| 1 | Machine doesnot work;power switch doesnot light upat switch onposition. phase sequence LED doesnot light up (inthree phase machine only) | 1.NoACsupply. 2.HRCFuse blown/MCB tripped. 3.Mains cord failure. 4.Power switch failure. 5.Phases are not in sequence. | 1.Restore ACsupply. 2.Check for anyshort circuit or replace the fuse/reset the MCB. 3.Replace mainscord. 4.Replace power switch. 5.Inter change anytwo phase lines. |
| 2 | Vacuumpumpdoes not work when lid is closed andvacuum levelis always displayed | 1.Micro switchdoes not operate. 2.Defective micro switch. 3.Defective contactor (coil openor contact burned out). 4.Defective relay. 5.Defective motor. | 1.Adjust switch operating lever screw suitably to operate the switchwhen lid is closed. 2.Replace themicro switch. 3.Replace thecontactor. 4.Replace therelay board. 5.Replace orrectify the motor. |
| 3 | Thelid does not remainclosed even | 1.Lidgasket does not touchthe chamber face | a.Press the lid with boththe hands at the corner of lid. |
| after vacuumpump starts | uniformly. | b.Check the gasket forany damage andreplace if necessary. c.Check the height oflid hinge. If the hinge height is optimum, the lid can be closed easily andthe gasket touches the chamber uniformly. |
| 4 | Insufficient Vacuum Reading | 1.Low vacuum setting 2.Solenoid valve leaks: atmospheric air enters into the chamber throughthe solenoid valve dueto, a)Defective solenoid valve. b)Defective relay. 3.Low oil level in the vacuumpump. 4.Moister contaminated oil . 5.Vacuum leaks through lid gasket/bolt holesonthe lid/pipe joints/bushes at cable entry. 6.Wearandtear ofvanes ofvacuumpump. 7.Defective transducer Boardor twisted cable to transducer board. | 1.Increase the vacuumsetting. 2. a)Replace the solenoid valve. b)Replace relay board. 3.Keep the required oil qty in the vacuumpump. 4.Drainthe oil completely and refill. 5.Identify the locationof leakage andreplace the defective components or rectify the problem by tightening the joints. 6.Overhaul /replace the pump. 7.Replace thedefective. |
| 5 | Noflushing operation. Sealing operation starts after vacuumtime. | 1.Flushpressure settings are not proper. | 1.Set flush pressure properly.Set Flush levelas 00-> flush3 - >flush2 ->flush1->760 |
| 6 | Noflushing operation. Machine haltsafter evacuation. Display shows gas flush. | 1.Defective solenoid valve. 2.Verylow pressure in gas cylinder. 3.Gas cylinder valve closed. 4.Defective Relay. | 1.Replace solenoid valve. 2.Replace/refill the gascylinder. 3.Openthe gas cylinder valve. 4.Replace therelay board/Relay. |
| 7 | Machine skips flushingandsealing operation does not takes place. | 1.Flushpressure setting is high. | 1.Set flush pressure properly. Flushing pressure should be lower than thevacuumpressure setting. |
| 8 | Sealinghead operate butsealing does not takes place | 1.Low sealing time setting. 2.heating element failure. 3.Defective sealing transformer. 4.Flushsetting is high. | 1.Increase sealing time. 2.Replace heating element. 3.Replace defective sealing transformer. 4.Use compressor for operating jaw for flushsetting above300. |
| 9 | Machine halts after sealing | 1.Defective relay. 2.Defective air inlet solenoid valve. | 1.Replace therelay board. 2.Replace solenoid valve. |
| 10 | Pouchexpands during vacuumtime | 1.Low gapbetween sealing headandpad holder assembly. | 1.Increase the gapbyadjusting the padholder assembly. |
| 11 | Nonuniform sealing | 1.High gapbetween sealing headandpad holder assembly. 2.Sealing head andpad holder not align properly. 3.Burnt Teflon fabric. | 1.Reduce the gap. 2.Align sealing headandpad holder. 3.Replace theTeflon fabric. |
| 12 | Machines works fine, butblank/garbage display | 1.Defective display. 2.FRCcable ofdisplay or its connector defective. 3.EMI issue | 1.Replace display board. 2.Replace cable andconnector. 3.Give 103disc capacitor between 1st& 2nd , 15th & 16th pinsofLCD. |
| 13 | TheMicrocontroller doesnot responding topushbutton pressing. | 1.Defective switches. 2.Defective FRCCable of Display PCB | 1.Replace display board. 2.Replace cable andconnector. |
| 14 | Systemhangsduring operation | 1.Temporary bugin program due tonoise. 2.Defective micro controller board. | 1.Switch offandrestart the machine. 2.Replace Microcontroller board. |
| 15 | Display doesnot change fromfreshair toready | 1.Misalignment ofreed switch. | 1.Correct the position ofreed switch. |
| 16 | Overheating of Heating element/Transformer | 1.Short circuitwith body of machine. 2.Defective Relay/IRF 540 ofheater inRelay PCB | 1.Make proper wire connections. 2.Replace Relay PCB. |
| 17 | Machine tripswhile pumpstarts working orabnormal soundof pump. | 1.Windingshort with body. 2.Defective centrifugal switch. 3.Defective love jaw coupling bush. | 1.Rewind or replace the pump. 2.Replace the switch or pump. 3.Replace thebush or pump. |
| 18 | Display shows fresh air always | 1.Misalignment of magnetic reed switch. 2.Magnetic reed switch shorted. | 1.Correct the position. 2.Replace theswitch. |
| 19 | Improper sealing | 1.Misalignment ofsealing bed. | 1.Correct the position. |
| 20 | Liddoesn’t open after completing the operation. | 1.Defective relay in the relay board. 2.Defective solenoid valve. | 1.Replace it. 2.Replace it. |
| 21 | Fuseblown outwhen machine is switched on | 1.Short circuitof anypart with machine body. | 1.Check andcorrect it. |
