Product Temperature 10° Or More Colder Than Displayed Temperature; 1. "Extremely" Cold Temperatures Displayed; 1° To 7° In Refrigerator -21° To -15° In Freezer; If Outside Us - "Extremely" Warm Temperatures Displayed - Sub-Zero 700-3 BASE Technical & Service Manual

Troubleshooting Guides
PROBLEM
H. Product Temperature 10° or
More Colder than Displayed
Temperature
I. 1. "Extremely" Cold
Temperatures Displayed
• 1° to 7° in Refrigerator
• -21° to -15° in Freezer
2. If outside US -
"Extremely" Warm
Temperatures Displayed
• 34° to 45° in Refrigerator
• -5° to 5° in Freezer
J. "ICE" and "SERVICE"
Flashing
K. No Ice, "ICE" Displayed, but
not Flashing
(NOTE: The Icemaker system
is disabled for 45 minutes after
each harvest.)
(Continued)
#3758424 - Revision B - December, 2005
Integrated
POSSIBLE CAUSE
Compartment Thermistor Misread
1. Control Set to Display Celsius
2. If Outside US - Control Set to Display
Fahrenheit
Water Valve Energized Longer then 15
Seconds
No Water Supply to Unit
Unit Has Not Run Long Enough
Warm Freezer Temperatures
(NOTE: Freezer must be 17°F or colder for
icemaker to function)
Shut-off Arm Stuck in Up/Off Position
Disconnected or Defective Water Valve
Frozen Fill Tube
a. Water Supply Problem
b. Disconnected or defective fill tube
heater
c. No power from control board to fill tube
heater
8-12
3 Series
(700- BASE)
TEST / ACTION
Check resistance of compartment thermistor
for 30,000 to 33,000 ohms at 32°F. Replace
if defective.
1. Change temperature units of measure to
Fahrenheit. Switch unit OFF, then ON, then
press & hold Bell key and UNIT ON/OFF
key for 10 seconds.
2. If Outside US - Change temperature units of
measure to Celsius. Switch unit OFF, then
ON, then press & hold Bell key and UNIT
ON/OFF key for 10 seconds.
• 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
115V AC is applied, closes completely when
115V 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.
Connect/turn on water supply.
Freezer must be 17°F for icemaker to oper-
ate, approximately 24 hours after unit instal-
lation. Instruct customer.
See PROBLEM A, B, D, E, F & G earlier in
Troubleshooting Guide.
Check shut-off arm, if stuck in up/off posi-
tion, correct problem.
Check electrical connections and water con-
nections at water valve, Reconnect / repair
connections.
Check resistance of water valve, 160 ohms.
Replace if defective.
a. Check water supply pressure for "constant"
20-100 PSI. If not, instruct customer.
b. Check electrical connections at fill tube
heater. Reconnect / repair connections.
Check resistance of fill tube heater.
Replace if defective.
c. Initiate manual defrost and check for 115V
AC from control board. Replace board if
defective.