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25Air Techniques, Inc. Air Techniques, Inc.
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Automated Self Diagnostic Feature: Every 2 hours if the pump is OFF it will be turned ON for 6
seconds and then turned OFF. This feature makes sure that the pump remains ready for operation
and may be helpful in preventing locked rotors.
Error Reporting: The Pump monitors the system operation and immediately records and reports
any warnings or errors found. Some errors clear automatically as soon as the operating issues are
resolved; other errors have to be manually reset. The table below lists the types of errors reported
along with their possible causes, and possible resolution.
TROUBLESHOOTING
Message
Type
Message Text Possible Cause Possible Solution
Warning
Line Voltage out
of range. Contact
Technician
a. Voltage dips or spikes on
the AC Mains.
b. Unit installed on a 120
VAC circuit
a. Make sure that the Pump is on a dedi-
cated circuit.
b. Make sure that the Pump is on a 220
VAC circuit.
Room temperature
is too high.
a. Ventilation in the equipment
room is inadequate
b. Exhaust lines are restricted
a. Check that the ambient temperature is
not above 105°F. Increase the ventila-
tion in the equipment room if neces-
sary.
b. Check that the exhaust lines are not
blocked or restricted.
Room temperature
is too low.
a. Insulation of the equipment
room is inadequate
a. Check that the ambient temperature in
the equipment room is above 40°F. In-
crease heating to the equipment room
if necessary.
Vacuum level value
is more than 1.0
inHg over setpoint.
a. Feedback control problem
b. Control board malfunction
a. Check that the Control board is not in
"Bypass" mode
b. Contact your Technician or Technical
Support
Vacuum level value
is less than 0.5
inHg.
a. Air Leak in vacuum lines
b. Restricted exhaust
c. Restricted inlet
a. Check for Air Leak in the vacuum
lines, is the idle frequency high?
b. Check for restricted exhaust lines
c. Check for restricted inlet lines
Error
Pressure sensor
malfunction. Con-
tact Technician.
a. Defective component(s) a. Contact your Technician or Technical
Support
Room tempera-
ture above 105°F.
Confirm and unit
will restart when
room has cooled.
a. Ventilation in the equipment
room is inadequate
a. Check that the ambient temperature is
not above 105°F. Increase the ventila-
tion in the equipment room if necessary
Separator below
minimum speed.
Re-enable motor?
a. A large amount of liquid
has entered the Separator
b. Separator is not powered
c. Hall effect sensor is not
connected
a. A large amount of liquid has entered
the Separator, try turning the Pump
ON again.
b. Check that the Separator fan is spin-
ning when the pump is turned ON.
c. Check that the hall effect sensor cable
is not loose at the back of the unit.
Motor VFD error
detected. Contact
Technician.
a. Various issues with the VFD
can cause this problem
a. Check for the VFD error code under
the 'Settings -> Info' screen and
contact Technical Support
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