Packaging Machine Troubleshooting
Practical troubleshooting information for common horizontal packaging machine problems.
Film Tracking Problems
Film drifts sideways through the film path, producing off-center seams and film breaks.
Film WrinklesFilm Wrinkles
Wrinkles at high speed trace to tension balance, film path condition or forming setup.
Film BreakageFilm Breakage
Film breaks follow tracking drift, tension spikes, damaged rollers or film condition.
Film Tension ProblemsFilm Tension Problems
Inconsistent or pulsing film tension affects tracking, registration and seal quality.
Feeding InterruptionFeeding Interruption
The product stream stops or faults intermittently before the wrapping area.
Weak SealsWeak Seals
Seals that tear open easily usually trace back to temperature, pressure, dwell, contamination or film conditions.
Uneven SealsUneven Seals
Seal quality varies across the width — jaw pressure, jaw condition or film condition.
Seal Position ProblemsSeal Position Problems
The seal forms at the wrong point when jaw timing, recipe values or product pitch drift.
Product Caught in the SealProduct Caught in the Seal
Product timing or position lets product reach the sealing area at the wrong moment.
Burned FilmBurned Film
Burned or discolored film at the seal traces to temperature, dwell, jaw condition or stoppage behavior.
Cutting FailureCutting Failure
Packages come out joined or partly cut when the blade, clearance or drive stroke fails.
Incorrect Cutting PositionIncorrect Cutting Position
The cutter lands off-center on the seal or drifts through the run.
Knife DamageKnife Damage
Chipped or worn cutting tools change cut quality and can damage fixtures.
Sensor AlarmsSensor Alarms
Intermittent or constant sensor alarms usually trace to contamination, alignment or cabling.
Servo AlarmsServo Alarms
A structured first response to servo drive and axis alarms before escalating.
HMI ErrorsHMI Errors
HMI error messages and communication faults sit between display and controller.
Registration Mark ProblemsRegistration Mark Problems
Print-to-cut alignment holds at low speed but drifts or faults at production speed.
Product MisalignmentProduct Misalignment
Products arrive rotated, skewed or off-pitch at the forming area.
Unexpected Machine StopsUnexpected Machine Stops
Recurring unplanned stops are a pattern: intermittent safety circuits, sensor misses or jams.
Machine Will Not StartMachine Will Not Start
A safe, ordered check of power, safety circuits and start conditions.
Low Speed or OutputLow Speed or Output
The machine cannot reach its expected output — feeding, film faults, wear or unqualified recipes.
Inconsistent Package LengthInconsistent Package Length
Pack length varies through the run: film slip, encoder issues, tension or registration interaction.
Product Spacing ProblemsProduct Spacing Problems
Uneven product pitch moves products inside the wrap and interferes with sealing and cutting.
Troubleshooting Process
The same five steps apply to every problem on a packaging line.
Identify the symptom
Describe what changes on the machine and on the package — when it started and under what conditions.
Check basic conditions
Supplies, safety circuits, active recipe and film batch — before adjusting anything mechanical.
Inspect the relevant machine system
Work through the system connected to the symptom: film path, sealing, cutting, feeding or control.
Apply the corrective action
Make one change at a time and verify the result on sample packages before continuing.
Contact technical support
If the problem remains, stop and contact Path Pack with the recorded symptoms and alarm codes.
Record every step you take — conditions, changes and results. This record is what allows technical support to diagnose quickly instead of starting from zero.
Principle-level and industry guides live on the main site: path-pack.com/technical-guides →
Still experiencing the problem?
Path Pack technical support can help diagnose the problem and identify the next step.