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Page Title:
DIRECT SUPPORT MALFUNCTION/SYSTEM INDEX - continued |
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 TM 9-4120-430-14
0041 00
TROUBLESHOOTING
MALFUNCTION/SYMPTOM
PROCEDURE
3.
Insufficient refrigerant or leaks
4.
Faulty compressor
5.
Excess refrigerant
Compressor Runs But Does Not Cool
1.
Improper power supply
2.
Excessively high temperature in conditioned area
3.
Faulty compressor
4.
Low refrigerant charge
5.
High discharge pressure
6.
Faulty liquid solenoid valve
Compressor Excessively Noisy
1.
Low suction line temperature
2.
Over charge of refrigerant
3.
Improper power supply
Suction Pressure Too Low
1.
Faulty expansion valve
2.
Bad filter-drier
Suction Pressure Too High
1.
Defective solenoid valve
2.
Broken or loose louver cables
3.
Defective actuator cylinder
4.
Faulty expansion valve
Low Heat or No Heat
1.
Loose connections or broken wires
2.
Poor continuity of mode selector switch and/or temperature control
3.
Faulty heating elements
0041 00-2
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