TurboChef Technologies Tornado - Manual (Page 39)

ISSUE POSSIBLE CAUSE(S) RESOLUTION
F6 EC Temp
†
Blockage of cool air into
the oven.
†
Rear cooling fan exhaust
guard is clogged.
†
Check for paper towels or anything
that may be obstructing cool air into
the oven.
†
Check rear fan to see if it is free of
debris. Clean as required.
Wave Guide
Cover is broken
or damaged.
†
User abuse.
†
Call Customer Service.*
CATALYTIC CONVERTER
The catalytic converter is installed in the return air
duct behind heater assembly. A qualified technician
must perform the removal or installation of the
catalytic converter.
IMPORTANT NOTE: The catalytic converter can
be cleaned with TurboChef Oven Cleaner
and thoroughly rinsed with distilled water. Let the
catalytic converter air dry before re-installing. If
TurboChef Oven Cleaner is not available, DO NOT
SUBSTITUTE – USE DISTILLED WATER ONLY .
Due to the nature of most foods and the physics
governing the operation of the oven, grease buildup
downstream of the cook cavity is inevitable. A
strict cleaning regiment can solve a majority of the
problems; however, recirculation of undiluted grease-
saturated air is the main cause of downstream grease
accumulation and any associated residual flavors.
Airborne grease tends to collect and bake onto the
oven’s surface downstream of the cook cavity. Due
to the high operating temperatures of the oven, this
grease will start to rapidly decompose into deriva-
tive organic compounds.
These decompositional derivatives generally have
positive and negative effects on cooking. Shorter
chain derivatives add favorable flavor characteristics
to the food, while the higher order carbon chains
lend unpleasant flavor characteristics, such as bitter,
tarry tastes. The installation of a catalytic converter
greatly affects the grease handling and any residual
flavors which might build up over time. A properly
operating catalytic converter causes the conversion
of airborne grease into water, carbon dioxide, and
small amounts of nitrogen and oxygen. The catalytic
converter acts as a combustion chamber for airborne
grease. The catalysts present on the filter lower the
ignition temperature of the airborne grease from
approximately 700ºF to 450–550ºF (371ºC to
232–288ºC), allowing combustion to occur. The
operating temperature of the oven directly deter-
mines the percentage of airborne grease conversion.
A single pass of the air stream yields a 20–30%
improvement in air quality.
Problems with the catalytic converter are indicated
by a decrease in the effectiveness of browning (caused
by a reduction in airflow) or by flavor transfer from
one food group to another.
If you experience a problem with the catalytic
converter, contact a TurboChef qualified service
agency, Customer Service at 800.90TURBO/
+1 214-379-6000, or your Authorized Distributor.
*For Customer Service, call 800.90 TURBO/+1 214-379-6000 or your Authorized Distributor.
29 MAINTENANCE AND TROUBLESHOOTING