Sub-Zero ICB700 T Series Troubleshooting Manual page 2

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International Integrated
International Integrated
ERROR CODE TROUBLESHOOTING GUIDE
ERROR CODE
05
A. Check refrigerator compartment thermistor electrical connections and continuity from thermistor to J1
B. Check resistance of refrigerator compartment thermistor for 30,000 to 33,000 ohms at 0°C (32°F).
06
A. Check refrigerator evaporator thermistor electrical connections and continuity from thermistor to J1 on
B. Check resistance of refrigerator evaporator thermistor for 30,000 to 33,000 ohms at 0°C (32°F).
07
A. Check freezer compartment thermistor electrical connections and continuity from thermistor to J1 on
B. Check resistance of freezer compartment thermistor for 30,000 to 33,000 ohms at 0°C (32°F).
08
A. Check freezer evaporator thermistor electrical connections and continuity from thermistor to J1 on
B. Check resistance of freezer evaporator thermistor for 30,000 to 33,000 ohms at 0°C (32°F). Replace
20
A. With a cold evaporator (< -12°C / < 10°F), initiate Manual Defrost. If compressor starts 5 minutes
B. Check for proper ohm readings of defrost heater. Replace heater if defective.
C. Check defrost terminator and its electrical connections, Reconnect / repair bad connections or replace
D. Initiate Manual Defrost, check for 230 V AC at E2 on control board. If no voltage, replace board.
E. Initiate Manual Defrost, check for 230 V AC from E2 (Blue Wire) on control board to defrost termina-
F.
21
A. Check for proper mounting and location of freezer evaporator thermistor and defrost heater. Remount
B. Check for correct wire connection at control board, Blue wire at E2 on control board. If connected to
C. Check for electrical short of Blue wire to another circuit. Repair Blue wire &/or electrical connections.
D. Check for proper operation of defrost terminator: Cut-in -1°C (30°F) / Cut-out 21°C (70°F). Replace if
22
A. Initiate Manual Defrost. If compressor starts 5 minutes after defrost is initiated, check Grey/White wire
23
A. Check for proper mounting and location of freezer evaporator thermistor and defrost heater. Remount
B. Check for correct wire connection at control board, Blue wire at E2 on control board. If connected to
C. Check for electrical short of Blue wire to another circuit. Repair Blue wire &/or electrical connections.
D. Initiate Manual Defrost. If compressor starts 5 minutes after defrost is initiated, check Grey/White wire
24
A. Check for proper ohm readings of defrost heater. Replace heater if defective.
B. Check for proper mounting and location of freezer evaporator thermistor and defrost heater. Remount
NOTE:
After repairs, always clear Error Codes by pressing Bell ON/OFF key for 15 seconds.
on control board. Reconnect / repair connections.
Replace if defective.
control board. Reconnect / repair connections.
Replace if defective.
control board. Reconnect / repair connections.
Replace if defective.
control board. Reconnect / repair connections.
if defective.
after defrost is initiated, check Grey/White wire connections and continuity from defrost heater to J4-4
on control board. Reconnect / repair Grey/White wire &/or electrical connections.
terminator if defective.
tor. Reconnect / repair blue wire &/or electrical connections.
Reference wiring diagram to identify components in same White wire circuit as defrost heater. Check
all White wire electrical connections and continuity from defrost heater to J7-8 on control board.
correctly.
wrong pin, reconnect correctly.
defective.
connections and continuity from defrost heater to J4-4 on control board. Reconnect / repair
Grey/White wire &/or electrical connections.
correctly.
wrong pin, reconnect correctly.
connections and continuity from defrost heater to J4-4 on control board. Reconnect / repair
Grey/White wire &/or electrical connections.
correctly.
Series
Series
(ICB700 T
all)
(ICB700 T
all)
TEST / ACTION
8-3
Troubleshooting Guides
7005836 - Revision A - January, 2009

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