33
OVEN SYSTEMS
Voltage Sensor
For North America models only. Voltage selection
is completed at the time of manufacture; however,
if incoming voltage for the store is different than
the preset voltage, the operator will be required to
select either 208 or 240 after turning on the oven.
The correct voltage will be enlarged on the screen,
identifying which option to select.
Wire Harnesses
The wire harnesses distribute power to the oven’s
electrical components. For oven schematic and
wire harnness drawings, see pages 47-59 for the
Encore, and pages 61-72 for the Encore 2.
Troubleshooting
The power components could potentially be relat-
ed to the cause of any fault (see pages 35-42 for
detailed fault troubleshooting).
The power components might also be related to
any issue diagnosed in the section “Non-Fault
Code Troubleshooting” on pages 43-46.
Filtering System
This section contains information about the
following components:
- Catalytic converter
- Air filter
- Vent catalyst
Catalytic Converter
The catalytic converter, a VOC type catalyst, is
located behind the inside cook cavity wall and is
responsible for cleaning the recirculating airflow.
The catalyst functions by substantially lowering
the combustion temperature of grease entrained in
the air path to approximately the same temperature
of the airflow; thus the grease burns and breaks
down into CO
2
and H
2
O as it passes through the
catalytic converter. The catalyst will operate most
efficiently at temperatures above 475
º
F (246
º
C).
The catalyst material is very sensitive to certain
chemical compounds. Irreversible damage can
occur if the catalyst is exposed to cleaning chemi-
cals containing phosphates, NaOH, silicates, Na
and Potassium Salts. These chemicals are found in
most commercial degreasers and cleaners; therefore,
only TurboChef
®
Oven Cleaner should be used.
CAUTION: Clean the catalytic converter
with TurboChef Oven Cleaner and rinse
thoroughly with distilled water. Let the
catalytic converter air dry before reinstalling.
If TurboChef Oven Cleaner is not available,
use only distilled water.
Air Filter
The filter is located on the back of the oven. It
helps prevent debris from getting into the electrical
compartment through the cooling fans. The filter
requires scheduled maintenance and occasional
replacement, as it must be kept clean and in good
working condition to ensure proper air circulation
to the electrical components of the oven. See page
5, step 5 for details.
Vent Catalyst
In addition to the main catalytic converter, the
oven contains a secondary catalyst in the vent tube
path. This catalyst further assists in the breakdown
of grease and particulate matter before the excess
air enters the atmosphere.
Troubleshooting
The following issues may occur in relation to the
filtering system:
- F9: CC Temp (if the catalyst is clogged with
grease and debris - see page page 42)
- Fire in the cook cavity (if catalytic converter is
clogged and oven is not regularly cleaned).
- Steam present at the top of the oven door or
when the door is opened (if vent catalyst is
clogged or vent cover is installed upside down).
- Electrical component failure (if filter is not
present or is clogged).
- Undesirable flavor transfer.
- Undesirable odors.
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