10TA Service Manual
TROUBLESHOOTING
4/23/14
8-2
SYMPTOM:
Machine won't run.
POSSIBLE CAUSE
POSSIBLE REMEDY
Power failure ++ Intermittent power
interruption
Check electrical fused disconnect or circuit
breaker supplying power to the machine. If
power has been off, make sure the compressor
crankcase heater is energized, the crankcase is
warm, and there is no liquid refrigerant in the
crankcase prior to running the machine. Push the
"Start" button which will initiate startup in a
thawing cycle.
Compressor motor overload (CMS-OL) trips.
Note: Used on 4D & 6D compressors without
Coresense. All 3D compressor have
Internal Line Break for overcurrent
protection.
Coresense on 4D & 6D compressors
combines overcurrent & oil pressure
protection. (after March 2011)
Check for a loose connection on all motor
contactor and compressor terminals, which could
have caused excessive amp draw. Check
amperage, power supply, and head pressure.
Excessive temperature may be caused by gas
leakage between suction and discharge port of
the compressor. Check for broken cylinder head
gasket or valve assemblies. Replace broken or
defective parts. Restart the machine and check
motor amps and temperature of compressor body.
Note: Switch on 4D & 6D compressors without
Coresense and 3D compressors (with line break
protection) will reset automatically after the
motor has cooled sufficiently.
Compressor cylinder head temperature switch
trips.
The thermal switch will reset automatically after
the motor has cooled sufficiently. Excessive
temperature may be caused by gas leakage
between suction and discharge port of the
compressor. Check for broken cylinder head
gasket or valve assemblies. Replace broken or
defective parts. Restart the machine and check
motor amps and temperature of compressor body.
3.0 amp circuit breaker (CB) in the control
panel tripped.
Check compressor crankcase heater, coils of
relays, contactors, starters, solenoid valves, and
thawing timer for a ground. Repair or replace
any defective part, and replace fuse. Make sure
there is no liquid refrigerant in the compressor
crankcase prior to re-starting the machine.
High/Low safety pressure switch tripped.
If the
machine stops by low pressure cut-out, the
switch will reset automatically when the pressure
raises to the " cut-in " setting. If it stops by high
pressure cut-out, the switch will have to be
manually reset after the pressure drops below the
" cut-in " setting. Check switch settings and push
the "Start" push button to start the machine in a
thawing cycle. Check the head pressure during
the next freeze cycle. See FIGURE 9-4, Section
9, (High/Low Pressure Switch).
Содержание P18FXT
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Страница 20: ...10TA Service Manual INTRODUCTION 4 14 14 1 10 BLANK ...
Страница 40: ...10TA Service Manual INSTALLING YOUR TUBE ICE MACHINE 4 14 14 3 18 BLANK PAGE ...
Страница 43: ...10TA Service Manual HOW YOUR TUBE ICE MACHINE WORKS 4 14 2014 4 3 FIGURE 4 1 Water Cooled Piping Schematic ...
Страница 44: ...10TA Service Manual HOW YOUR TUBE ICE MACHINE WORKS 4 14 2014 4 4 FIGURE 4 2 Air Cooled Piping Schematic ...
Страница 50: ...10TA Service Manual START UP AND OPERATION 4 14 14 5 6 BLANK ...
Страница 51: ...10TA Service Manual ELECTRICAL CONTROLS 4 14 14 6 1 6 Electrical Controls FIGURE 6 1 Control Panel SS PB1 PB2 ...
Страница 52: ...10TA Service Manual ELECTRICAL CONTROLS 4 14 14 6 2 FIGURE 6 2 Control Panel Components Standard ...
Страница 60: ...10TA Service Manual ELECTRICAL CONTROLS 4 14 14 6 10 BLANK ...
Страница 111: ...10TA Service Manual 10 7 OPTIONS AND ACCESSORIES FIGURE 10 4 Wiring Schematic Mid Size Machine P112 P118 P18XT ...
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