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185211000 26
Trouble RemedyProbable Cause
TROUBLESHOOTING REFRIGERATION SYSTEM
COMPRESSOR DOES NOT
OPERATE.
A. Ice bank sufficient. A. Refrigeration not called for.
B. Unit power cord unplugged or
Unit power switch (115 VAC
Unit only) in ‘‘OFF’’ (down)
position.
B. Plug in power cord or place power
switch in ‘‘ON’’ (up) position.
COMPRESSOR DOES NOT
OPERATE (CONT’D)
C. No power source (blown fuse
or tripped circuit breaker).
C. Replace fuse or reset circuit
breaker. (Note: Fuse or circuit
breaker are not part of unit).
D. Low voltage at compressor
terminals.
D. Voltage must be at least 103 volts
(115 VAC Unit) or 208 volts (230
VAC Unit) at compressor
terminals when compressor is
trying to start.
E. Loose, disconnected, or
broken wiring.
E. Tighten connections or replace
broken wiring.
F. Overload protector cut out;
over-heated compressor.
Condenser fan motor not
operating as required.
F. Compressor will cool enough to
restart. Do not overdraw cooling
capacity of Unit. Refer to
‘‘CONDENSER FAN MOTOR
NOT OPERATING’’ in this
section.
G. Inoperative overload protector
or start relay.
G. Replace inoperative part.
H. Inoperative ice bank control. H. Replace ice bank control.
I. Inoperative compressor. I. Replace compressor.
COMPRESSOR WILL NOT
STOP AFTER SUFFICIENT
ICE BANK IS FORMED.
(NOTE-ICE BANK SHOULD
JUST COVER CONTROL
BULB).
A. Ice bank control cap tube
kinked or broken.
A. Replace ice bank control.
B. Ice bank control stuck in
closed position.
B. Replace ice bank control.
COMPRESSOR OPERATES
CONTINUOUSLY BUT DOES
NOT FORM SUFFICIENT ICE
BANK.
A. Cooling capacity is exceeded
by over-drawing.
A. Reduce amount of drinks drawn
per given time.
B. Unit located in excessively hot
area or air circulation through
condenser coil is restricted.
B. Relocate Unit or determine and
correct condenser coil restriction.
C. Refrigeration system leak. C. Repair refrigeration system.
NOTE: Ice bank freezes from bottom of evaporator upward. A refrigerant leak or insufficient charge
might show an ice bank at bottom and not at top of evaporator.
CONDENSER FAN MOTOR
NOT OPERATING.
A. Jumper cord loose or
disconnected from motor or
terminal block. Broken wire in
cord.
A. Tighten connections or replace
cord.
B. Fan blade obstructed. B. Remove obstruction.