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SSL and SSIL Series Hopper Loaders – Series One Plus Control
Reference Manual (PN: 882.00149.00) for
Complete Operation and Installation Instructions
(Available online at www.acscustomerservice.com)
Sterling Part No: 882.00349.00
2900 S. 160
th
Street • New Berlin, WI 53151 USA Bulletin No: CV1-335.01
Tel. 262.641.8610 • Fax 262.641.8653
Troubleshooting – Quick Guide
Problem Possible Cause Solution
No power to control box Plug in power cord. Check main disconnect.
Power switch is off Turn ON control box.
External fuse 1FU is blown Replace fuse 1FU.
Internal fuse FU2 is blown Replace fuse FU2.
TB1 is disconnected/loose Reconnect or tighten TB1.
No LED display
Loose wiring in control Check/tighten controller wiring.
Bin full sensor switch is tripped
Wait for machine bin material level to drop, then
restart the hopper loader.
Misaligned bin full sensor switch
magnet
Realign magnet.
Bin full sensor switch wiring is
loose/disconnected
Repair the wiring fault.
Pickup wand not adjusted for material
flow characteristics
Adjust material probe to compensate for material -
see manual for more information.
Sterling is
displayed at
power-up, but
vacuum motor
doesn't start when
the START/STOP
key is pressed.
Filter is dirty/clogged Clean/replace filter as needed.
Vacuum motor unplugged Plug in vacuum motor.
Vacuum time set to zero (0) on Menu
1
Reset Menu 5 to an appropriate time.
Control appears to
work, but vacuum
never starts.
Solid-state relay has failed Replace solid-state relay.
Wand not properly positioned in
material supply
Adjust material wand at material pickup point.
Vacuum time is set too low Set Menu 1 to an appropriate value.
Pickup wand not adjusted for material
flow characteristics
Adjust material probe to compensate for material -
see manual for more info.
Hopper does not
filh completely
Filter is dirty/clogged Clean/replace filter as needed.
Material residue buildup on proximity
sensor
Clean proximity sensor.
Proximity sensor sensitivity is set too
high
Reduce sensitivity of sensor.
Proximity switch
trips before tank is
full
Control wiring connections on circuit
board are loose.
Secure connections on circuit board.
No compressed air Connect to 80psi air supply.
Defective valve or solenoid Repair or replace as needed.
Proportioning
valve doesn't shift
(PP models only)
TB1 is disconnected/loose Tighten TB1 connections.