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EOC SIGNAL VOLTAGE TEST MATRIX (ES630)
If a component part that is controlled by the EOC fails to operate the cause could be due to a defect
in the EOC, Oven Relay Board, wiring connections , or the non functioning component. Component
parts such as elements, fan motors, lock motors, etc. can be tested with a simple continuity check
using an ohm meter. Verify the continuity of the component and the wiring circuit between the
component to the relay board rst. Also verify continuity of the wiring harness and connectors
between the EOC and Oven Relay Board.
If the component and wiring connections are good test the output signal voltage from the EOC to the
Relay board for the particular relay that turns on that component part. When testing the output signal
set your volt meter to read DC voltage. The output signal will be approximately 3.3 volts DCV.
Using the EOC SIGNAL VOLTAGE TEST MATRIX it is possible to determine if the EOC is properly
signaling the relay board to turn on a particular component. If the proper signal is detected but the
relay does not close then the relay board is defective and must be replaced. If the proper signal is not
detected then the EOC is defective and must be replaced.
GND (-) CIRCUIT ACCESS POINTS
Photo A
When testing the signal voltage from the EOC the negative (-) lead of the test meter must connect
the GND circuit on the EOC circuit board. The easiest access point to the GND circuit is located just
above the left corner of the P11 connector. (Photo A). Either of the GND access points can be used.
Photo B demonstrates testing the Bake Relay signal voltage by measuring the voltage output
between connector J7 pin #2 (red wire) and the GND circuit on the EOC circuit board on a gas range.
Photo B
BAKE RELAY SIGNAL VOLTAGE TEST
FREESTANDING ELECTRIC MODELS, and DUAL FUEL MODELS
FUNCTION EOC Test Points
Connector/Pin#
Relay Board Test Points
Connector/Pin #
P9/Pin 7 → to GND J5/Pin 7 → to GND
L2 Out Relay P11/Pin 4 → to GND J7/Pin 4 → to GND
Broil Relay P11/Pin 1 → to GND J7/Pin 1 → to GND
Bake Relay P11/ Pin 2 → to GND J7/Pin 2 → to GND
Convection Element Relay P11/Pin 5 → to GND J7/Pin 5 → to GND
Lock Motor Relay P11/Pin 6 → to GND J7/Pin 6 → to GND
Test for 3.3 VDC (+/- .5 volts) between GND on EOC circuit board and the
indicated connector pin when the specied function is activated.
RELAY BOARD CONNECTORS
J5
J7
ELECTRONIC OVEN CONTROL (ES630)
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