Maytag MER5875RA Series Datasheet

Electric Freestanding Range—Technical Information

June 2006 16027229

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)

Component Testing Procedures

!

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

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.

Component Testing Procedures

!

WARNING

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

testing requires power.

June 2006 16027229

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.

Component & Control Testing Procedures

!

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

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.

Control Testing Procedures

!

WARNING

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

testing requires power.

June 2006 16027229

5

Feature Procedure Results

H1 Control Panel Assembly Matrix

Convect

Bake

Oven

Ligh t

Cook &

Ho ld

Keep

Warm

Broil

Bake

Clean

Convect

Roas t

Clock

CANCEL

Timer

Favorite

Delay

Auto set

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

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

Control Testing Procedures

!

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

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

1

st

Primary System: 1 – Local to the control circuit board

3 – Sensor or meat probe

4 – Control input

9 – Door lock

2

nd

Measurable: d – Diagnostic: measurable parameter

c – Control related, replace control

3

rd

Secondary System: Sequential numbering

4

th

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.

Control Testing Procedures

!

WARNING

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

testing requires power.

June 2006 16027229

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