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6-3
1. Disconnect the power supply cord.
2. Open the door and block it open.
3. To discharge the high voltage capacitor,
wait for 60 seconds.
4. If the display fails to clear when the STOP/
CLEAR keypad is depressed, first verify the
flat ribbon cable is making good contact,
and that the secondary (door sensing) in-
terlock switch operates properly. The con-
tacts should be closed when the door is
closed, and open when the door is open.
5. If the door sensing switch is good, discon-
nect the flat ribbon cable that connects the
key unit to the control unit, and make sure
the secondary (door sensing) interlock
switch is closed (either close the door or
short the door sensing switch connecter).
Use the Key Unit matrix, shown below, and
place a jumper wire between the pins that
correspond to the STOP/CLEAR keypad
making momentary contact.
If the control unit responds by clearing with
a beep, the key unit is faulty, and must be
replaced. If the control unit does not re-
spond, it is faulty, and must be replaced. If
a specific pad does not respond, the above
method may be used, after clearing the
control unit to determine if the control unit,
or a keypad is at fault.
6. Reconnect all leads removed from compo-
nents during testing.
7. Reinstall the cabinet.
8. Reconnect the power supply cord.
9. Run the oven and check all the functions.
G11
G12
G 9
G 8
POPCORN
BEVERAGE
SENSOR
REHEAT
CUSTOM
HELP
FRESH
VEGETABLES
POWER
LEVEL
BAKED
POTATOES
FRESH
ROLLS /
MUFFINS
FROZEN
ROLLS /
MUFFINS
SENSOR
COOK
CENTER
KEEP
WARM
PLUS
TIMER
CLOCK
HOT
WATER
DEFROST
CENTER
TASK
LIGHT
ACCENT
LIGHT
3
8
2
7
1
6
5
0
4
9
G 7
G 6
G 5
G 4
G 3
G 2
G 1
G10
STOP
CLEAR
START
MINUTE PLUS
KEY UNIT TEST
Summary of Contents for KOMS155MBL
Page 1: ...TECHNICAL EDUCATION KAC 36 JOB AID 4317340 OVER THE COUNTER MICROWAVE OVEN Model KOMS155MBL ...
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