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37
573104 REV C
Troubleshooting
Display Cause Solution
INSUFFICIENT
REFRIGERANT
AVAILABLE FOR CHARGE
SELECTED: XX.XXYY
AVAILABLE: XX.XXYY
After a desired weight is
entered, if the charge process
will leave less than 0.67 kg
(1.4 lb) of refrigerant in ISV, the
charge function will not start.
Refer to Tank Fill in the
Maintenance section of this
manual.
INVALID CODE
Activation code entered into
the machine is not correct.
Verify activation code is entered
exactly as received. Capitalization
is required.
INVALID SERIAL NUMBER!
Filter serial number entered
into the machine is not correct.
Verify serial number entered
matches serial number on lter.
Verify lter has not been used on
machine previously.
LEAK TEST FAILED
A leak in the vehicle A/C
system.
Exit current test and perform
repairs on vehicle A/C system.
NO PRESSURE ON INLETS
CHECK CONNECTIONS
RECOVER ANYWAY?
System pressure is below 0.35
bar gauge.
Verify high-side (red) and low-side
(blue) hoses are connected and
coupler valves open. Select
to RECOVER; select to
bypass recover and proceed to
VACUUM.
OIL DRAIN HALTED
Accumulator pressure failed to
rise above 1.10 bar within the
minute before an oil drain was
supposed to occur.
Adequate pressure is required
within the accumulator to force
the oil, which has been separated
from the refrigerant, out of the
system. Select to retry; select
to exit.
OIL LIFE REMAINING
XX:XXX
CHANGE OIL NOW?
Display shows vacuum pump
oil life remaining until machine
locks down.
Refer to Maintenance section
of this manual for instructions to
change vacuum pump oil.
OUT OF RANGE
ACCUMULATOR PRESSURE
Accumulator pressure
transducer is not reading
pressure correctly.
Exit current test and contact a
Robinair authorized service center
for more information.
OUT OF RANGE
ISV PRESSURE
Internal storage vessel
pressure transducer is not
reading pressure correctly.
Exit current test and contact a
Robinair authorized service center
for more information.
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