Technical Drawing
A 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. Do not attempt a product repair if you have any doubts as to your ability to
complete it in a safe and satisfactory manner.
2. Before servicing or moving an appliance, remove power cord from electric
outlet, trip circuit breaker to OFF, or remove fuse and turn off gas supply.
3. Never interfere with the proper installation of any safety device.
4. USE ONLY REPLACEMENT PARTS CATALOGED FOR THIS APPLIANCE.
SUBSTITUTIONS MAY DEFEAT COMPLIANCE WITH SAFETY
STANDARDS SET FOR HOME APPLIANCES.
5. 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 HAZARD.
6. 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 non-insulated 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.
• All panels are properly 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. The oven calibration can not
be modied.
ELECTRONIC OVEN CONTROL (EOC) FAULT CODE DESCRIPTIONS
Failure Code Likely Failure Condition/Cause Suggested Corrective Action
Front Panel LED
1 2 3 4 5 6 7
X X
Control has sensed a potential
runaway oven condition.
Control may have shorted relay,
RTD sensor probe may have gone
bad.
Check RTD sensor probe and replace if necessary. If oven is overheating,
disconnect power. If oven continues to overheat when power is reapplied,
replace control board.
Front Panel LED
1 2 3 4 5 6 7
X X
Incorrect Micro ID, controller self
check failed.
Replace the control board.
Front Panel LED
1 2 3 4 5 6 7
X X
Incorrect EEPROM Checksum,
control internal checksum
may have been corrupted.
Disconnect power, wait 30 seconds and reapply power. If fault returns upon
power-up, replace control board.
Front Panel LED
1 2 3 4 5 6 7
X X
Front Panel LED
1 2 3 4 5 6 7
X X
Open RTD sensor probe / wiring
problem.
Shorted RTD sensor probe / wiring
problem.
- Check wiring in probe circuit for possible open condition.
- Check RTD resistance at roon temperature (compare to probe resistance
chart). If resistance does not match the chart, replace RTD sensor probe.
- Let the oven cool down and restart the function.
- If problem persist, replace control board.
Front Panel LED
1 2 3 4 5 6 7
X X
Problem with the communication
link between the oven control
board and the variable speed
convection board.
- Check wiring between P18 on oven control and P1 on the variable speed
convection board.
- Check variable speed convection board supplied correctly: should have
+5VDC between pin 3 and 4 of P1.
- If wiring is good, replace the variable speed convection board.
- If problem persist, replace the oven control board.
Front Panel LED
1 2 3 4 5 6 7
X X
Oven control not properly
calibrated.
- The electronic oven control has not been properly calibrated at the factory.
- Replace the oven control board.
Front Panel LED
1 2 3 4 5 6 7
X X X
Door motor mechanism failure. - Turn off power for 30 seconds, then turn on power.
- Check wiring of lock motor, lock switch circuits.
- Unplug the lock motor from the board and apply power (L1) directly to the
lock motor. If the motor does not rotate, replace the lock motor assembly.
- Check lock switch for proper operation (do they open and close, check with
ohmmeter). The lock motor may be powered as in above step to open and
close lock switch. If the lock switch is defective, replace motor lock assembly.
- If all above steps fail to correct situation, replace the control board.
LED Legend:
1 - Bake
2 - Convection Bake
3 - Convection Roast
4 - Broil
5 - Clean
6 - Lock
7 - Remove racks
Circuit Analysis
Matrix
EOC Relays 570 Gas
Door Switch
Contacts
COM-NO
L1 to
Bake
L1 to
Broil
L1 to Motor
Door Latch
L1 to Convection
Fan
L1 to Convection
Heating Element
L1 to Oven
Lamps
Cooling Fan
High
Cooling fan
Low
Bake
x x*
X¹ X³
Convection Bake
x x x
X³
Convection Roast
x x*
X¹ X³
Broil
x
X³
Self-Clean
x x
X³
Locking
x
Unlocking
x
Door Open
x o
Door Closed
o x
Oven Lamps(ON)
x
Notes: X = Circuit contact closed. O = Circuit contacts open. X¹ = During preheat. X³=Temperature dependent x*= Fan comes on after 6 minutes.
p/n 809008401 Rev A (1701) EN
SERVICE DATA SHEET
Gas Range with ES 570 Electronic Oven Control
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
IMPORTANT
DO NOT REMOVE THIS BAG
OR DESTROY THE CONTENTS
WIRING DIAGRAMS AND SERVICE
INFORMATION ENCLOSED
REPLACE CONTENTS IN BAG
Electronic oven control relay board
P4
K3
P8
P5
P9
P14
K1 K2
P6
K4
K5
K11
P1 P3 P2
P18
L1
Bake
Broil
Convection Element
N
MDL
Cooling fan low
Oven lamp switch
Door switch
MDL switch
Oven probe
Oven probe
O
ven lamp switch
1
11
To display board
To power supply board
P9-1 to P9-3 to potentiometer selector
P9-4 to P9-6 to temperature potentiomenter
P10 P11 P12 P13
Conv.
Elem.
BroilBake
1
Cooling fan high
This display board serves for Freestanding Range
D1- Bake Mode Indicator Light
D2- Convection Bake Mode Indicator Light
D3- Convection Roast Mode Indicator Light
D4- Broil Mode Indicator Light
D5- Clean Mode Indicator Light
D6- Lock Mode Indicator Light
D7- Racks Indicator Light
D1
D2
D3
D4
D5
D6
D7
Electronic Display Board
Goes to P8 oven control.
P1
P2
U1
Q3
U4
P6
Triac
Board
1
1
L1
N
Oven light
P1 to oven control relay board