"Servicing The World With Automotive Air Conditioning Theory and Diagnosis"
Gauge
Reading and Diagnosis
ALWAYS REMEMBER IF DEALING WITH ORIFICE TUBE SYSTEM
CHECK TO SEE IF BLACK DEATH HAS OR IS OCCURRING
LOW SIDE LOW
HIGH SIDE LOW
CAUSE OF THIS TYPE OF READING
LOW FREON, POSSIBLE LEAKS
WHAT TO DO TO CORRECT
DISCHARGE SYSTEM, LOCATE LEAKS
AND REPAIR
EVACUATE AND RECHARGE
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LOW SIDE L0 W OR IN A VACUUM * LOW SIDE VERY LOW
HIGH SIDE LOW * HIGH SIDE LOW, CAN READ NORMAL/HIGH
CAUSE OF THIS READING * CAUSE OF THIS READING
BAD EXPANSION VALVE OR ORIFICE TUBE * BAD LIQUID LINE OR ACCUMULATOR
WHAT TO DO TO CORRECT * WHAT TO DO TO CORRECT
REPLACE EXPANSION VALVE OR * REPLACE LIQUID LINE & ACCUMULATOR
REPLACE ORIFICE TUBE AND ACCUMULATOR * ADD OIL, EVACUATE AND RECHARGE
REMEMBER ORIFICE TUBE CONDITION * (TIP) LIQUID LINE SWEATING, FROSTED
WILL TELL YOU IF BLACK DEATH IS OCCURRING _______________________________________________
ADD OIL AS NEEDED EVACUATE AND RECHARGE
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