Water Or Clump Of Ice In Ice Bucket; No Lcd; No Lights - Sub-Zero Wolf ICB700 Series Service Manual

Troubleshooting Guides
PROBLEM
P. Water or Clump of Ice in Ice
Bucket
Q. No LCD
R. No Lights
7011902 - Revision A - October, 2009
International Integrated
International Integrated
POSSIBLE CAUSE
Icemaker Not Level
High Fill Adjustment on Icemaker
Water Valve Energized Too Long
Intermittent Warm Freezer Temperatures
Unit in Sabbath Mode
Display Wire Harness Disconnected or
Faulty
Control Panel Assembly Defective (OR)
No Signal Read at Control Board
No power to unit
Unit switched OFF
Unit in Sabbath Mode
Defective or loose light bulb(s)
Light Switch Disconnected or Defective
Lighting System Wiring Disconnected or
Defective
No Power From Control Board
(NOTE: See Unit in Sabbath Mode above.)
8-14
Series
Series
(ICB700 Base)
(ICB700 Base)
TEST / ACTION
Check level of icemaker, level if needed.
Check for 3.5-3.75 oz. fill (100-110 cc.). Turn
adjusting screw clockwise to decrease.
• Check icemaker for jammed ice cube, clear
jam if present.
• Check icemaker levelness; level if needed.
• Check position of fill cup. Reposition if in
ice path.
• Check water supply pressure; must be con-
stant 20-100 PSI. If not, instruct customer.
• Check water valve operation, opens when
230 V AC is applied, closes completely
when 230 V AC is removed. Water valve
Ohms = 160. Replace if defective.
NOTE: Unit must be switched OFF, then ON to
clear flashing ICE & SERVICE, then press
alarm key for 15 seconds to clear error
codes.
See PROBLEM A, B, D, E, F & G earlier in
Troubleshooting Guide.
Exit Sabbath Mode, press UNIT ON/OFF
key.
Check display wire harness and connec-
tions, including wires behind refrigerator
duct cover. Reconnect, repair, replace bad
wiring.
See Membrane Switch/Ribbon Cable Test
Procedures. If membrane switch fails any
test, replace entire control panel assembly.
If switch passes all tests, replace control
board.
Check power to unit, plug unit in or switch
supply circuit breaker ON.
Switch unit ON, press UNIT ON/OFF key.
Exit Sabbath Mode, press UNIT ON/OFF
key.
Install a known good light bulb.
Check wire connections at light switch.
Reconnect/repair. Check for 230 V AC to
and from light switch. Replace switch if
defective.
Check continuity from light sockets to
switch. Reconnect/repair or replace defec-
tive components.
Check for 230 V AC from control board.
Replace board if defective.
(NOTE: See Unit in Sabbath Mode above.)