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Web Techniques WT-25 Series Troubleshooting Guide
SAFETY WARNING: BEFORE PERFORMING ANY REPAIR TO WEB TECHNIQUES EQUIPMENT, YOU MUST TURN OFF
THE POWER AND DISCONNECT THE EQUIPMENT FROM THE POWER SOURCE.
Counter Just Skips Counting
This could be due to a number of factors alone or all of them at once. Remove the counter drive roll by loosening the lock collar and
removing the roll. There are two magnetic proximity switches (Reed Switches) that sense when the magnet in the bottom of the
counter drive roll is near. Check for debris build-up on top of these switches. Also check to make sure that these switches have not
been pushed too far down from the tabletop surface. The top of these switches should reside near the surface of the stainless steel top.
Check to see if there is a locking collar properly install on the top of the counter drive roll. If not, as the web is moving this could cause
the counter drive roll to be riding up and pulling the magnet away from the reed witches. Replace the locking collar and fiber washers.
Intermittent connection between the reed switches and the counter circuit board, check to make sure the connectors are all fastened
correctly and check that the Molex pins in the connectors have not pulled back (caused by pulling on the wires instead of the connector
to disconnect).
Counter circuit board make be failing, IC chip on this board make be at fault or the entire board needs replacing.
Counter Randomly Resets to Zero
First check the programming in the counter by following the counter re-programming instructions in the operator's manual (we can e-
mail these instructions if necessary). Check for intermittent or loose connections on the back of the counter and in the wiring harness
Molex connectors. Check for smashed pins on the counter circuit board caused by over tightening screws at the rear of the counter,
replace counter circuit board.
Check the receptacle where the machine is plugged to make sure that the ground is working properly. Make sure all ground wires on
the machine are connected and making good contact. Static build-up and discharge can cause a counter to react intermittently.
SEE Counter Re-Programming. After checking the programming in the counter, if there is no problem detected, and the above steps
have been followed, and then consider replacing the counter.
Counter Loses Presets
If the counter is randomly losing its presets, this could be a symptom that the counter is ready for replacement or it could be caused by
chronic static build-up and discharge. Re-program the counter, if unsuccessful, replace the counter and take static precautions.
Perform static countermeasures, tinsel, ionization bars or anti-static sprays to alleviate future static build-up.
Machine Counts Backwards
If the proper recommended webpath for this machine is being used, then swap the two connectors connecting wires on the two reed
switches. The wires for the reed switches protrude from holes in the table underneath the counter drive roll. Each reed switch has two
wires that go to a connector. The connector then plugs into another connector on the wiring harness leading to the counter circuit
board. By switching these connectors, you change the direction of the count.
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