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Part # MCOSM06 Rev 1 (11/03/08) Page 13
MASTER 300 Solid State Control
with Mechanical Timer
In O Mode:
When the controller is o, the unit will have no active
prompts. Pressing the ON/OFF key will activate the controller
into Start Up mode.
On Start Up:
In Start Up mode, the controller will heat to the temperature
indicated on the temperature control. The fan speed will
be that which was most recently set. When the oven cavity
reaches the set temperature and is ready for operation the
"LOAD" LED will light.
Controller Keys
Pressing the ON/OFF key will activate the oven.
Pressing the LIGHT key will turn the lights on for 30 seconds.
The lights will work if the controller is in the O mode. When
the door is opened, the light will come on and stay on for 30
seconds.
Pressing the FAN HIGH key will activate the higher speed fan
and light its LED.
Pressing the FAN LOW key will activate the lower speed fan
and light its LED.
Pressing the COOL DOWN key will deactivate the heat, turn
the fan on high and light its LED. The Cool Down will operate
when the door is closed or opened slightly. When the door
opens wider, the Cool Down mode will deactivate and the
LED will ash. This is a patented safety feature. Optimal cool-
down will be achieved with the door open slightly. If the
doors are closed, the LED will ash. Pressing the COOL DOWN
key again will turn the LED o and stop this mode. Pressing
the ON/OFF key will also cancel Cool Down.
When the door is opened the fan and heat will stop until the
door is closed. This is a patented safety feature.
When the ON/OFF key is pressed to turn the oven o and the
oven is above 200°F (93°C), the oven will go into an Auto Cool
Down mode. In Auto Cool Down, the oven will run the fan on
high until the oven cavity drops below 150°F (66°C). During
this time the "AUTO COOL DOWN" LED will light. When the
oven temperature drops below 150°F (66°C) the oven turns
o. This feature protects the oven motor from pre-mature
failure. Optimal cool-down will be achieved with the door
open slightly. Controller Dials.
Cooking TEMPERATURE is set by rotating the TEMPERATURE
dial to the desired temperature, 150°F (66°C) to 550°F (288°C).
Cooking TIME is set by rotating the TIMER dial to the desired
cooking time, up to 60 minutes.