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38
Troubleshooting
Display Cause Solution
OUT OF RANGE
ISV TEMPERATURE
Internal storage vessel
temperature sensor is not
reading temperature correctly.
Exit current test and contact a
Robinair authorized service center
for more information.
OUT OF RANGE
LS PRESSURE SENSOR
Low-side pressure transducer
is not reading pressure
correctly.
Exit current test and contact a
Robinair authorized service center
for more information.
POWER BOARD
COMMUNICATION FAILED
Failed communication with
relay board.
Cycle power. If problem
continues, contact a Robinair
authorized service center for more
information.
PRESSURE LEAK TEST
FAILED
CHECK UNIT FOR LEAKS
A leak in vehicle A/C system.
Exit current test and perform
repairs on vehicle A/C system.
REFRIGERANT
PURITY FAILED
Refrigerant tested is not
R-134a or it is contaminated.
Do not recover contaminated
refrigerant into the machine;
use an external refrigerant
recovery machine dedicated to
contaminated refrigerant.
SOURCE TANK IS EMPTY
Refrigerant cannot be
transferred to the ISV because
the source tank is empty.
Exit current test and replace the
source tank.
TANK FULL. REMOVE
REFRIGERANT BEFORE
CONTINUING
ISV is too full to recover
additional refrigerant.
Perform a charge process to
remove refrigerant from ISV
before any further recovery
attempts.
TRIAL PERIOD EXPIRED
UNIT ACTIVATION
REQUIRED TO CONTINUE
USE
Failure to register and activate
the machine within 30 days
of initial startup will cause the
machine to lock out and no
longer function.
Select and refer to Unit
Activation section in this manual
to register the machine.
VACUUM TEST FAILED.
CHECK SYSTEM FOR LEAKS
A leak in vehicle A/C system.
Exit current test and perform
repairs on vehicle A/C system.
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