Error Messages - Snap-On ECO DUAL GAS Manuel D'instructions

INSTRUCTIONS MANUAL

ERROR MESSAGES

SYSTEM LEAKS: Error message displayed when the AC sytem connections are not tight.
Solution: Verify the connections between the service hoses and quick couplers,and make
anpther 5 min vacuum test only on service hoses. If the problem persists, delete the residual oil
in the service hoses making a short 4 oz (100 g) charge in the service hoses and then a
recovery and rwpeat the 5 minutes vacuum test on service hoses.
NOTE: If the vacuum test on service hoses pases, means that tha A/C system has a leak
which must be localized using a leak detector.
PRESENCE OF REFRIGERANT INTO THE A/C SYSTEM: Error message displayed when
starting the vacuum, the charging station checks the presence of a pressure inside the A/C
system.
Solution: Perform a recovery procedure.
LOW VACUUM: Error message displayed before charge if the value of the vacuum > 400
mbar.
Solution: Perform a quick vacuum procedure (at least 20 minutes)
LOW GAS AVAILABILITY: Error message displayed during charge, when you select a
quantity greater than the availability og gas.
Solution: Fill the inner refrigerant tank, refer to the Tank Charge section of the manual.
SYSTEM EMPTY: Error message appears when you select a recovery procedure, but there
isn't pressure in the A/C system.
Solution: Check the connection and closing of the quick couplers. If after all there checks the
machine continues to give the same error, the A/C system is empty.
SET QUANTITY LOWER THEN 4 oz (100 g): Error message displayed during charge when
the amount of the gas entered is less than 4 oz (100 g) (both automatic and manual
procedure).
Solution: Set a quantity of gas greater than or equal to 4 oz (100 g).
CONNECTIONS: Error message displayed when the flow rate of charge is too low.
Solution: Verify the correct opening of the quick couplers. Make sure the amount of gas in the
refrigerant tank is > 3 lbs (1.36 kg), otherwise fill the inner refrigerant tank.
EMPTY EXTERNAL TANK: Error message appears during the process of charge the
refrigerant tank when the pressure drops to zero before the completion of the procedure.
Solution: Check the connections, quick couplers and valves on external tank; if the external
tank is empty, replace it whit a full one. Then run another charge.
HIGH PRESSURE ALARM: Error message appears during the recovery procedure, internal
tank filling, empty hoses, or flushing hoses, when the hydraulic pressure reaches
approximately 363 psi (25 bar). The causes may be:
Ambient temperature where is located in the station is too high.
Solution: To wait for a sufficient time to cool the charging station before resuming the
interrupted procedure.
Number of services perfomed by the station is excessive.
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