Sterling Plumbing 822.00247.00 specifications General Troubleshooting

Chapter 7: Troubleshooting

7-1 General Troubleshooting

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

1 –Pump 9-Station Controller Chapter 7: Troubleshooting 33 of 38