AC DOES NOT COOL OR COOLS INADEQUATELY - Continued

DRAFT

TB 9-2320-279-13-1

AC DOES NOT COOL OR COOLS INADEQUATELY - Continued

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WARNING

22.

KNOWN INFO

Read WARNING on

Power to AC system OK.

TEST OPTIONS

page 0015-33/

AC heater/evaporator blower OK.

(0015-34 blank).

Verify Repair.

AC control circuits OK (except for

temperature control and low pressure

REASON FOR QUESTION

Does AC system provide

switches).

If AC system provides

adequate cooling?

No moisture in AC refrigerant system.

adequate cooling, fault

No AC condenser dryer desiccant

has been corrected.

contaminant in AC refrigerant system.

No AC refrigerant oil contaminant in AC

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refrigerant system.

No restricted AC hoses.

AC compressor OK.

Fault not corrected,

Temperature control switch OK.

notify Supervisor.

No air or other contaminant in AC refrigerant

system.

AC condenser core OK.

YES

AC expansion valve OK.

AC system not overcharged.

AC condenser dryer OK.

AC evaporator core OK.

AC low pressure switch OK.

AC system charge is not low.

Fault corrected.

No AC system leaks.

POSSIBLE PROBLEMS

None

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0015-32