| 1 | Machine does not work; power switch does not light up. Phase sequence LED does not light up (in three phase machine only) | 1.No AC supply. 2.MCB tripped. 3.Mains cord failure. 4.MCB failure. 5.Phases are not in sequence. 6.Power switch failure. | 1.Restore AC supply. 2.Check for any short circuit and reset the MCB. 3.Replace mains cord. 4.Replace the MCB. 5.Inter change any two phase lines. 6.Replace it. |
| 2 | Vacuum pump does not work when lid is closed and vacuum level is always displayed | 1.Micro switch does not operate. 2.Defective micro switch. 3.Defective contactor (coil open or contact burned out). 4.Defective relay. 5.Defective motor. 6.Defective PSR. | 1. Adjust switch operating lever screw suitably to operate the switch when lid is closed. 2.Replace the micro switch. 3.Replace the contactor. 4.Replace the relay board. 5.Replace or rectify the motor. 6.Replace the PSR. |
| 3 | The lid does not remain closed even after vacuum pump starts | 1.Lid gasket does not touch the chamber face uniformly. | a.Press the lid. b.Check the height of swing arm. If the height is optimum, the gasket will touche the chamber uniformly. |
| 4 | Insufficient Vacuum Reading | 1.Low vacuum setting 2.Solenoid valve leaks: atmospheric air enters in to the chamber through the solenoid valve due to, a)Defective solenoid valve. b)Defective relay. 3.Low oil level in the vacuum pump. 4.Moister contaminated oil. 5.Vacuum leaks through lid gasket/bolt holes on the lid/pipe joints/bushes at cable entry. 6.Wear and tear of vanes of vacuum pump. 7.Defective transducer Board or twisted cable to transducer board. | 1.Increase the vacuum setting. 2. a)Replace the solenoid valve. b)Replace relay board. 3.Keep the required oil qty in the vacuum pump. 4.Drain the oil completely and refill. 5.Identify the location of leakage and replace the defective components or rectify the problem by tightening the joints. 6.Overhaul /replace the pump. 7.Replace the defective. |
| 5 | Sealing head operate but sealing does not takes place | 1.Low sealing time setting. 2.heating element failure. 3.Defective sealing transformers. | 1.Increase sealing time. 2.Replace heating element. 3.Replace defective sealing transformers. |
| 6 | Machine halts after sealing | 1.Defective relay. 2.Defective air inlet solenoid valve. | 1.Replace the relay board. 2.Replace solenoid valve. |
| 7 | Pouch expands during vacuum time | 1.Low gap between sealing head and pad holder assembly. | 1.Increase the gap by adjusting the pad holder assembly. |
| 8 | Nonuniform sealing | | |
| 9 | Machines works fine, but blank/garbage display | | |
| 10 | Setting is not possible. The Microcontroller does not responding to push button pressing. | | |
| 11 | System hangs during operation | | |
| 12 | Overheating of Heating element/Transformer | | |
| 13 | Machine trips while pump starts working or abnormal sound of pump. | | |
| 14 | | Lid doesn’t open after | |
| | completing the | |
| | operation. | |
| 15 | Display shows fresh air always | Display shows fresh air | |
| | always | |
| | | |
| 16 | 24V Transformer Fuse blown out. | | |
| 24V Transformer Fuse | | | |
| blown out. | | | |
