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PROBLEM
POSSIBLE CAUSE
TEST / ACTION
#7031933 - Revision A - April, 2015
MODEL 424
MODEL 424
(SWS #3227000)
(SWS #3227000)
Troubleshooting Guides
A. “SERVICE” FLASHING
B. WARM TEMPERATURE IN
BOTH WINE STORAGE
COMPARTMENTS
See Error Code Troubleshooting Guide
Control Set Too Warm
Unit in Showroom Mode
Unit Recently Energized
Unit Recently Stocked with Wine
High Room Ambient
Door Ajar
a. Wine Rack Obstruction
b. Door out of Adjustment
c. Door or Cabinet Hinge Problem
Condenser Air Flow / Fan Fault
a. Dirty Condenser
b. Fan Blade Loose or Obstructed
c. Fan Motor Disconnected or
Malfunctioning
Evaporator Fan Circuit Fault
a. Door Switch Disconnected or
Malfunctioning
b. Fan Relay Disconnected or
Malfunctioning
c. No Power from Control Board
No Power from Control Board to
Compressor
Compressor Fault
a. Compressor Electricals Disconnected
or Malfunctioning
b. Compressor Inefficient, or Locked
Sealed System Leak or Restriction
See Error Code Troubleshooting Guide
Check set-points. Adjust set-points COLDER
Adjust set-points colder, listen for compressor
& condenser fan operation. If they do not run,
switch unit OFF, then press and hold upper
COLDER & WARMER keys while pressing
UNIT ON/OFF key.
Allow time for unit to pull down to temperature
Instruct customer
Instruct Customer that unit performs best
between 60°F / 16°C - 90°F / 32°C
a. Adjust wine rack
b. See Door Adjustment procedure in section
2 of this manual.
c. Check hinges. Replace if defective.
a. Check/clean condenser.
b. Tighten blade or move obstruction.
c. Check fan motor operation. Check fan
motor electrical connections back to com-
pressor. Check for power from fan motor
to compressor. Reconnect or repair wires,
or replace motor if defective.
a. Check switch electrical connections.
Check for power to / from switch.
Reconnect or replace switch if defective.
b. Check relay electrical connections. Check
for power to / from relay (pins 1 & 5 and 7
& 8). Reconnect or replace if defective.
c. Check for power at J3 on control board.
(NOTE: Unit must be running and not in
Showroom Mode) If no power, replace
board.
Initiate Manual Valve Activation Mode, check
for power at E2 on the control board. If no
power, replace board.
a. Check integrity of compressor electricals.
Check continuity back to control board.
Check for power at E2 on control board.
Correct wiring problems or replace com-
pressor electricals if defective. If no power
between at E2 , replace control board.
b. Check AMP draw on compressor. If high
by 15% or more, replace compressor.
SEE SEALED SYSTEM DIAGNOSTIC
INFORMATION
