Tech Sheet

Test Name Description Steps

TEST #3

Relay Expansion

Control Board

(Left Oven)

Power Supply to REB board and

communication from REB board.

Examples:

1. 14 VDC input

2. F6E9

1. Unplug range or disconnect power.

2. Remove door and toe panel to access main control.

3. Verify that ALL connectors are inserted all the way into the main control.

4. Disconnect J4 connector.

5. Use black probe on J4-2 and red probe on J4-1 in the board, to measure the resistance. If it’s out

of range 5K ±2 KΩ, REB is improperly functioning.

6. Use black probe on J4-2 and red probe on J4-3 in the board, to measure the resistance. If it’s out

of range 2K ±1 KΩ, REB is improperly functioning.

7. Plug in J4 connector.

8. Connect voltmeter between J4-2 (GND) and J4-1 (14 VDC). Plug in range or reconnect power.

If DC voltage is not present, unplug range or disconnect power and run test #1 to check if DC

voltage is provided by ACU from P9.

If DC voltage is present, unplug range or disconnect power and go to step 9.

9. Reassemble all parts and panels. Plug in range or reconnect power.

10. Wait 3 minutes before checking if there is an error.

If there is an error, go to service mode to check if the error code is F6E9 (left oven control lost

communication).

1 J4

VDC

GND

WIN