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Diagnosis: Troubleshooting, Status Messages, Alarm Codes
161
Low suction pressure
NOTE: This unit has a capacity
control system. Suction and
discharge pressures may drop below
expected normal readings when the
unit is on Modulation Cool (control
temperature within 10 C [18 F] of
setpoint or in Power Limit mode).
Shortage of refrigerant
Repair leak and recharge
Low ambient air temperature
No remedy
Iced or dirty evaporator coil
Defrost or clean evaporator coil
Restricted lines
Locate and clear restriction
Plugged filter drier
Replace filter drier
Expansion valve closed too much
Adjust or replace valve
Expansion valve feeler bulb
improperly mounted, poorly insulated
or making poor contact
Correct feeler bulb installation
Evaporator fans off
Check evaporator fan motors and
control circuit and correct fault
Defective controller or main relay
board
Diagnose main relay board and
controller. Replace defective
component
Service gauge out of calibration
Adjust or replace gauge
Condition
Possible Cause
Remedy
Содержание 098916
Страница 2: ...MAGNUM TK 51122 4 MM Rev 6 02 06 Copyright 2004 Thermo King Corp Minneapolis MN USA Printed in USA...
Страница 5: ......
Страница 11: ...Table of Contents 10...
Страница 19: ...Service Guide 18...
Страница 28: ...Specifications 27 Figure 2 Physical Specifications AMA313...
Страница 41: ...Unit Description Features Options 40...
Страница 105: ...Operating Instructions 104...
Страница 155: ...Servicing The Unit 154...
Страница 187: ...Index 186...
Страница 189: ...Wiring and Schematic Diagrams Index 188...
Страница 190: ...189 Wiring Schematic...
Страница 191: ...190 Wiring Diagram Page 1 of 2...
Страница 192: ...191 Wiring Diagram Page 2 of 2...