Turbo Chef Technologies Residential Single and Double Wall Oven Overview of Troubleshooting

Overview of Troubleshooting

This section contains information pertinent to troubleshooting issues with the TurboChef® Residential Double Wall or Single Wall ovens.

It is divided into two main sections:

-Error Screens

-Component Testing and Troubleshooting

Within these sections, some procedures are relevant only to specific oven models.

The variables are:

-Double Wall Oven: If the procedure is specific to a double-wall oven, it will be in regards to the lower oven, as the top oven is functionally identical to the single-wall oven.

-Single Wall Oven: No procedure will be specific only to a single wall oven, as it is functionally identical to the top oven of the double-wall.

-Gen 1: The procedure will apply only to ovens with a serial number mask of TDO######. Note that all single-wall ovens are Gen 2.

-Gen 2: The procedure will apply only to ovens with a serial number mask of TDO2D###### or TSO2D######.

-No designation: If there is no designation on a procedure, then it applies to all oven types and configurations.

For more information on part descriptions and functions, see Section 5: Oven Systems. For information on removing parts, see the Appendix.

Error Screens

Below are the descriptions and possible causes of the different error screens:

-Oven Door Open (Gen 1)

-Oven Door Open (Gen 2)

-Cooling Fan Failure (Gen 1)

-Cooling Fan Failure (Gen 2)

-Temperature Control Failure

-Magnetron Failure

-Blower Failure

-Oven Over Temperature

Oven Door Open (Gen 1)

When the door is closed, two cams are rotated by the door’s actuators to close the left and right interlock N.O. switches. These switches are wired in series between P7-5 and P8-5 on the control board to monitor the door’s position. If this circuit is broken during the preheat or cooking cycle, or if the monitor switch, P7-15 and P8-4, fails, this error screen is displayed.

Possible causes:

-The door is open

-The door switch assemblies require adjustment

-Faulty left and/or right lock motor assembly

-The switch is not closing because the left and/ or right lock motor assembly has not been installed correctly

-Faulty wiring

-Faulty control board

-Failed monitor switch

Possible components to be replaced:

-Left lock motor assembly

-Right lock motor assembly

Troubleshooting:

1.Verify whether the door is fully closed.

2.Verify the hinges on the door have been fully inserted (see page 5.2).

3.Test pins P8-4 and P7-15 for continuity through the monitor switch.

4.Check to see if the hinges or actuators are bent.

5.Check to see if one of the door cams are over- rotated, if so, correct or replace it.

6.Adjust the door switches.

Note: Figure 6.1 shows the adjustable version of the door switch assembly. Older versions were not adjustable. If an oven has un-adjustable switch assemblies, contact TurboChef to order the adjustable door switch assemblies.

-Remove the door switch covers, located on the right and left side of the Speedcook oven.

-Mark the original position of the adjustment slide for reference.

6.1

TROUBLESHOOTING