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Wisco Industries 421 Instruction Manual page 3

Deluxe pizza multi-purpose oven
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OPERATION:
Selecting Baking Temperature
- Turn the control knob clockwise to increase the baking temperature and counterclockwise to decrease the baking
temperature. The temperature can be regulated in 25 F increments. The minimum baking temperature is 150 F and
the maximum is 500 F.
NOTE:
- After the baking temperature is selected, the oven will automatically start if the control knob is not turned within
5 seconds.
- The baking temperature cannot be changed once the oven has started.
- The oven's TEMP light will flash until it has reached the desired pre-heat temperature.
Adding/Subtracting Baking Time
- Time can be added or subtracted while the oven is operating.
- Turn the control knob clockwise to increase the baking time and counterclockwise to decrease.
Turning the Oven OFF
- If the control knob is pushed during the cooking cycle, the oven will shut off.
- The oven's display will flash for the last 15 seconds of the cooking cycle, then the prompting buzzer will beep
five times and shut off. The cooling fan will remain running for several minutes.
Error Codes
If the digital readout should display either of the following error codes, please give us a call.
- The code E1 will appear on the LED readout when there is an open circuit in the temperature sensor
circuit; a replacement temperature sensor may be needed to correct this.
- The code E2 will appear on the LED readout when the temperature sensor circuit is shorted; a
replacement temperature sensor may be needed to correct this.
P .O. Box 10 • Oregon, WI 53575 • Ph: 608.835.3106 • Fx: 608.835.7399 • wiscoind.com • wiscomade.com
Turning the Oven ON
- Push the control knob to turn the oven on. The prompting buzzer make a sound.
Quick One-touch setting with Temperature Memory
- The oven will automatically start at the last used temperature setting for 10 minutes if
the control knob is not turned or pushed within 5 seconds. If the unit has been
unplugged, the default is 450 F. Time is not saved in memory and will always default to
10 minutes.
Selecting Bake Time
- With the baking time flashing, turn the control knob clockwise to increase the baking
time and counterclockwise to decrease the baking time. The maximum baking time is
30 minutes. If a longer time is needed turn the control knob clockwise again before
original set time is done.
- Once the desired baking time is displayed, push the control knob once to display the
baking temperature.

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