Maintenance; Troubleshooting - Semacon S-120 Operating Manual

Maintenance

1) Turn the power switch to the OFF position and unplug the power cord from the machine.
2) Clean the coin track at regular intervals to ensure the optimum level of performance. Raise
the feed belt by lifting near the front pulley as shown in Figure 3, lifting near the letter "A".
3) Slide the thickness block assembly release lever to the right and lift up on the thickness
block assembly.
4) With full access to the coin track, remove any dirt from the coin track with a stiff brush and
then clean any excess debris with a clean rag and alcohol.
5) Clean the count sensor with a cotton swab dipped in alcohol or windex. The sensor is
located near the large feed belt roller toward the front of the coin counter.
6) The inside of the coin counter should be blown out with a can of compressed air that can be
purchased at an office supply store. Removing excess dust and debris from the inside of the
counter will help maintain your counter in proper working order. Cleaning should be per-
formed on a regular basis.

Troubleshooting

Problem 1: Coins are jamming and are not being smoothly discharged.
Solution: Adjust the diameter knob one click in both directions. The machine can jam
if the diameter is set too large or too small. Also, if the diameter size is set too large, some of
the primary coins may be offsorted instead of counted.
Problem 2: Coins rotate inside the coin counter's hopper but they are not discharged.
Solution: Adjust the thickness knob one click larger. Note that if the thickness setting
is adjusted too high, two coins may overlap and cause excessive jamming.
Problem 3: The counter displays a "SAFTY FAIL" error message on the LED display.
Solution: The right side cover safety switch is indicating the right side cover is not
seated properly or the safety switch has malfunctioned. Remove the right side cover and place
it firmly back onto the counter. If this doesn't solve the problem, the safety switch may be
faulty.
Problem 4: The counter displays a "CSERR" error message on the LED display.
Solution: This is a blocked or dirty count sensor error. Clear the jam (if any) in the
feed path and clean the count sensor, inside and out, using a cotton swab dipped in alcohol or
windex. If this doesn't solve the problem, the count sensor may be faulty.
Should you experience any other problems, please contact an authorized Semacon service
center, your distributor or Semacon for technical support.
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