Troubleshooting - Air Techniques MOJAVE LT3 User And Installation Manual

TROUBLESHOOTING

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 .
Message
Message Text
Type
Line Voltage out
of range. Contact
Technician
Room temperature
is too high.
Room temperature
Warning
is too low.
Vacuum level value
is more than 1.0
inHg over setpoint.
Vacuum level value
is less than 0.5
inHg.
Pressure
malfunction.
tact Technician.
Room tempera-
ture above 105°F.
Confirm and unit
will restart when
room has cooled.
Separator below
Error
minimum speed.
Re-enable motor?
Motor VFD error
detected. Contact
Technician.
Air Techniques, Inc.
Possible Cause
a. Voltage dips or spikes on
the AC Mains.
b. Unit installed on a 120
VAC circuit
a. Ventilation in the equipment
room is inadequate
b. Exhaust lines are restricted
a. Insulation of the equipment
room is inadequate
a. Feedback control problem
b. Control board malfunction
a. Air Leak in vacuum lines
b. Restricted exhaust
c. Restricted inlet
sensor a. Defective component(s)
Con-
a. Ventilation in the equipment
room is inadequate
a. A large amount of liquid
has entered the Separator
b. Separator is not powered
c. Hall effect sensor is not
connected
a. Various issues with the VFD
can cause this problem
Possible Solution
a. Make sure that the Pump is on a dedi-
cated circuit.
b. Make sure that the Pump is on a 220
VAC circuit.
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.
a. Check that the ambient temperature in
the equipment room is above 40°F. In-
crease heating to the equipment room
if necessary.
a. Check that the Control board is not in
"Bypass" mode
b. Contact your Technician or Technical
Support
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
a. Contact your Technician or Technical
Support
a. Check that the ambient temperature is
not above 105°F. Increase the ventila-
tion in the equipment room if necessary
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.
a. Check for the VFD error code under
the 'Settings -> Info' screen and
contact Technical Support
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