What causes fault code PKG-SEAL1 (Case Sealer — Tape Application Fault)?

Tape roll empty or depleted — needs replacement. Tape tension incorrect — too tight causes tape to curl, too loose causes wrinkles. Tape cut blade dull — not cutting cleanly, leaving tails or pulling tape off case. Tape head pressure rollers worn — not pressing tape firmly onto case surface. Case height adjustments wrong — tape head not making proper contact with case flaps

How do I fix fault code PKG-SEAL1?

Load a new roll of tape — verify correct width (typically 2 or 3 inch) and adhesive type. Adjust tape tension spring or knob per manufacturer spec — tape should pull smoothly without jerking. Replace tape cut blade — most use a serrated or straight blade that is a consumable part. Inspect and replace pressure rollers if worn or glazed — they should be compliant/soft rubber. Adjust case height guides to match the current case size — top and bottom tape heads must contact flaps. Verify case flaps are folding flat — if flaps spring back up, the folding plow or compression section needs adjustment

Case Sealer — Tape Application Fault

PKG-SEAL1

Case sealer tape head is not applying tape correctly. Tape is missing, short, wrinkled, not adhering, or cutting improperly.

low packaging

packaging case sealer tape blade roller adhesive

Probable Causes (ranked)

Tape roll empty or depleted — needs replacement
Tape tension incorrect — too tight causes tape to curl, too loose causes wrinkles
Tape cut blade dull — not cutting cleanly, leaving tails or pulling tape off case
Tape head pressure rollers worn — not pressing tape firmly onto case surface
Case height adjustments wrong — tape head not making proper contact with case flaps

Fix Steps

1 Load a new roll of tape — verify correct width (typically 2 or 3 inch) and adhesive type
2 Adjust tape tension spring or knob per manufacturer spec — tape should pull smoothly without jerking
3 Replace tape cut blade — most use a serrated or straight blade that is a consumable part
4 Inspect and replace pressure rollers if worn or glazed — they should be compliant/soft rubber
5 Adjust case height guides to match the current case size — top and bottom tape heads must contact flaps
6 Verify case flaps are folding flat — if flaps spring back up, the folding plow or compression section needs adjustment

Field Trick

When tape wrinkles on the case, everyone adjusts the tape head. But 80% of the time the problem is the case — the flaps aren't folding flat because the compression section is set too wide. Tighten the compression rails first so the flaps are fully closed and flat BEFORE the tape head. Then the tape goes on smooth.

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