Oven Relay Board - Electrolux EW30DF65GB Service Manual

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
like 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 first. 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.
EOC Signal Voltage Test Matrix (ES630) - Dual Fuel Ranges
Test for 3.3 VDC (+/- .5 volts) between GND on EOC circuit board and the
indicated connector pin when the specified function is activated.
FREESTANDING ELECTRIC MODELS, and DUAL FUEL MODELS
FUNCTION
Lower oven or Warmer Drawer
L2 Out Relay
Broil Relay
Bake Relay
Convection Element Relay
Lock Motor Relay
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).
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.
GND (-) CIRCUIT ACCESS POINTS
Photo A
ELECTRONIC OVEN CONTROL (ES630)

Oven Relay Board

EOC Test Points Relay Board Test
Connector/Pin#
Connector/Pin #
P9/Pin 7 → to GND J5/Pin 7
P11/Pin 4 → to GND J7/Pin 4
P11/Pin 1 → to J7/Pin 1
GND
P11/ Pin 2 → to GND J7/Pin 2
P11/Pin 5 → to GND J7/Pin 5
P11/Pin 6 → to GND J7/Pin 6
Points
→ to GND
→ to GND
→ to GND
→ to GND
→ to GND
→ to GND
BAKE RELAY SIGNAL VOLTAGE TEST
Page 16
RELAY BOARD CONNECTORS
J7
Photo B
J5