SERVICE DATA SHEET Electronic Oven Control (rear view)

SERVICE DATA SHEET Electronic Oven Control (rear view)
Electronic Oven Control (rear view)
SERVICE DATA SHEET
E.O.C. Electrical Connections
P5 Connections
Electric Ranges with ES 330/335 Electronic Oven Controls
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.
4.
SAFE SERVICING PRACTICES
Set the electronic oven control for normal baking at 350°F. Obtain an average oven
temperature after a minimum of 5 cycles. Press Stop, Cancel or Clear/Off to end
bake mode.
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.
2.
3.
Before servicing or moving an appliance remove power cord
from electrical outlet, trip circuit breaker to OFF, or remove fuse.
Never interfere with the proper installation of any safety device.
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.
E.O.C. Control Connections
Cooktop Lockout PCB (some models)
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.
P8
P5
Oven Calibration
Temperature Adjustment
1.
2.
3.
4.
5.
Set EOC to bake at 550°F.
Within 5 seconds of setting 550°F, press and hold the Bake pad for
approximately 15 seconds until a single beep is heard (longer may cause F11
shorted keypad alarm).
Calibration offset should appear in the display.
Use the slew keys to adjust the oven temperature up or down 35°F in 5°F
increments.
Once the desired (-35° to 35°) offset has been applied, press Stop, Cancel or
Clear/Off.
Electronic Oven Control Fault Code Descriptions
Fault
Code
Likely failure
condition/cause
F10
Runaway temperature.
Oven heats when no cook
cycle is programmed.
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 properly 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.
2.
3.
4.
F12
F13
EOC Internal software error
or failure.
Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up, replace EOC.
F30
Open oven sensor probe
circuit.
F31
Shorted oven sensor probe
circuit.
1. (F30) Check resistance at room temperature & compare to RTD Sensor resistance chart. If resistance is correct replace the EOC. 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.
F90
F91
F92
F93
F94
F95
Door lock motor or latch
circuit failure.
Note: Changing calibration affects normal Bake mode. The adjustments made will not
change the Self-Cleaning cycle temperature.
Simmer Select PCB (some models)
P1
J1
P8 Cooktop Lockout Connections
(some models)
Suggested Corrective Action
Reset power supply to range - Disconnect power, wait 30 seconds and reapply power.
Check/reseat ribbon harness connections between touch panel and EOC.
Test keyboard circuits. Replace touch panel if defective.
If keyboard ciruits check good replace the EOC.
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 assemblyy.
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.
Circuit
Analysis
Matrix
L1 to
Conv/Speed
Bake Ind Light
MDL
(some models)
Resistance
Temperatre
Detector
IMPORTANT
RTD SCALE
Temperature (°F)
Resistance (ohms)
32 ± 1.9
1000 ± 4.0
75 ± 2.5
1091 ± 5.3
DO NOT REMOVE THIS BAG
OR DESTROY THE CONTENTS
250 ± 4.4
1453 ± 8.9
350 ± 5.4
1654 ± 10.8
WIRING DIAGRAMS AND SERVICE
INFORMATION ENCLOSED
450 ± 6.9
1852 ± 13.5
550 ± 8.2
2047 ± 15.8
650 ± 9.6
2237 ± 18.5
900 ± 13.6
2697 ± 24.4
REPLACE CONTENTS IN BAG
p/n 316904448 (1011)
(some models)
(some models)
(some
models)
General Troubleshooting Diagram
General Troubleshooting Schematic
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