Sub-Zero 700TC-3 Service Manual page 109

Integrated
Integrated
PROBLEM
(Continued)
L. Warm Temperatures in Both
Compartments without
"SERVICE" Flashing
M. Product Temperature 10° or
More Colder than Displayed
Temperature
N. 1. "Extremely" Cold
Temperatures Displayed
(1° to 7° in Refrigerator and
-21° to -15° in Freezer)
2. If outside US -
"Extremely" Warm
Temperatures Displayed
(34° to 45° in Refrigerator
and -5° to 5° in Freezer)
O. "ICE" and "SERVICE"
Flashing on LCD
3
3 Series
Series
(700- T ALL)
(700- T ALL)
POSSIBLE CAUSE
Condenser Air Flow
a. Dirty condenser
b. Condenser fan blade obstructed or
loose
c. Condenser fan motor disconnected
d. Condenser fan motor defective
e. Power from control board fault
(700TC/I-3 & 700TR-3 only)
f. Power from compressor controller fault
(700TF/I-3 only)
Compartment Thermistor Misread
1. Control Set to Display Celsius but
Customer Thought it Was Fahrenheit
2. If Outside US - Control Set to Display
Fahrenheit but Customer Thought it
Was Celsius
Water Valve Energized Longer then
Fifteen Seconds
8-15
Troubleshooting Guides
TEST / ACTION
a. Clean condenser.
b. Remove obstruction or tighten nut on motor
shaft.
c. Check continuity from motor to control board
(J7-1) on 700TC/I-3 & 700TR-3, from motor
to compressor controller on 700TF/I-3 .
Reconnect / repair wiring or connections.
d. Check for 115V AC to motor, replace motor
if defective.
e. With compressor running, check for 115V
AC at control board (J7-1 on 700TC/I-3 &
700TR-3). Replace board if defective.
f. With compressor running, check for 115V
AC from controller (700TF/I-3 only).
Replace compressor controller if defective.
Check resistance of compartment thermistor
for 30,000 to 33,000 ohms at 32°F (0°C).
Replace if defective.
1. Switch unit OFF, then ON, then press &
hold Bell key and UNIT ON/OFF key for 10
seconds.
2. Switch unit OFF, then ON, then press & hold
Bell key and UNIT ON/OFF key for 10 sec-
onds.
Check icemaker area for jammed ice cube,
clear jam if present. Check levelness of ice-
maker, 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
115V AC is applied, closes completely when
115V AC is removed. Water valve Ohms =
160. Replace if defective.
#3758412 - Revision B - December, 2006