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Trouble RemedyProbable Cause
COMPRESSOR DOES NOT
OPERATE (CONT’D)
I. Hi-pressure cutout tripped
(remote Cooling Unit only).
I. Reset pressure switch (see
REFRIGERATION SYSTEM
TEMPERATURE SENSING
DEVICE AND HIGH-PRESSURE
CUTOUT SWITCH in
OPERATORS INSTRUCTIONS
SECTION.
J. No voltage to control board. J. Check for loose or broken wiring.
Check 240/24 VAC power
transformer for 24 VAC output.
(see NOTE below)
K. Inoperative compressor. K. Replace compressor.
L. Temperature sensor is shorted
or open circuit.
L. Check for loose, broken, or
disconnected wire or plug at
pre-cool coil. Repair or replace
wire. Confirm which temperature
sensor has failed by using the
Aurora Series
System Analyzer (P/N
309197-000).
M. Loose or broken wire to
satellite board from ice sensor
probe on main control board
(see low-voltage system wiring
diagram).
M. Repair or replace wire.
NOTE: The 240/24 VAC power transformer has an overload reset button located on its 24 VAC output
side (see Figure 3). An overload on the transformer will cause its reset button to pop out disrupting
the 24 VAC output to the main control board. Overload reset button must be pressed in to restore 24
VAC output.
COMPRESSOR OPERATES
CONTINUOUSLY BUT DOES
NOT FORM SUFFICIENT ICE
BANK.
A. Cooling capacity is exceeded
by overdrawing.
A. Reduce amount of drinks drawn
per given time.
B. Standard Cooling Unit with
condenser coil and fan
assembly-- Cooling Unit
located in excessively hot area
or air circulation through
condenser coil is restricted.
B. Relocate unit or check and if
necessary, clean air filter as
instructed.
C. Remote Rooftop Condenser
Coil and Fan Assembly-- Air
circulation through condenser
coil is restricted.
C. Check and if necessary, clean
condenser coil as instructed.
D. Insufficient refrigerant charge. D. Check refrigeration system with
gage set and Aurora
Series System Analyzer
(P/N 309197000). Find and repair
refrigeration leak, then replenish
refrigerant charge.