Warm Temperature In Only One Wine Storage Compartment - Wolf Sub-Zero ICB400 Series Service Manual

TroubleShoot Guide
PROBLEM
C. WARM TEMPERATURE IN
ONLY ONE WINE STORAGE
COMPARTMENT
7011544 - Revision A - November, 2008
International W
International W
POSSIBLE CAUSE
Control Set Too Warm
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
Thermistor Fault
a. Evaporator Thermistor Location
b. Evaporator Thermistor Wiring /
Connections problem
c. Evaporator or Compartment
Thermistor Misread
Condenser Air Flow / Fan Fault
a. Dirty Condenser
b. Fan Blade Loose, or Obstructed
c. Fan Motor Disconnected or
Malfunctioning
Evaporator Fan / Fan Circuit Fault
a. Fan Blade out of Position or
Obstructed
c. Fan Switch Disconnected or
Malfunctioning
b. Fan Motor Disconnected or
Malfunctioning
d. No Power from Control Board
Refrigerant Valve Fault
a. Solenoid Disconnected, Mis-Wired, or
defective
b. Refrigerant Valve Stuck
7-12
ine Storage
ine Storage
(ICB400)
(ICB400)
Check/adjust set-points.
Allow time for unit to pull down
Instruct customer
Instruct Customer that unit performs best
between 16°C (60°F) - 32°C (90°F)
a. Adjust wine rack
b. See Door Adjustment procedure in section
2 of this manual.
c. Check hinges. Replace if defective.
a. Move to correct location.
b. Initiate Diagnostic Mode. If "EE" is dis-
played in place of evap temp, check elec-
trical connections back to J2 on control
board. Repair wiring or connections.
c. Check thermistor ohms = 30,000 - 33,000
at 0°C (32°F). 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 230V AC from fan
motor to compressor. Reconnect or repair
wires, or replace motor if defective.
a. Check fan blade position. Reposition
blade or move obstructions.
b. Check fan switch electrical connections.
Check for 230V AC to and from switch.
Reconnect or replace switch if defective.
c. Check fan motor electrical connections,
and check for 230V AC to motor. Repair
connections, replace motor if defective.
d. Check for 230V AC from J3 on control
board.
not in Showroom Mode) If no power,
replace board.
a. Initiate Manual Valve Activation Mode.
1. If valve inoperative:
a. Check electrical connections.
b. Check solenoid resistance for 680
± 10% ohms. Replace if defective.
2. Toggle through temp readings, if oppo-
site evap temp drops, switch electrical
connections.
b. Initiate Manual Valve Activation Mode for
one side, then the other, while observing
evap temps. If only one side of valve acti-
vates, replace valve.
Series
Series
TEST / ACTION
(NOTE: Unit must be running and