MARATHONER GOLD & SILVERSTAR GAS CONVECTION OVENS ADJUSTMENTS
OPERATOR’S MANUAL 1181887 REV 1P
AGE 41
ADJUSTMENTS
TEMPERATURE CONTROLLER (Standard-Control Models Only)The calibration of the temperature controller should not be changed until sufficient ex perience with cooking
results has definitely proved that the temperature controller is not maintaining proper oven temperatures.
Before any recalibration is attempted, the oven temperature should be c hecked by the following procedure:
1. Remove all trays and pans from the oven.
2. Place a thermocouple or a reliable mercury oven-type thermometer at the center of the middle rack.
3. Turn the oven ON and set the temperature control knob to 400°F.
4. The amber “heat on” light will go out when the oven temperature is reached.
5. Allow three cycles for the temperature to stabilize.
6. Read the thermocouple or thermometer immediately after the light goes o ut for the third time, and
again immediately after it comes on the next time.
7. If the average of these readings varies by more than 10°F from the dial setting, recalibrate b y the
following procedure. Recalibration should be attempted only by a competent service technician.
Use the following procedure to recalibrate the oven:
1. Loosen the two set screws that secure the temperature-control knob to the tem perature-control shaft.
2. Remove the knob from the shaft, being careful not to rotate the knob or shaft.
3. Replace the knob on the shaft so that the indicator mark on the knob points directly at the temperatur e
that was measured at the center of the oven.
4. Re-check the oven calibration.
FAHRENHEIT OR CELSIUS DISPLAY (Cycle/Cook & Hold Models Only)Ovens with Cycle/Cook & Hold controls can be configured to display temperatures us ing the Fahrenheit or
the Celsius scales. To change the choice, change the position of th e blue jumper “J3” on the rear of the
control panel circuit board.