TurboChef Technologies Residential Single and Double Wall Oven - Manual (Page 65)

TROUBLESHOO
TING
6.1
Overview of Troubleshooting
Th is 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 specifi c oven models.
Th e variables are:
- Double Wall Oven: If the procedure is specifi c
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 specifi c
only to a single wall oven, as it is functionally
identical to the top oven of the double-wall.
- Gen 1: Th
e procedure will apply only to ovens
with a serial number mask of TDO######.
Note that all single-wall ovens are Gen 2.
- Gen 2: Th
e 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
confi gurations.
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
diff erent 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. Th
ese 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:
-
Th e door is open
- Th e door switch assemblies require adjustment
- Faulty left and/or right lock motor assembly
-
Th e 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.