Table of Contents
Advertisement
600 Series
Problem
B.
Warm Freezer Temperatures
w/o "VACUUM CONDENSER"
illuminated.
Pointers:
(NOTE: w/Freezer Comp. Running)
1.
Evap. temp -20°F or lower see:
•
Door ajar
•
Evaporator fan fault
•
Evaporator heavily frosted
•
Faulty light switch
•
Sealed system problem,
leak or partial restriction
2.
Evap. Temp. between -19°F &
0°F see:
•
Control set too high
•
Warm food load
•
High ambient
•
Door ajar
•
Condenser air flow
•
Sealed system problem,
leak
3.
Evap. Temp. 0°F or higher see:
(NOTE: Verify freezer comp is
running & not in defrost)
•
Unit in Show Room mode
•
Power To Compressor fault
•
Sealed system problem,
leak restriction or inefficient
compressor
4.
"EE" displayed in place of tem-
perature reading, see:
•
Thermistor malfunction
(Prior to #1810000)
Possible Cause
No power to unit
Unit switched OFF
Unit in Show Room mode
Control set too high
Warm food load
High room ambient
Door ajar
a.
Food product obstruction
b.
Door out of adjustment
c.
Door or cabinet hinge problem
Condenser air flow
a.
Dirty condenser
b.
Condenser fan blade obstructed.
c.
Condenser fan motor disconnected or
defective
d.
No power from control board (exclud-
ing 601F)
(NOTE: A compressor must be running)
Faulty light switch/Light stays on
Evaporator Fan fault
a.
Fan blade obstructed
b.
Faulty fan switch
c.
Evap. fan motor disconnected or faulty
Troubleshooting Guides
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-point. If high, adjust.
Check contents of freezer for warm food load.
Instruct customer.
Instruct customer.
a.
Move obstruction.
b.
Adjust door.
c.
Replace hinge or component.
a.
Clean condenser.
b.
Remove obstruction.
c.
Check electrical connections,
reconnect/repair. Check power to motor,
replace if defective.
d.
Check COND FAN terminal at control board
for 115V. (w/ a 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.
8-5
Test/Action
#3756270 - Revision B - January, 2006
Advertisement
Table of Contents
Troubleshooting
