| 1 | Themachine doesn’tseal | Lowsealingtimeset. | Increasesealingtime |
| | Sealingbladeisdamaged. | Replacethesealingblade. |
| | Sealingalignmentnot proper | Adjustthealignment |
| | Sealingtransformer damage. | Replacethedefect |
| | Defectivecontactor. | Replaceit. |
| 2 | PerfectSealing,but Imperfectshrinking | Shrinktemperature settingislow. | Increasetheshrinkingtemperature. |
| | Temperatureisnot buildingup. | Checktheheaters&replaceitifdefective. |
| | Defectivetemperature sensor. | Replacethetemperaturesensor. |
| | Defectivetemperature controller. | Replacethedefect. |
| 3 | Perfectsealing,but overshrinking | Shrinktemperature settingishigh. | decreasetheshrinkingtemperature. |
| | Temperaturesensor damage. | Replacethetemperaturesensor. |
| | Defectiveheater contactor. | Replaceit. |
| 4 | Blowermotordoes notwork | Blowermotordamage. | Replacethedefect. |
| 5 | Magnetichold downnotworking | Defectiveelectromagnet | Replacethedefective |
| | Defectivetransformer | Replacethedefective |
