Viking VCSO210SS Service Manual page 19

Check and remedy in the event of malfunction
1. List
Operation Trouble
No display
No key is valid.
No backlight for display
illuminates
Even
The rotary knob does not
with
function.
plugged
in
The oven lamp does not
illuminate.
(Note that the lamp goes out
after five (5) minutes from
opening the door.)
No sound
The START key does not
function.
The fan motor does not run.
The supersteam heater
does not function.
The engine heater does not
When
function.
heating
The convention does not
operation function.
started
The tube pump motor does
not run.
Reset occurs.
Even with the tank filled with
water, "Fill water reservoir" is
Others
indicated and heating does not
start.
2. Check in the event of a 15 A fuse blowing
When the 15 A fuse was blown, observe the following instruction:
There are many high voltage components in the oven, therefore, except for performing operational check, unplug the
power cable before starting work. For the harness, check for poor caulking, poor connection, etc.
Refer to page 14 "BLOWN MONITOR FUSE TEST" and if the fuse still continues to blow, the the inverter may need to be
be replaced.
Has the 15 A fuse blown?
YES: Refer to Check in the event of 15 A fuse blowing.
NO: Check the display unit, fan thermal cut-out and convection thermal cut-out.
Replace the display unit.
Replace the display unit.
Replace the display unit.
Is there a voltage of about 120 V between the oven lamp terminals.
YES: Replace the oven lamp.
NO: Replace the control unit.
Has the harness between the control unit (CN-D) and the display unit (WH-A) been connected?
YES: Replace the control unit or display unit. (Check that sound volume has not been set to mute.)
NO: Connect the harness.
With door closed, check if door switch is open [YES] or closed [NO] (also a [YES] if the oven lamp does not go out).
YES: Adjust the door switch.
NO: Replace the control unit or display unit.
Is there a voltage of 120 V for the AC fan or 24 V for the DC fan?
YES: Replace the fan motor.
NO: Replace the control unit.
Is there a voltage of about 120 V between the terminals of each of the supersteam heater, engine heater and
convection heater?
Raeplace the engine unit assembly (when the supersteam heater does not function).
YES:
Replace the engine unit assembly (when the engine heater does not function.
Replace the convection heater (when the convection heater does not function).
NO: With door closed, check if any switches are measuring as if the door is in open position.
Is there a voltage of about 120 V between the tube pump motor terminals.
YES: Replace the pump unit assembly.(Check the tube pump motor.)
NO: Replace the control unit.
Replace the control unit.
Has the reservoir been inserted all the way?
YES: Replace the WL joint or the control unit.
NO: Replace the tank or the tank spring.
19
Action
Also check that sound volume has not been set to mute.
( [BACK/INFO] --> select Sound ON/OFF, [ENTER] )
YES: Adjust the latch.
NO: The engine thermostat
has been broken.
YES: Replace the engine unit assembly,
engine thermostat and the
engine packing B.
NO: Replace the control unit.
VCSO210SS