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Testing Procedures
ERC Warnings and Failure Codes
The Electronic Range Control is capable of detecting
certain failures within the ERC, along with oven
temperature sensor and self clean door latch switch.
The warnings and failure codes which may appear on the
display:
If "d o o r" flashes in display, switch positions can only
be displayed in Quicktest mode by touching clean pad,
as shown below:
0
both switches are open
1
unlock switch closed, lock switch open
2
lock switch closed, unlock switch open
3
both switches are closed
DIGIT FAILURE DISPLAY
F0
loss of safety signal - Verify glass to adaptor board
connections, Replace Adaptor Board
F1
watchdog circuit problem - Replace ERC
F2
oven cavity over temperature - Ckeck Sensor Wiring,
Sensor, and Temperature Limiter
F3
open sensor or sensor circuit (>3000) - Check Sensor
Resistance and Wiring
F4
shorted sensor or sensor circuit (<500) - Check Sensor
Resistance and Wiring
F7
shorted key - Verify glass to adaptor board connection,
Replace Glass Panel
F9
motorized door lock error - Check Latch Switch
FF
door motor supervision problem - Check Latch
Switch and Door Motor
Temperature Calibration Offset
The ERC incorporates ± 35°F. calibration offset
capabilities for the oven. This adjustment will not effect
the cleaning cycle temperature and will remain in
memory if power is interrupted. Follow the procedures
as listed to calibrate oven.
1. Press the "BAKE" push pad.
2. Press apropriate "SLEW" pad until a temperature
between 500° - 550° is displayed. Quickly, before
the ERC initiates the bake function, press and hold
the "BAKE" push pad. After approximately four
seconds the display will show "00" or the offset
temperature that was previously programmed into
the ERC.
3. Press apropriate "SLEW" pad to show the desired
offset temperature in the display up to ± 35°F. in 5°
increments.
4. Press the "CANCEL" pad to enter desired offset
temperature.
Bake - Broil - Convection Element Testing
1. Disconnect power to oven.
2. Remove fasteners securing lower rear access panel.
3. Remove wire connector from element.
4. Attach ohmmeter leads to each of the element
terminals. Set ohmmeter to RX1 or RX10 scale.
5. Low ohms or continuity should be indicated.
RS2320001 Rev. 2
DISCONNECT POWER BEFORE SERVICING, UNLESS TESTING REQUIRES IT.
Oven Temperature Sensor
The oven temperature sensor can be checked by using
the "Quick Test Mode" covered in this section of manual
or detail testing can be accomplished as follows.
The oven temperature sensor is mounted in the oven
cavity and electrically connected to the ERC:
J4 Connector
Pins 5 - 8
Sensor resistance can be checked by removing the
sensor interconnect harness plug from the ERC and
inserting ohmmeter leads into the harness connector
plug. A resistance reading of approximately 1100 ohms
should be indicated at ambient room temperature (75°F.).
If a higher resistance is indicated then remove sensor
from oven, disconnect sensor from harness at plug, and
recheck sensor resistance to assure that the problem is
in the sensor and not in the interconnect harness or due
to a bad connection. NOTE: Sensor resistance will
increase if held in your hand.)
Auto Latch Motor
Do not remove latch motor from latch assembly. If latch
motor is defective, replace latch assembly.
1. Disconnect power.
2. Remove screws securing maintop to frame, raise
maintop , and secure.
3. Disconnect lead wires from latch motor.
4. Connect jumper cord leads to latch motor.
5. Connect jumper cord to 110 AC power source.
6. Replace if latch motor fails to operate.
7. Reverse procedure to reconnect.
22
Auto Latch
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