Viking VCSO210SS Service Manual page 15

E r r r o n i d c i t a o i n D e c s
EE01 Oven thermistor fail-
ure
Short circuit
Open
EE02
AH sensor failure
EE05 High temperature
engine error
EE12 Engine thermistor fail-
ure
EE14 EEPROM failure
Data veri cation error
Food burning while
Reset
microwave cooking
[7] How to check in the event of an error
NOTE:
HOW TO SET THE TEST MODE
(Power ON/door closed state)
[STOP/CLEAR] [STEAM CONVECTION] [MICROWAVE] [OPEN DOOR]
Within 1 sec.
1. How to check water supply performance
1) Check of water level sensor performance
Unplug the water tank, power on the
oven, put oven into test mode 00.
Is the oven in the following conditions?
Test mode: 00 (see [9] TEST MODE page 21,22)
H-side water level sensor: 00 h
L-side water level sensor: 00 h
YES
Fill the tank with water to the water
level 2 and plug tank into oven.
Did water transfer from tank to Water
Level unit?
YES
Is the unit in the following conditions?
Test mode: 00 (see [9] TEST MODE page 21,22)
H-side water level sensor: 80 (h) or more
L-side water level sensor: 80 (h) or more
YES
End
i r t p o i n C
Break/short-circuit
of thermistor
Break/short-circuit
of AH sensor
Engine tempera-
ture is abnormally
high.
Break of thermistor
Written value does
not agree with read
value
AH sensor ladder
resistance level
error
Within 1 sec. Within 1 sec.
NO
Are there disconnection and short circuit in the water level sensor
connectors, connecting between the board and the sensor section?
Measure resistance of a set of the three (3) water level sensors with the
sensor connecting connector pulled out of the board.
Is the measured resistance value of
the set infinite?
Replace the control board or the display board.
NO
Check/replace the connection between the tank and the
NO
Are there disconnection and short circuit in the water level sensor
connectors, connecting between the board and the sensor section?
NO
Do the H-side and L-side water level sensors
indicate 01 or more in the test mode?
YES
Is ion-changed or pure water being used?
YES
Use common tap water.
o n d t i o i n
Software is detecting oven
As soon as heating starts
stuck at too hot while in
Any time during heating
oven mode or oven stuck
at too cold while in proof
(fermentation) mode.
After 16~32 seconds from start
Software and associated
of microwave sensor cooking
A/D circuitry is measuring
modes.
values outside of normal
range for AH sensor.
Engine usage menu Any time during cooking mode
but microwave
Engine usage menu Any time during heating
When I/O check mode I/O check mode
starts
After an elapse of seven (7)
minutes from start of heating
(Set the number (initial number: 04) by [ENCODER DIAL] [START]
[DIRECT SETTING KEY]
NO
NO After confirming that the water level sensor wiring of
the water tank is OK, replace the Water Level unit.
YES
Water Level unit.
Measure resistance of a set of the three (3) water level
NO
sensors with the sensor connecting connector pulled out of
the board. (with the water tank filled with water)
Is the measured resistance value
NO of the set infinite?
NOTE: If there is water touching/ covering the
three water level sensors it is NOT in nite.
You get anywhere from a few M ohms to a
few hundreds of K ohms.
After confirming that the water level sensor wiring of the water tank is OK,
replace the Water Level unit.
15
C h e k c i t m n i g R
Judgment is carried out
when engine heater
has been energized for
30 or more seconds.
YES
Repair connector.
YES
Repair connector.
NO
YES
Replace the control board or
the display board.
VCSO210SS
e m r a s k