Sub-Zero 601F/F, Техническое и сервисное руководство

Страница: 105 / 134

Troubleshooting Guides
600 Series
(Prior to #1810000)
8-7
#3756270 - Revision B - January, 2006
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)
( NOTE: A compressor must be run-
ning)
Faulty light switch/Lights stay on
Evaporator Fan fault
a. Fan blade obstructed
b. Faulty fan switch
c. Evap. fan motor disconnected or faulty
Evaporator heavily frosted
a. Evaporator fan malfunction
b. Evaporator thermistor malfunction
Evaporator thermistor malfunction
Power To Compressor fault
a. Compressor wiring disconnected
b. Compressor electricals disconnected or
faulty
c. No power from control board
• Sealed System leak
• Sealed System restricted
• Inefficient compressor
• Non-operating compressor
(Continued )
C. Warm Refrigerator
Temperatures w/ “VACUUM
CONDENSER” flashing
Pointers:
( NOTE: w/Refrigerator Comp. run-
ning for 5 minutes)
1. Evap. temp 15°F or lower within
5 minutes w/door open, see:
• Door ajar
• Faulty light switch
• Evaporator Fan fault
• Evaporator heavily frosted
• Evaporator thermistor mal
function
• Sealed System problem,
leak or partial restriction
2. Evap. Temp. cannot pull
below 30°F within 5 minutes
w/door open, see:
• Condenser Air Flow
• Evaporator thermistor mal
function
• Sealed System problem,
leak or inefficient compres-
sor
3. Evap. Temp. 35°F or higher
within 5 minutes w/door
open, see:
• Condenser Air Flow
• Power To Compressor fault
• Sealed System problem,
leak, restriction or inefficient
compressor
4. “EE” displayed in place of
temperature reading, see:
• Thermistor Malfunction
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.
Check light switch, lights off when depressed. Replace if
defective.
a. Move obstruction
b. Check power to and from fan switch, replace if
defective.
c. Check wiring to, and power at, fan motor. Repair
wiring or replace motor if defective.
a. See Evaporator Fan Fault above.
b. See Evaporator Thermistor Malfunction below.
Check evaporator thermistor connection and thermistor
Ohms = 32,500 at 32°F and 10,000 = 77°F. Repair con-
nection or replace thermistor if defective.
a. Check wiring at compressor, reconnect or repair.
b. Check compressor electricals, replace if defective.
c. Check R COMP terminal on control board for 115V.
If no power, replace board.
• See following SEALED SYSTEM TROU-
BLESHOOTING GUIDE
.
Problem Possible Cause Test/Action