43 300381000
TroubleRemedyProbableCause
COMPRESSOR DOES NOT
OPERATE(CONT’D)I. Hi-pressurecutout tripped
(remoteCooling Unitonly).I. Resetpressureswitch(see
REFRIGERATIONSYSTEM
TEMPERATURE SENSING
DEVICE AND HIGH-PRESSURE
CUTOUTSWITCH in
OPERATORSINSTRUCTIONS
SECTION.
J.Novoltage tocontrolboard.J.Check forloose orbroken wiring.
Check 240/24 VACpower
transformerfor24 VACoutput.
(see NOTEbelow)
K. Inoperativecompressor.K.Replacecompressor.
L.Temperaturesensorisshorted
oropen circuit. L.Check forloose,broken,or
disconnected wire orplug at
pre-coolcoil.Repairor replace
wire.Confirmwhichtemperature
sensorhasfailed byusing the
AuroraSeries
SystemAnalyzer (P/N
309197-000).
M.Loose orbroken wireto
satellite boardfromicesensor
probe on maincontrolboard
(see low-voltage systemwiring
diagram).
M.Repairor replacewire.
NOTE:The 240/24 VAC powertransformerhas an overloadresetbutton locatedonits24VAC output
side(see Figure 3).An overloadonthetransformerwill cause itsresetbutton to pop outdisrupting
the24VACoutput tothemaincontrolboard.Overloadresetbutton mustbepressedintorestore 24
VAC output.
COMPRESSOROPERATES
CONTINUOUSLY BUTDOES
NOT FORMSUFFICIENTICE
BANK.
A.Cooling capacityisexceeded
byoverdrawing.A.Reduce amountofdrinks drawn
pergiven time.
B.StandardCooling Unitwith
condensercoil and fan
assembly--Cooling Unit
located in excessivelyhotarea
oraircirculation through
condensercoil isrestricted.
B.Relocate unitorcheck and if
necessary,clean airfilteras
instructed.
C.RemoteRooftop Condenser
Coil and FanAssembly--Air
circulation through condenser
coil isrestricted.
C.Check and ifnecessary,clean
condensercoil asinstructed.
D. Insufficientrefrigerantcharge.D.Check refrigeration systemwith
gage setand Aurora
SeriesSystemAnalyzer
(P/N309197000).Find and repair
refrigeration leak, then replenish
refrigerantcharge.