KitchenAid KAC-28 Oven User Manual


 
6-1
DIAGNOSIS & TROUBLESHOOTING
DIAGNOSTICS
Before servicing, perform the following checks:
The most common cause for control failure is
corrosion on connectors. Therefore, discon-
necting and reconnecting wires will be nec-
essary throughout test procedures.
All tests/checks should be made with a VOM
or DVM having a sensitivity of 20,000 ohms-
per-volt DC, or greater.
Check all connections before replacing com-
ponents, looking for broken or loose wires,
failed terminals, or wires not pressed into
connectors far enough.
Voltage checks must be made with all con-
nectors attached to the boards.
Resistance checks must be made with power
cord unplugged from outlet, and with wiring
harness or connectors disconnected.
Is the oven in the “Sabbath Mode”? If so,
“SAB” will appear in the display. Press and
hold the 6 touchpad for 5 seconds to end the
Sabbath Mode.
To check for the last five Fault codes: Press
and hold the 0 touchpad to access the previ-
ous codes. Numeric touchpads 0 - 4 indicate
faults 1 - 5 respectively, with “0” being the
most recent code.
FAHRENHEIT (°F) TO CELSIUS (°C)
CONVERSION
The default is Fahrenheit (° F).
1. Press the BROIL pad for 5 seconds. The
temperature will be displayed in degrees
Celsius indicated by the “C” in the tempera-
ture display.
2. To return the display to degrees Fahrenheit
press the BROIL pad again for 5 seconds.
“F” will show in the temperature display.
PROGRAMMING THE CAVITY SIZE
When replacing the electronic control, be sure
to program the cavity size within 60 seconds of
power up by pressing the following touchpads:
BAKE (upper half of BAKE touchpad),
CONVECTION BROIL (lower half of BROIL
touchpad.
STOP TIME, CONV FULL MEAL, digit #7,
digit #9, TIMER SET/START, & START.
1. The size is shown in the display “-ID 24”.
2. Press the CLOCK SET/START touchpad
until the correct size is displayed.
3. Press the CANCEL touchpad (do not press
the OVEN START touchpad).
4. To verify programming, press and hold the
1 touchpad for 5 seconds.
ELECTROSTATIC DISCHARGE
(ESD) SENSITIVE ELECTRONICS
ESD problems are present everywhere. ESD
may damage or weaken the electronic control
assembly. The new control assembly may ap-
pear to work well after repair is finished, but
failure may occur at a later date due to ESD
stress.
Use an anti-static wrist strap. Connect wrist
strap to green ground connection point or
unpainted metal in the appliance
-OR-
Touch your finger repeatedly to a green
ground connection point or unpainted metal
in the appliance.
Before removing the part from it’s package,
touch the anti-static bag to a green ground
connection point or unpainted metal in the
appliance.
Avoid touching electronic parts or terminal
contacts; handle electronic control assem-
bly by edges only.
When repackaging failed electronic control
assembly in anti-static bag, observe above
instructions.