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8 Troubleshooting
8-1 General Troubleshooting
Problem Possible Cause Solution
The control panel is not turned
on.
Turn on the control panel.
The external disconnect
(recommended) in the dedicated
circuit is open (off).
Close the switch (on).
Fuse/circuit breaker in the power
drop is blown/tripped.
Replace/reset.
The control panel doesn’t light up
at all
Control power switch is broken. Replace.
The motor overload has tripped. Reset the overload and check
the motor for the proper amp
draw on tag.
Main fuse in power drop or
optional fused disconnect has
blown.
Replace the fuse.
A pump package doesn’t run,
even though it is on-line and its
indicator is lit.
Motor contact is faulty. Repair or replace as required.
The vacuum receiver is off-line. Use the controller to put the
vacuum receiver on-line.
The convey time for the vacuum
receiver is set to zero.
Use the controller to enter a
longer convey time.
The field-installed station bypass
switch is simulating a Bin Full
condition.
Normal operation. Set the switch
so the vacuum receiver is back in
the loading sequence.
The field-installed station bypass
switch is bad or mis-wired.
Repair, replace, or re-wire.
A vacuum receiver is being by-
passed in the loading cycle.
The vacuum receiver was
assigned to the wrong pump
during setup.
Repeat the setup procedure.
Conveying times are too long
(Time Fill Mode only).
Time the vacuum receiver (s)
during loading, and set the
conveying times to a few
seconds less.
Vacuum receivers are overfilling.
Maximum conveying times are
too long, and the PLC does not
recognize the Vacuum Receiver
Full Proximity Switch(es).
Check proximity sensors for
proper operation and proper
wiring to the PLC. Repair as
needed. Reset the conveying
times to a reasonable value, and
adjust as needed.