8% 92% MED (4-5) 35% 65% HI 100% 0% 240 VAC. If not, replace switch. Ribbon element, 1200 W Disconnect wiring to element and measure cold resistance of terminals ......... Measure voltage at element ....................... Approx. 44.3 to 48.9 Ω. 240 VAC. If voltage is not present, check wiring. Ribbon element, triple, 3000 W (900 W Inner, 1100 W Middle, 2200 W Outer) Disconnect wiring to element and measure cold resistance of terminals ......... Measure voltage at element ....................... 2200W (Inner): .... Approx. 24 to 28 Ω. 1100W (Middle):.. Approx. 49 to 55 Ω. 900W (Outer): ..... Approx. 60 to 68 Ω. 240 VAC. If voltage is not present, check wiring. Ribbon element, dual, 2400 W (1200 W Inner, 1200 W Outer) Disconnect wiring to element and measure cold resistance of terminals ......... Measure voltage at element ....................... 1200W (Inner): .... Approx. 44 to 49 Ω. 1200W (Outer): ... Approx. 44 to 49 Ω. 240 VAC. If voltage is not present, check wiring. (Series 11) Ribbon element, warming, 100 W Disconnect wiring to element and measure cold resistance of terminals ......... Measure voltage at element ....................... Approx. 133 to 147 Ω. 240 VAC. If voltage is not present, check wiring.

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless testing requires power. 16027229 June 2006 Replaces 16026900 © 2006 Maytag Services 4 Illustration Component Test Procedure Results (Series 12) Ribbon element, warming, 100 W Disconnect wiring to element and measure cold resistance of terminals ........................... Measure voltage at element........................... Approx. 141 to 155 Ω. 240 VAC. If voltage is not present, check wiring. Temperature sensor Disconnect wire leads to sensor and measure resistance ....................................... Approximately 1080 Ω at room temperature 80° F. Control Feature Procedure Results H1 Oven temperature adjustment Press BAKE pad. Enter 550 on the digit pad. Immediately press and hold BAKE pad for 3 to 5 seconds. Oven can be adjusted from -35 to +35 degrees in 5-degree increments by pressing AUTOSET pads. To avoid over adjusting the oven, move temperature 5 degrees each time. Wait 4 seconds for the data entry timer to expire to accept the change. Temperature adjustment will be retained even through a power failure. Increasing or decreasing oven temperature does not affect self- cleaning temperature. H1 Temperature display Press and hold CANCEL and BAKE pads for 3 to 5 seconds. Allows user to change temperature display between °F or °C. H1 Clock display Press and hold CANCEL and CLOCK pads for 3 to 5 seconds. Allows user to turn clock display on or off. H1 24-hour clock Press and hold CANCEL and FAVORITE pads for 3 to 5 seconds. Allows user to toggle clock display between 12-hour or 24-hour format. H1 Factory default Press and hold CANCEL and KEEP WARM pads for 3 to 5 seconds. Allows user to reset clock to factory settings. H1 12-hour shutoff Control cancels cooking operations and disables relay drives 12 hours after last pad touch. See Sabbath mode to disable. H1 Sabbath mode Hold CLOCK pad for 3 to 5 seconds to activate Sabbath mode. Hold CLOCK pad for 3 to 5 seconds to disable Sabbath mode. Desired bake function must be initiated before entering Sabbath mode. "SAb" flashes for 5 seconds, then remains on until timed-out or canceled. (Status SAb is not fault code 5A6.) All pad inputs are disabled except CANCEL and CLOCK. 12-hour shutoff is disabled, allowing bake mode operation for 72 hours. The oven light is not disabled. H1 Child lockout Press and hold CANCEL and COOK & HOLD pads for 3 to 5 seconds. "OFF" displays in temperature display area. "LOCK" flashes while door is locking. To reactivate control, press and hold CANCEL and COOK & HOLD pads for 3 to 5 seconds. This safety feature prevents children from accidentally programming the oven. The electronic oven control is disabled. Child lockout features must be reset after a power failure. H1 Diagnostic code display Press and hold AUTOSET pad when applying power to the range. Cycle through the codes using the number pads 1 through 5. The last 5 diagnostic codes will be stored in the non-volatile memory. See "Description of Error Codes" for explanation.

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless testing requires power. June 2006 16027229 © 2006 Maytag Services Replaces 16026900 5 Feature Procedure Results H1 Control Panel Assembly Matrix Convect Bake Oven Light Cook & Hold Keep Warm Broil Bake Clean Convect Roast Clock CANCEL Timer Favorite Delay Autoset Continuity is indicated as follows: 1000 – 6600 Ω for Cancel pad. 1000 – 15000 Ω for All other pads. 1 16 9 8 Pad 1 2 3 4 5 6 7 8 9 0 Cancel Clock Cook & Hold Broil Bake Convect Bake Convect Roast Clean Keep Warm Favorites Timer Light Trace 13 & 15 12 & 13 12 & 15 4 & 14 4 & 12 4 & 10 5 & 13 5 & 12 5 & 10 10 & 12 1 & 2 or 1 & 3 4 & 5 4 & 7 5 & 7 10 & 11 4 & 13 7 & 14 7 & 15 11 & 12 13 & 14 5 & 14 7 & 13 Measurement Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity Continuity H1 Control: Relay Logic COOKING MODE BAKE BROIL CONVECT ELEMENT CONVECT FAN OVEN LIGHT IDLE r r r r “ BAKE PREHEAT z r r r “ BAKE z r r r “ BROIL PREHEAT r z r r “ BROIL r z r r “ CLEAN PREHEAT z z r r r CLEAN z r r r r KEEP WARM z r r r “ CONVECT BAKE PREHEAT z r z z “ CONVECT BAKE z r z z “ KEY INDEX ± - OFF z - ON “ - ON OR OFF (DETERMINED BY USER INPUT) ! - TEMPERATURE CONTROLLED

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless testing requires power. 16027229 June 2006 Replaces 16026900 © 2006 Maytag Services 6 "Quick Test" Mode for H1 Electronic Range Control (ERC) 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 to 5 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: Press the pad once to activate the response. Press the pad a second time to deactivate the response. NOTE: This mode must be entered within the first 5 minutes after power up. NOTE: If the temperature sensor is greater than 400° F or if the temperature sensor reaches 400° F while under test, the Quick Test mode will be disabled. H1 Control: Display Pad Response BAKE................................... Bake relay activated BROIL ................................. Broil relay activated KEEP WARM ...................... Bake DLB and Broil DLB activated CLEAN ................................ MDL relay activated COOK & HOLD ................... Displays last diagnostic code FAVORITE .......................... Displays EEPROM version number TIMER................................. Displays main code version number CLOCK................................ All display segments illuminated OVEN LIGHT ...................... Oven light activated CANCEL.............................. Exit Quick Test mode 1 .......................................... Even segments on 2 .......................................... Odd segments on 3 .......................................... N\A 4 .......................................... Bake relay activated 5 .......................................... Broil relay activated 6 .......................................... Convection relay activated 7, 8, 9 .................................. N/A AUTOSET ........................... Steps through last 5 diagnostic codes H1 Control: 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 3 – Sensor or meat probe 4 – Control input 9 – Door lock 2nd Measurable: d – Diagnostic: measurable parameter c – Control related, replace control 3rd Secondary System: Sequential numbering 4th Oven Cavity: 1 – Upper oven (or single cavity oven) 2 – Lower oven c – Control specific Diagnostic Code Display Mode can be activated by pressing and holding the AUTOSET pad for 3 to 5 seconds at power-up. Diagnostic Code Display Mode can only be started while powering up the control.

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless testing requires power. June 2006 16027229 © 2006 Maytag Services Replaces 16026900 7 H1 Control: 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) Should 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 H1 Control: Diagnostic Code Handling Code Measurable What is Displayed Action Taken By Control 1c1c Keypress Nothing Disables audible for affected key depression Disables all outputs 1, 2 Disables lights and timers 1c2c Keyboard loop improper value Nothing Disables audible for key depression 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 time digits Completely disables oven 4 1c8c CRC invalid Nothing Cancels active cook functions 1d11 Sensor resistance > 2237 Ohms BAKE flashes 3 Disables all cook functions for cavity 1d12 Sensor resistance > 2237 Ohms BAKE flashes 3 Disables all cook functions for cavity 1d21 Sensor resistance > 2787 Ohms BAKE flashes 3 Disables all cook functions for cavity 1d22 Sensor resistance > 2787 Ohms BAKE flashes 3 Disables all cook functions for cavity 3d11 Sensor resistance > Infinite Ohms BAKE flashes 3 Disables all cook functions for cavity 3d12 Sensor resistance > Infinite Ohms BAKE flashes 3 Disables all cook functions for cavity 3d21 Sensor resistance > 0 Ohms BAKE flashes 3 Disables all cook functions for cavity 3d22 Sensor resistance > 0 Ohms BAKE flashes 3 Disables all cook functions 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 functions 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 SaB (5a6) Sabbath Mode active SaB Disables all functions until Sabbath Mode deactivated 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

! WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to range before servicing, unless testing requires power. 16027229 June 2006 Replaces 16026900 © 2006 Maytag Services 8 H1 Control: Notes 1 "Action Taken" applies as long as the condition exists. If the condition clears, 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, it will attempt to 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. • 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. • The detection for latch faults is in two stages. The first stage is to let the control recover without moving the latch. Then: • 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 the 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 revolutions). If it cannot, the control faults and the latch moves 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 attempted, the control attempts to unlock the latch according to the procedures in these notes.

! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to range before servicing, unless testing requires power. June 2006 16027229 © 2006 Maytag Services Replaces 16026900 9 Schematic (Control Circuits) MER5875RAS Series 11, MER5875RAF/B Series 12, MER5875RAN Series 13

! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to range before servicing, unless testing requires power. 16027229 June 2006 Replaces 16026900 © 2006 Maytag Services 10 Wiring Diagram MER5875RAS Series 11, MER5875RAF/B Series 12, MER5875RAN Series 13

! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to range before servicing, unless testing requires power. June 2006 16027229 © 2006 Maytag Services Replaces 16026900 11 Schematic (Control Circuits,) MER5875RAS Series 12, MER5875RAF/B Series 13, MER5875RAN Series 14

! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to range before servicing, unless testing requires power. 16027229 June 2006 Replaces 16026900 © 2006 Maytag Services 12 Wiring Diagram MER5875RAS Series 12, MER5875RAF/B Series 13, MER5875RAN Series 14

! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to range before servicing, unless testing requires power. June 2006 16027229 © 2006 Maytag Services Replaces 16026900 13 Schematic (Control Circuits) MER5875RAS Series 13, MER5875RAF/B Series 14, MER5875RAN Series 15

! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to range before servicing, unless testing requires power. 16027229 June 2006 Replaces 16026900 © 2006 Maytag Services 14 Wiring Diagram MER5875RAS Series 13, MER5875RAF/B Series 14, MER5875RAN Series 15