Alliance Laundry Systems NK101 - Manual (Page 22)

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Troubleshooting
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
If the EC:19 does not clear or the FEC display still does
not reflect a card insertion, try substituting the harness
from the FEC to the reader with a known good harness.
Wait about 20 seconds. Check the FEC display to see
if the EC:19 goes away, and that FEC does reflect the
card insertions. If both conditions are satisfied, the old
harness was bad, and the new one should be used to
replace it. Try several cards in the new reader to ensure
correct operation.
If the EC:19 does not clear or the FEC display still does
not reflect a card insertion, try substituting another card
reader. Wait about 20 seconds. Check the FEC display
to see if the EC:19 goes away, and that FEC does
reflect the card insertions. If both conditions are
satisfied, the old reader was bad, and the new one
should be used to replace it. Try several cards in the
new reader to ensure correct operation.
If substituting with a new known good reader and a
new known good harness does not clear the EC:19 and
allow card insertions to be displayed by the FEC, the
Front-End Control will probably need to be replaced.
EC:20 – Error Reading Card
EC:20 errors can occur in cases where neither the
reader and the card which caused the EC:20 are faulty.
This can occur for the following reasons:
• The reader and card contacts are not making a good
connection due to dirty contacts.
• Intermittent poor connections.
• The user not inserting the card properly.
Therefore, it is necessary to try numerous cards
numerous times before deciding whether an individual
card or reader is in need of replacing.
If EC:20’s are consistently received on an individual
card, but not on others, the card which gives the errors
may need to be replaced
If EC:20’s occur often with different cards, the card
reader’s contacts should be cleaned. If, after cleaning,
the problem persists when numerous cards have been
tried numerous times, the reader is not reading cards
properly and should be replaced.
EC:26 – Card Write Error
EC:26 errors can occur in cases where neither the
reader and the card which caused the EC:26 are faulty.
This can occur for the following reasons:
• The reader and card contacts are not making a good
connection due to dirty contacts.
• Intermittent poor connections.
• The user not inserting the card properly.
Therefore, it is necessary to try numerous cards
numerous times before deciding whether an individual
card or reader is in need of replacing.
If an EC:26 error occurs once on a given card, and does
not happen again in later transactions, the card and
reader are probably OK, and neither would need to be
replaced.
If a given card repeatedly gives EC:26’s, the card will
need to be replaced.
If a given reader repeatedly gives EC:26’s with a
variety of cards, the reader will need to be replaced.
Other Errors
The following errors should only occur if a firmware
load has been attempted on the card reader. Under any
other condition, if an EC:2A, EC:2C, EC:2D, EC:2E,
EC:2F or EC:30 appears, the reader should be replaced.