Wiring Diagram

808532550 REV A EN (2017/06)
SERVICE DATA SHEET
Electric Ranges with 3XX Electronic Oven Controls
Tech Sheet Abbreviations and Terminology
EOC = Electronic Oven Control ESEC = Electronic Surface Element Control TST = Touch Sensor technology (touch control glass panel )
UIB = User Interface Board TSEC = Touch Sensor Electronic Control RTD = Resistance Temperature Device (Temp Probe or Temp Sensor)
VSC = Variable Speed Control PS = Power Supply Board (PS1, PS2, etc. ) TCO = Thermal Cut Out also “Thermo Disc” or “Thermal Limiter”
Electric Oven Control Fault Description
Fault
Code
Likely Failure Condi-
ton/Cause
Suggested Corrective Action
F10 Runaway temperature
Oven heats when no
cook cycle is pro-
grammed.
If Oven is cold:
1. If fault code is present with cold oven test oven temperature sensor probe circuit resistance. Use RTD scale found in the
tech sheet.
2. Replace probe or repair wiring connections if defective.
3. If temperature sensor probe circuit is good but fault code remains when oven is cold, replace the EOC.
If Oven is overheating:
1. If oven is severely overheating/heating when no cook cycle is programmed test oven temperature sensor probe circuit
resistance using the RTD scale found in the service tech sheet. Also verify that the temperature sensor probe in proper-
ly installed in the oven cavity.
2. Disconnect power from the range, wait 30 seconds and reapply power. If oven continues to heat when the power is
reapplied, replace the EOC.
NOTE: Severe overheating may require the entire oven to be replaced should damage be extensive.
F11 Shorted keypad or
selector switch
1. Reset poor supply to range - Disconnect power, wait 30 seconds and reapply power.
2. Check/ reset ribbon harness connections between touch panel and EOC.
3. Test keyboard circuits. Replace touch panel if defective.
4. If keyboard circuits check good, replace the EOC.
F13 Shorted oven sensor
probe circuit.
1. Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up, replace EOC.
F14 Keyboard tail failure 1. Check for damage to the ribbon connection or that it is plugged in properly.
F20 Communication failure
between oven and cook-
top control boards
1. Reset power supply to range – Disconnect power, wait 30 seconds and reapply power.
2. Check/reseat communication between oven (MACS BUS) and cooktop controller (MACS2)
3. If problem persists, replace each board individually then retest until problem clears
F30 Open oven sensor probe
circuit.
1. (F30) Check resistance at room temperature & compare to RTD Sensor resistance chart. If resistance does not match
the RTD chart, replace RTD Sensor Probe. Check Sensor wiring harness between EOC & Sensor Probe connector.
2. (F31) Check resistance at room temperature, if less than 500 ohms, replace RTD Sensor Probe. Check for shorted
Sensor Probe harness between EOC & Probe connector. If resistance is correct, replace the EOC.
F31 Shorted oven sensor
probe circuit.
F40 Communication failure
between oven and cook-
top control boards
1. Reset power supply to range – Disconnect power, wait 30 seconds and reapply power.
2. Check/reseat communication between oven (MACS BUS) and cooktop controller (MACS2)
3. If problem persists, replace each board individually then retest until problem clears
F90 Door lock motor or latch
circuit failure.
If lock motor runs:
1. Test continuity of wiring between EOC and lock switch on lock motor assy. Repair if needed.
2. Advance motor until cam depresses the plunger on lock motor switch. Test continuity of switch contacts. If switch is
open replace lock motor assembly.
3. If motor runs and switch contacts and wiring harness test good, replace the EOC.
If lock motor does not run:
1. Test continuity of lock motor windings. Replace lock motor assembly if windings are open.
2. Test lock motor operation by using a test cord to apply voltage. If motor does not operate, replace lock motor assy.
3. If motor runs with test cord check continuity of wire harness to lock motor terminals. If harness is good, replace the
EOC.
F91
F92
F93
F94
F95
Circuit Analysis Matrix
EOC RELAYS
L1 to
Bake
L1 to
Broil
L1 to Mo-
tor Door
Latch
L1 to Conv/
Speed Bake
Fan
L1 to Conv/
Speed Bake
Ind Light
Door
Switch
COM-NO
Cooktop
Lockout
Bake/ Time Bake X X*
Conv/Speed Bake X X* X X
Broil X
Clean X
Unlocked
Locking X
Unlocking X
Door Closed X
Cooktop Active X
Note: X=Check listed circuits. *=Alternates with Bake element
IMPORTANT
DO NOT REMOVE THIS BAG
OR DESTROY THE CONTENTS
WIRING DIAGRAMS AND SERVICE
INFORMATION ENCLOSED
REPLACE CONTENTS IN BAG
Resistance (ohms)
1000 ± 4.0
1091 ± 5.3
1453 ± 8.9
1654 ± 10.8
1852 ± 13.5
2047 ± 15.8
2237 ± 18.5
2697 ± 24.4
Open circuit/infinite resistance
RTD SCALE
Temperature °F (°C)
32 ± 1.9 (0 ± 1.0)
75 ± 2.5 (24 ± 1.3)
250 ± 4.4 (121 ± 2.4)
350 ± 5.4 (177 ± 3.0)
450 ± 6.9 (232 ± 3.8)
550 ± 8.2 (288 ± 4.5)
650 ± 9.6 (343 ± 5.3)
900 ± 13.6 (482 ±7.5)
Probe circuit to case ground
Resistance Temperature Detector
OVEN
LIGHT
SPEED
BAKE IND
MDL
SPEED
BAKE FAN
BAKE
BROIL
DLB - DOUBLE
LINE BREAK
NEUTRAL
15
1
BAKE
BROIL
L1
L2 IN
L2 OUT
LOCK MOTOR
DOOR SWITCH
LOCK SWITCH
COMMON
TEMPERATURE PROBE
TEMPERATURE PROBE
ELECTRONIC OVEN CONTROL
(EOC) RELAY BOARD
OVEN LAMP
NOTICE - This service data sheet is intended for use by persons having
electrical and mechanical training and a level of knowledge of these
subjects generally considered acceptable in the appliance repair trade. The
manufacturer cannot be responsible, nor assume any liability for injury or
damage of any kind arising from the use of this data sheet.
SAFE SERVICING PRACTICES
To avoid the possibility of personal injury and/or property damage, it is important
that safe servicing practices be observed. The following are examples, but without
limitation, of such practices.
1. Before servicing or moving an appliance remove power cord from electrical
outlet, trip circuit breaker to OFF, or remove fuse.
2. Never interfere with the proper installation of any safety device.
3. GROUNDING: The standard color coding for safety ground wires is GREEN
or GREEN WITH YELLOW STRIPES. Ground leads are not to be used as
current carrying conductors. It is extremely important that the service
technician reestablish all safety grounds prior to completion of service.
Failure to do so will create a potential safety hazard.
4. Prior to returning the product to service, ensure that:
• All electric connections are correct and secure.
• All electrical leads are properly dressed and secured away from sharp
edges, high-temperature components, and moving parts.
• All uninsulated electrical terminals, connectors, heaters, etc. are adequately
spaced away from all metal parts and panels.
• All safety grounds (both internal and external) are correctly and securely
reassembled.
Oven Calibration
Set the electronic oven control for normal baking at 350°F. Obtain an average
oven temperature after a minimum of 5 cycles. Press Stop, Clear, Off or Cancel
to end Bake mode.
Temperature Adjustment
1. Set EOC to bake at 550°F.
2. Within 5 seconds of setting 550°F, press and hold the bake pad for approximately
15 seconds until a single beep sounds (longer may cause F11 shorted keypad
alarm).
3. Calibration offset should appear in the display.
4. Use the slew keys to adjust the oven temperature up or down 35°F in 5°F
increments.
5. Once the desired (-35° to 35°) offset has been applied, Press Stop, Clear,
Off or Cancel.
Note: Changing calibration affects normal Bake mode. The adjustments made
will not change the Self-Cleaning cycle temperature.
Modular Control Systems
This appliance is equipped with a modular system of controls. The modular system
consists of various boards which communicate with one another to drive cooking
functions. Oven functions, if available, operate through an oven user interface (UI
or UIB) and an oven relay board. Cooktop functions, if available, operate through
a cooktop UI/UIB and a cooktop relay board. There may be additional boards
which work within the system to drive specic functions (refer to the schematics
and diagrams and this sheet). Low voltage operating and communications power
for the modular boards is provided through the wiring schemes. The boards that
generate low voltage operating and communications power depend upon the
individual control system (refer to the schematics and diagrams on this sheet).
These voltages are only the operational voltages. Do not use these voltages as
conrmation of communication between the boards. Communication occurs through
software programming on each board. This communication is not detectable by volt
ohmmeters. The programming is self-monitored and the UI displays will show error
codes based on detected failures. The individual boards are not eld repairable. See
the schematics and diagrams included on this sheet for more unit-specic details.