DRAFT
TB 9-2320-364-13&P-1
AC DOES NOT COOL OR COOLS INADEQUATELY - Continued
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WARNING
16.
KNOWN INFO
Read WARNING on
Power to AC system OK.
TEST OPTIONS
AC heater/evaporator blower OK.
Pressure test.
AC control circuit OK (except for temperature
AC test set manifold gage.
Does AC test set recovery/
control and low pressure switches).
recycling manifold gages
Low pressure switch OK.
REASON FOR QUESTION
indicate high system high-
No AC condenser dryer desiccant
contaminant in AC refrigerant system.
To isolate system fault.
side pressure?
No AC refrigerant oil contaminant in AC
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refrigerant system.
AC system charge is not low.
No AC system leaks.
Temperature control switch OK.
No air or other contaminant in AC refrigerant
system.
Go to Step 19 of this
NO
fault.
AC compressor OK.
No moisture in AC refrigerant system.
AC condenser core OK.
YES
AC system not overcharged.
POSSIBLE PROBLEMS
Restricted AC hose.
AC expansion valve faulty.
AC condenser dryer faulty.
AC evaporator core faulty.
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0015-24
