P24AL & P34AL Service Manual
TROUBLESHOOTING
12/2016
8-11
Symptom: Machine short cycles (using freeze pressure switch (2PS) only)
Possible Cause
Possible Remedy
Freezer pressure switch (2PS) set too low or
defective
Adjust switch or replace if defective. See
Figure 9-3.
Freeze-up
See “Freeze-up due to extended freezer period”
and “Freeze-up due to ice failing to discharge”.
Clogged water distributors
Clean water distributors.
Lack of water for making ice
Check water tank for sufficient water level.
Check for restrictions in water line, defective
float valve, and open drain valve, excessive ice
chips or low water pressure and correct.
Lack of sufficient liquid refrigerant feed
Check float and float switch, solenoid valve
and coil #20 in liquid line, strainer, and
refrigerant level in receiver.
Water pump rotation incorrect or pump
defective
Check pump motor rotation. Check for leaking
pump seal or defective motor and repair or
replace as needed.
Symptom: High compressor discharge temperature
Possible Cause
Possible Remedy
High head pressure
Check gage accuracy and “High discharge
pressure”.
Defective suction or discharge valves
Feel the compressor heads for hot spots or one
head running hot. Replace worn or leaking
valves.
Restriction in the discharge gas line
Check all hand and check valves to make sure
they are fully opened and not stuck. Repair or
replace as needed.
Internal relief valve leaking
Check the compressor manual to see if your
compressor
is
so
equipped.
Replace
accordingly.
Symptom: Suction line frosting to compressor
Possible Cause
Possible Remedy
Liquid refrigerant overfeed
Check float switch to make sure it is
functioning properly. Replace if defective.
Check solenoid valve #20 to make sure it is not
leaking through. Repair or replace if defective.
Refrigerant contaminated with water
Test refrigerant or oil for water contamination.
Completely pump the freezer out (pumpdown)
and blow excess water out through the oil trap
drain valve #61. Refer to Chapter 9
“Removing Excess Water”.
Summary of Contents for P-24AL
Page 1: ...12 2016 P 24AL P 34AL TUBE ICE MACHINE Service Manual 5000 ...
Page 10: ...P24AL P34AL Service Manual TABLE OF CONTENTS 12 2016 vi ...
Page 15: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 5 Figure 1 2 P24AL Right Side ...
Page 16: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 6 Figure 1 3 P24AL Back Side ...
Page 17: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 7 Figure 1 4 P24AL Left Side ...
Page 18: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 8 Figure 1 5 P34AL Front Side Control Panel ...
Page 19: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 9 Figure 1 6 P34AL Right Side ...
Page 20: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 10 Figure 1 7 P34AL Back Side ...
Page 21: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 11 Figure 1 8 P34AL Left Side ...
Page 22: ...P24AL P34AL Service Manual INTRODUCTION 12 2016 1 12 ...
Page 62: ...P24AL P34AL Service Manual START UP OPERATION 12 2016 5 8 ...
Page 84: ...P24A P34A Service Manual TROUBLESHOOTING 12 2016 8 12 ...
Page 110: ...P24AL P34AL Service Manual SERVICING OPERATIONS 12 2016 9 26 ...
Page 126: ...P24AL P34AL Service Manual TABLES CHARTS 12 16 16 11 8 ...
Page 130: ...P24AL P34AL Service Manual INDEX 12 2016 12 4 ...
Page 131: ...Appendix A ...
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