CPS TEMP-SEEKER TM360 Manual del usuario - Página 18

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AIR EFFICIENCY FLOW CHART B

Measure ambient air temperature 16-18" in front of the condenser. Measure air temperature

of the AC duct closest to the evaporator using the vent probe. The temperature difference

between ambient and duct air should be approximately 30°F (-1°C) in a properly

performing system.

Less than 30°F (-1°C)

CHECK FOR OUTSIDE HEAT ENTERING CABIN

Blend air door not closing

Heater valve not closing

Fresh air door not closing

CHECK EVAPORATOR CONDITION

Evaporator fins dirty or restricted

Evaporator interior coated with scale

Air bypassing evaporator (missing gaskets)

Inadequate airflow across evaporator (i.e.,

clogged cabin air filter or rodent infestation

can also damage compressor slugging

failure)

CHECK REFRIGERANT AND OIL CHARGE

SERVICE

Was system evacuated?

Was system cleaned?

Was the compressor oil level checked?

Refer to diagnostic chart C

Repair & Retest as Necessary

Greater than 30°F (-1°C)

System performing to specifications

Check temperature balance at condenser

(see Chart A)