Wiring Diagram
ELECTRONIC OVEN CONTROL (EOC) FAULT CODE DESCRIPTIONS
Fault
Code
Description of Error Code Suggested Corrective Action
F01
F02
F04
F05
Touch panel failure Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up replace the touch panel.
F03 The oven user interface board is incor-
rectly congured.
Replace the oven user interface board. Make sure you install the latest revision available for this model.
F10 Oven temperature runaway: the cavity
temperature has been detected in
excess of the maximum safe operating
temperature.
1. If oven is overheating, disconnect power. Check oven temperature probe (RTD) and replace if necessary.
2. If the oven temperature probe is good and if oven continues to overheat when power is reapplied, replace the oven
relay board.
F11 Stuck key: a key has been detected
has pressed continuously for 30 sec-
onds or more.
1. If a key was pressed inadvertently for a long time this error code will be displayed. Make sure there is nothing (water,
utensils) in contact with the keyboard. The fault code should go away once the key is released and the Stop key is
pressed. If the F011 error comes back when a key is pressed it means the error condition is still there. If the F011
error does not come back it means the error condition is gone and the oven can be used.
2. If the fault code cannot be cleared, test the wiring harness between oven user interface board (connector I2C1 or
I2C2) and touch panel (connector I2C1 or I2C2).
3. If the fault code cannot be cleared and the wiring is good, the touch panel is most likely defective: replace the touch
panel.
4. If changing the touch panel did not x the problem replace the oven user interface board.
F12 Keyboard conguration alarm: the oven
user interface board received from the
touch panel a key code that does not
match the key map.
1. Verify the unit has the proper oven user interface board and touch panel, based on the model number and parts
catalog.
2. Replace the oven user interface board.
3. If the problem persists replace the touch panel.
F13 Data written to non-volatile memory
has failed verication
Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up replace the oven user interface.
F15 Keyboard error Disconnect power, wait 30 seconds and reapply power. If fault returns upon power-up replace the touch panel.
F17 The oven user interface board is un-
able to congure the touch panel.
1. Disconnect power to the unit, wait 30 seconds, then reapply power.
2. If fault returns, verify harness going to I2C1 or I2C2 connector of the touch panel.
3. Verify the unit has the proper oven user interface board and touch panel, based on the model number and parts
catalog.
4. If fault persists, replace the oven user interface.
5. If fault persists, replace the touch panel.
F18 Oven relay board failure (wiggler) Replace the oven relay board.
F19 The oven user interface board is un-
able to congure the oven relay board
1. Disconnect power to the unit, wait 30 seconds, then reapply power.
2. If fault returns, verify connection between the oven user interface board (MACS1 or MACS2 connector) and the oven
relay board (connector J3 or J4).
3. Verify the unit has the proper oven user interface board and oven relay board, based on the model number and parts
catalog.
4. If fault persists, replace oven user interface board.
5. If fault persists, replace the relay board.
F22 Communication failure between the
oven user interface board and the oven
relay board
1. Disconnect power, wait 30 seconds and reapply power. Check if error condition is still there.
2. Test wiring harness between oven user interface board (connector MACS1 or MACS2) and oven relay board (con-
nector J3 or J4).
3. If wiring harness is good replace oven relay board.
4. If the problem persists replace the oven user interface.
F23 Communication failure between the
oven user interface board and the
glass touch panel
1. Disconnect power, wait 30 seconds and reapply power. Check if error condition is still there.
2. Test wiring harness between oven user interface board (connector I2C1 or I2C2) and touch panel (connector I2C1 or
I2C2).
3. If wiring harness is good replace touch panel.
4. If the problem persists replace the oven user interface.
F25
F27
The communication between the over
user interface and the oven relay board
cannot be initiated.
1. Disconnect power to the unit, wait 30 seconds, then reapply power.
2. If fault returns, verify connection between the oven user interface board (MACS1 or MACS2 connector) and the oven
relay board (connector J3 or J4).
3. Verify the unit has the proper oven user interface board and oven relay board, based on the model number and parts
catalog.
4. If fault persists, replace relay board.
5. If fault persists, replace the oven user interface board.
F28
F29
The communication between the over
user interface and the touch panel
cannot be initiated.
1. Disconnect power to the unit, wait 30 seconds, then reapply power.
2. If fault returns, verify touch panel is connected (verify harness going to I2C1 or I2C2 connector) and is getting power
from the oven user interface.
3. Verify the unit has the proper oven user interface board and touch panel, based on the model number and parts
catalog.
4. If fault persists, replace the touch panel.
5. If fault persists, replace the oven user interface.
F30 Open oven temperature sensor (RTD) 1. Check probe circuit wiring for possible open or short condition.
2. Verify RTD resistance at room temperature (compare to probe resistance chart). If resistance does not match the
chart, replace the RTD probe.
3. If the problem persists replace the oven relay board.
F31 Shorted oven temperature probe (RTD)
F33 Meat probe temperature sensor short-
ed or too hot
1. The error is triggered if the meat probe sees a temperature in excess of 392°F. Make sure the meat probe was not
used in such way that it could have seen such temperature. If the tip of the probe is not inserted in the meat it will
see the cavity temperature, which can be higher than 392°F (depending on the setpoint) and trigger the alarm.
2. When the meat probe is connected to the socket inside the oven cavity, if the meat probe is not fully inserted into the
socket it may short the contacts and cause the error. Make sure the probe is inserted as much as it can.
3. Verify meat probe resistance at room temperature. Compare to meat probe resistance chart. If the meat probe does
not match the chart, replace it.
4. If the above steps failed to correct the problem, replace the oven relay board.
F45 Upper oven cooling fan speed too low 1. Check if the cooling fan blades are blocked.
2. Conrm tachometer harness is connected on fan and on oven control.
3. Replace cooling fan.
4. Replace oven control.
F46 Upper oven cooling fan speed too high 1. Check for mechanical obstruction in the air path.
2. Replace cooling fan.
3. Replace oven control.
F47 Lower oven cooling fan speed too low 1. Check if the cooling fan blades are blocked.
2. Conrm tachometer harness is connected on fan and on oven control.
3. Replace cooling fan.
4. Replace oven control.
F48 Lower oven cooling fan speed too high 1. Check for mechanical obstruction in the air path.
2. Replace cooling fan.
3. Replace oven control.
F50 A/D Out of Range: the oven relay
board is unable to read the status of
the switches (door, MDL)
1. Check to ensure that the connections between the door switch, MDL and temp probes are properly connected. This
includes all splices and junctions.
2. If the above step failed to correct the problem, replace the oven relay board.
F90 Motor Door Lock mechanism failure.
The oven control does not see the
Motor Door Lock running.
1. Disconnect power to the unit, wait 30 seconds, then reapply power. Try again to make the door lock or unlock (ex:
initiate a Lockout or a Clean cycle).
2. Check if the Lock Motor is running or not. If it is not running, test the wiring between the Lock Motor and the oven re-
lay board. If the wiring is good, check if there is 120VAC at the motor when it is expected to run to see if the failure
originates from a bad motor (120VAC present but not turning) or a problem with the relay board (J20 pin 10 on the
oven relay board is the output to the Lock Motor). The Lock Motor can also be tested by applying 120VAC directly
to the motor (unplug it from the relay board rst). If the Lock Motor does not run when 120VAC is applied replace the
Lock Motor Assembly. If it is the relay board that does not provide 120VAC to the Lock Motor replace the oven relay
board.
3. If the Lock Motor is running but the oven control cannot nd the locked or unlocked position (ex: motor turns continu-
ously until F90 fault code is generated) the Lock Switch needs to be veried. Check wiring between Lock Switch and
oven relay board. Verify with ohmmeter if the switch makes contact properly (verify continuity with ohmmeter when
the switch is pressed). If the Lock Switch is defective replace the Motor Lock Assembly.
4. If all above steps failed to correct the situation, replace the oven relay board.
F95 Motor Door Lock mechanism failure.
The Motor Door Lock does not stop
running or the Lock Switch sends an
invalid signal.
1. The problem can be caused by a faulty Lock Switch or by a defective oven relay board. If the Motor Door Lock is
always running (as if the relay controlling it is stuck closed) replace the oven relay board.
2. If the motor is not always running replace the Motor Lock Assembly.
F96 The oven door has been detected open
during a Self Clean cycle.
1. This error occurs if the door switch has lost its contact during a Self Clean cycle. Make sure the oven door closes
well and fully presses on the door switch plunger when the door is locked, and no one attempted to pull on the oven
door during the Self Clean cycle.
2. Test continuity of wiring between the door switch and the oven relay board, make sure the door switch is well con-
nected. With an ohmmeter, verify the switch is closed when the plunger is pressed. If the door switch is found to be
defective replace the door switch.
3. If the switch and wiring are good and the problem persists, replace the oven relay board.
ELECTRONIC OVEN CONTROL (EOC) FAULT CODE DESCRIPTIONS
Fault
Code
Description of Error Code Suggested Corrective Action
UPPER OVEN
CIRCUIT
ANALYSIS
MATRIX
Elements
Door Motor
J13-5 (K13)
Light
J13-1 (K9)
Conv. Fan
Low J13-4 (K12)
High J12-5 (K6)
Door
Switch
J5-7, J5-8
DLB
L2 out
(K1)
Cooling Fan
Low J13-2 (K10)
High J13-3 (K11)
Catalyst
“Air Guard”
J12-6 (K5)
Bake
P7 (K3)
Broil
K2
Conv.
P8 (K4)
Bake X X X X X X X
Broil X X X
Conv. Bake X X X X X X X
Conv. Roast X X X X X X X
Clean X X X X X X
Locking X
Locked
Unlocking X
Unlocked
Light X
Door Open X X
Door Closed
Air Guard
(with key press) X X X X
NOTES: Bake, broil, and convection elements alternate cycles. Convection fans may run during preheat and may run intermittently during non-convec-
tion functions to improve cooking performance.
LOWER OVEN
CIRCUIT
ANALYSIS
MATRIX
Elements
Door Motor
J14-1 (K23)
Light
J14-6
(K18)
Conv. Fan
Low J14-3 (K21)
High J14-2 (K22)
Door
Switch
J26-3, J26-4
DLB
L2 out
(K14)
Cooling Fan
Low J14-5 (K19)
High J14-4 (K20)
Catalyst
“Air Guard”
J12-6 (K5)
Bake
P12
(K16)
Broil
K15
Conv.
P13
(K17)
Bake X X X X X X X
Broil X X X
Conv. Bake X X X X X X X
Conv. Roast X X X X X X X
Clean X X X X X X
Locking X
Locked
Unlocking X
Unlocked
Light X
Door Open X X
Door Closed
Air Guard
(with key press) X X X X