Turbo Chef Technologies Residential Single and Double Wall Oven Halogen Light System

-If 120 VAC is present, the transformer is faulty and the relay board needs to be replaced.

-If no voltage is present, investigate the 15 amp fuse (F2) on the relay board.

Halogen Light System

This section contains information on the following topics:

-Light switch, control panel

-Light switch, Speedcook oven

-One Speedcook oven light is out

-Both Speedcook oven lights are out

-Both Speedcook oven and both lower oven lights are out (double-wall oven)

Light Switch, Control Panel (Manual)

1.Access the control panel light switch through the upper electrical compartment.

2.Disconnect the light switch from the harness. Separate the harness at the connection between the blue/black wires.

3.Apply the probes of the ohmmeter to the two black wires attached to the switch.

4.Check for continuity through the switch by manually engaging the switch.

Light Switch, Speedcook Oven (Door-Actuated)

1.Access the light switch by removing the left lock motor assembly.

2.Disconnect wiring leading to the light switch.

3.Apply the probes of the ohmmeter to the electrical connector still attached to the assembly, pins 2 and 6 (purple wires).

4.Check for continuity through the switch by manually engaging the switch.

One Speedcook Oven Light is Out

CAUTION: DO NOT touch the bulb with bare fingers; rather, use gloves, cloth or tissue to hold the bulb. If the bulb is accidentally touched, clean it with isopropyl alcohol before applying power.

1.Replace the bulb (see page 5.5).

2.If replacing the halogen bulb did not fix the problem, access the rear of the halogen light assembly and disconnect the two green wires at the wire connectors.

3.Apply the probes of the voltmeter to the two green wires leading from the oven. The voltage reading should be 12 VDC.

-If 12 VDC is present, the halogen light assembly is faulty and needs to be replaced.

-If 12 VDC is not present, check all wires and connections in the halogen light system.

Both Speedcook Oven Lights are Out

When the control panel switch is pressed and the oven door is closed, test the control panel switch. When the oven door is opened and the control panel switch is not pressed, test the light switch/left lock motor assembly.

Both Speedcook Oven and Both Lower Oven Lights are Out (Double Wall Oven)

Test the 12 VDC power supply (see page 6.5 for troubleshooting).

Cooling System

This section contains information on the following topics:

-Cooling fan overview (Gen 1)

-Cooling Fan Overview (Gen 2)

-Troubleshooting Cooling Fans (Gen 1)

-Troubleshooting Cooling Fans (Gen 2)

Cooling Fan Overview (Gen 1)

A motion sensor on each of the two cooling fans sends voltage pulses of 5 VDC to the control board. If one of the cooling fans is not spinning, a cooling fan error will be displayed.

Components that activate the cooling fans are:

-CookWheel (Speedcook oven)

-Mode knob (lower oven)

-140°F (60°C) snap switch (Speedcook oven)

-160°F (71°C) snap switch (lower oven)

6.7

TROUBLESHOOTING