Problem / Cause / Correction - Viking VUWC244DRSS Service Manual

11.1 Problem / Cause / Correction

PROBLEM
Unit does not operate
Unable to set desired
compartment set-points.
Display lighting doesn't work.
Door is closed but the light is still on.
Cannot activate Show Room Mode
Interior lights functioning but compres-
sor, condenser fan, compartment fans and
heater/fans are disabled
Sabbath Mode is not engaging
Sabbath Mode is not disabling.
Sabbath Mode is automatically disabled.
Alarm sounds 3 times every 30 seconds.
Alarm sounds 6 times every minute.
Message center displays Power Failure.
E1 error code along with audible alarm (6 /
per min.) - Compressor high/low amps
2010 - Viking Preferred Service
POSSIBLE CAUSE
Unit is unplugged
ON/OFF keypad was not held long
enough on display
SET keypad was not depressed while using the
WARMER and COLDER keypad to find desired
point.
Keypad function not activated.
Light bulb is burned out.
Display lighting is on.
Door magnet is not activating reed switch
ON/OFF keypad was not held during power on
reset. (P-O-R).
Show Room Mode is enabled.
Set keypad was not depressed and held firmly
while pressing the WARMER keypad 4 times
within 7 seconds.
Set keypad was not depressed and held firmly
while pressing the WARMER keypad 4 times
within 7 seconds.
Sabbath Mode automatically disables after 72
hours.
Door magnet is not activating reed switch.
High or low temperature alarm.
This is normal at initial start up - power to unit
was disrupted after factory quality test.
Loss of power to electrical circuit or home.
Compressor wire disconnected.
Faulty compressor.
Faulty Power Board
Faulty overload
Faulty PTC relay
Power surge
60
CORRECTION
Plug in the unit
Press ON/OFF keypad for 5 seconds
Press the SET keypad, audible beep will sound. Press
the WARMER or COLDER keypad to reach the desired
set-point. An audible beep will sound at each keypad
function.
Press the LIGHT keypad, audible beep will sound and a
blue light will appear on keypad. The light with stay lit
when the door is closed.
Replace bulb and keypress light keypad.
Turn off display lighting.
Align or space door magnet closer to reed switch.
Hold ON/OFF keypad firmly while unplugging unit
momentarily before plugging back into recepticle (P-O-
R)
Hold ON/OFF keypad firmly while unplugging unit
momentarily before plugging back into receptacle (P-O-
R)
Depress and hold SET keypad firmly while press-
ing the WARMER keypad 4 times within 7 seconds.
Audible beep will sound at every key stroke
Depress and hold SET keypad firmly while press-
ing the WARMER keypad 4 times within 7 seconds.
Audible beep will sound at every key stroke
Reset Sabbath Mode as mentioned above.
Close door.
Adjust door magnet to close reed switch.
Check compartment diagnostics below.
Press ON/OFF keypad once to reset.
Press ON/OFF keypad once to reset.
Check wiring.
Check winding resistance- replace if necessary
Replace board.
Ohm and replace if necessary
Ohm and replace if necessary.
Reset alarm.
SMR-0005