Sub-Zero 600 Series Technical & Service Manual page 107

600 Series
Problem
(Continued - see Pointers on previ-
ous page)
D. Warm Refrigerator
Temperature w/o "VACUUM
CONDENSER" illuminated
E. Warm Freezer and
Refrigerator Temperatures w/
"VACUUM CONDENSER"
flashing
(NOTE: To clear error indicator
after repairs, power OFF
then back ON)
F. Warm Freezer and
Refrigerator Temperatures
w/o "VACUUM CONDENSER"
illuminated
(Prior to #1810000)
Possible Cause
• Sealed System leak
• Sealed System restriction
• Inefficient compressor
High room ambient
Condenser Air Flow
a. Dirty condenser
b. Condenser fan blade obstructed
c. Condenser fan motor disconnected or
defective
d. No power from control board (excluding
601R and 601F)
(NOTE: A compressor must be running)
No power to unit
Unit switched OFF
Unit in Show Room mode
Control set too high
Warm food load
High room ambient
Condenser Air Flow
a. Dirty condenser
b. Condenser fan blade obstructed
c. Condenser fan motor disconnected or
defective
d. No power from control board (excluding
601R and 601F)
(NOTE: A compressor must be running)
Troubleshooting Guides
See following SEALED SYSTEM TROUBLESHOOT-
ING GUIDE
Instruct customer.
a. Clean condenser.
b. Remove obstruction.
c. Check electrical connections, reconnect/repair.
Check power to motor, replace motor if defective.
d. Check COND FAN terminal on control board for
115V. (w/comp. running). Replace board if defec-
tive.
(NOTE: If problem persists, see PROBLEM A & C ).
Check power to unit, plug unit in or trip supply circuit
breaker ON.
Check for "OFF" displayed at LCD. If off, press UNIT
ON/OFF key to ON.
If lights are on, listen for unit functioning. If not running,
press UNIT ON/OFF key. Now press and hold
WARMER& COLDER keys, and press UNIT ON/OFF
key.
Check set-points. If high, adjust.
Check contents of freezer for warm food load. Instruct
customer.
Instruct customer.
a. Clean condenser.
b. Remove obstruction.
c. Check electrical connections, reconnect/repair.
Check power to motor, replace motor if defective.
d. Check COND FAN terminal on control board for
115V. (w/comp. running). Replace board if defective.
(NOTE: If problem persists, see PROBLEM B & D).
8-9
Test/Action
#3756270 - Revision B - January, 2006