Display is completely blank; no message and no backlight.

• Check if the green LED on the bottom-right of the display board is flashing. If not, reset power to the oven.
• Measure power to the display: ~10 VAC between J3 BLK and RED on the display board.

Display shows a frozen or scrambled message and/or keypad does not respond.

• Check communication cable between J4 on the controller and J4 on the display (GRN, RED, BLK) for loose pins or damage.
• Check if LED (24) on the controller is flashing. If not, reset power.
• Verify controller power: measure ~10 VAC at J13 BLK and RED on the controller.
• Check if the green LED on the display board is flashing. If not, reset power.
• If problem remains, perform controller reset using black reset button beside keypad (power off, hold 10s, power on).
• On older ovens without reset button: power off, disconnect 3.6 V battery at J8, wait 10s, reconnect and power on.

Rotisserie drive motor does not rotate when expected.

• Check if LED (1) on the controller is lit when the motor should run.
• Check fuse F3 on the controller.
• Verify 120 VAC at outputs: BLK from J7 (controller) to WHT at terminal block.
• Measure power to drive motor: 120 VAC between RED from J7 and WHT at terminal block.

Water solenoid valve does not open to fill the tank.

• Check if LED (2) on the controller is lit when fill should occur.
• Check fuse F3 on the controller.
• Verify 120 VAC at outputs: BLK from J7 to WHT at terminal block.
• Measure power to water valve: 120 VAC between BLU from J7 and WHT at terminal block.

Circulation pump does not run during wash or rinse.

• Check if LED (4) on the controller is lit when circulation pump should run.
• Check fuse F3 on the controller.
• Verify 120 VAC at outputs: BLK from J7 to WHT at terminal block.
• Measure power to circulation pump: 120 VAC between PRP from J7 and WHT at terminal block.

Burner does not ignite and there is no safety lockout alarm.

• Check if green LED (6) on the controller is lit during ignition attempt.
• Verify 24 VAC at J9 ORG and BRN on controller.
• Check wiring at J9: confirm 24 VAC between BLU and BRN on controller.

Drain pump (board may label as drain valve) does not run.

• Check if LED (12) on the controller is lit when drain pump should run.
• Check fuse F2 on the controller.
• Verify 120 VAC at outputs: BLK from J7 to WHT at terminal block.
• Measure power to drain pump: 120 VAC between GRY-A from J7 and WHT at terminal block.

Oven lights do not come on (except 5 seconds after startup or in Sleep mode after Clean).

• Check if LED (13) on the controller is lit when lights should be on.
• Check fuse F2 on the controller.
• Verify 120 VAC at outputs: BLK from J7 to WHT at terminal block.
• Measure power to lights: 120 VAC between ORG from J7 and WHT at terminal block.

Degreaser pump does not run during cleaning.

• Check if LED (14) on the controller is lit when degreaser pump should run.
• Check fuse F2 on the controller.
• Verify 120 VAC at outputs: BLK from J7 to WHT at terminal block.
• Measure power to degreaser pump: 120 VAC between YLW from J7 and WHT at terminal block.

Buzzer does not sound when an alarm is expected.

• Check if LED (16) on the controller is lit when alarm should sound.
• Verify 24 VAC at J9 ORG and BRN on controller.
• Check wiring at J9: confirm 24 VAC between GRY and BRN on controller.

Controller does not correctly detect drain valve closed/open.

• Check if LED (20) on controller is lit when drain valve is closed.
• Remove male J5 connector. On female J5 at controller, jumper pins for GRY and YLW wires — LED (20) should light when jumpered.

Controller does not correctly see door closed/open.

• Check if LED (21) on controller is lit when door is closed.
• Remove male J5 connector. On female J5 at controller, jumper pins for BRN and YLW wires — LED (21) should light when jumpered.

Controller does not correctly detect degreaser level.

• Enter Testing Mode (see Service Testing Mode document).
• Remove male J5 connector. On female J5 at controller, jumper pins for RED and YLW wires.
• Display should show LEVEL GOOD with jumper in place; LEVEL LOW when removed (allow ~2 seconds delay).

Cooling fans do not run when expected.

• Check if LED (13) on controller is lit when cooling fans should run.
• Check fuse F2 on the controller.
• Verify 120 VAC at outputs: BLK from J7 to WHT at terminal block.
• Measure power to fans: 120 VAC between ORG from J7 and WHT at terminal block.

Convection fans do not run during cooking.

• Check if LED (15) on controller is lit when convection fans should run.
• Check fuse F2 on the controller.
• Verify 120 VAC at outputs: BLK from J7 to WHT at terminal block.
• Measure power to convection fans: 120 VAC between GRY-D from J7 and WHT at terminal block.

Use this when a condition refers to a specific LED number (e.g. LED 1, LED 16).

For full LED map and board layout, see the printed controller guide.