User manual

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Vent Fan Does Not Operate in One or Both Speeds
or Does Not Turn Off (Using Vent Fan Button)
Note: This oven is equipped with an Automatic Fan feature. If cabinet or cavity temperature is
high, the vent fan will automatically operate at a low speed. The fan cannot be turned off and
will stop automatically.
Attempt to turn on vent
fan using Vent Fan
button.
Does vent fan turn on
and stay on?
Attempt to turn off
vent fan using
Vent Fan button.
Does vent fan turn
off?
YESNormal operation. YES
Replace main
PCB.
NO
Vent fan operates only
when button is pressed.
Replace main PCB.
Vent fan does not
operate in one or
both speeds.
Mute beeper using
Options.
Listen for a relay
click every time
the vent fan button
is pushed.
Does relay click
every time?
Check vent fan
motor and
capacitor.
YES
Does vent fan
operate in one
speed only?
YES
Perform Control
Panel Test.
Does control panel
pass test?
NO
YES
Replace control
panel.
NO
NO
NO
Check ribbon between main
PCB and sub PCB.
If ribbon is OK, replace sub
PCB. If not fixed, replace main
PCB.