Sub-Zero 700-2 Series

Page 116
Troubleshooting Guides
Integrated (
Integrated (
700-
700-
2) Series
2) Series
8-10
#3756780 - Revision D - July, 2005
PROBLEM POSSIBLE CAUSE TEST / ACTION
(Continued)
A.) Warm Freezer Temperature
with “SERVICE” Flashing
(See Pointers on previous page)
Evaporator Heavily Frosted
a. Door or drawer ajar
b. Evaporator fan fault
c. Compartment thermistor misread
d. Defrost heater disconnected or faulty
e. Defrost terminator disconnected or
faulty.
f. Defrost sense line disconnected.
g. No power from control board to defrost
circuit
Power to Compressor Fault
NOTE: For 700TF/I-2V, see Error Code
Troubleshooting Guide
Sealed System Fault
• Sealed System Leak
• Sealed System Restriction
• Inefficient Compressor
a. See Door or Drawer Ajar on previous page.
b. See Evaporator Fan Fault on previous page.
c. See Compartment Thermistor Misread on
previous page.
d. Check electrical connections. Reconnect /
repair bad connections. Check resistance of
heater, 30-38 Ohms, replace if defective.
e. Check electrical connections, Reconnect /
repair bad connections or replace terminator
if defective.
f. Manually initiate defrost by pressing ICE key
for 10 seconds. If defrost lasts exactly 5
minutes, check all connections of gray/white
wire from terminator to J4-4 on control
board. Reconnect / repair bad connections.
g. Manually initiate defrost by pressing ICE key
for 10 seconds. Check for 115V AC at E2 on
control board. Replace control board if
defective.
Check for 115V AC at E7 on control board.
Replace control board if defective.
See Sealed System Troubleshooting Guide