| 1 | Machine doesnot work;power switch doesnot light up. Phase sequence LED doesnot light up (inthree phase machine only) | 1.NoACsupply. 2.Fuseblown/MCB tripped. 3.Mains cord failure. 4.MCBfailure. 5.Phases are not in sequence. 6.Power switch failure. | 1.Restore ACsupply. 2.Check for anyshort circuit or replace the fuse/reset the MCB. 3.Replace mainscord. 4.Replace theMCB. 5.Inter change anytwo phase lines. 6.Replace it. |
| 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. 6.Defective PSR. | 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. 6.Replace thePSR. |
| 3 | Thelid does not remainclosed even after vacuumpump starts | 1.Lidgasket does not touchthe chamber face uniformly. | a.Press the lid. b.Check the height ofswing arm. Ifthe 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 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 | Sealinghead operate butsealing 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 therelay board. 2.Replace solenoid valve. |
| 7 | Pouchexpands during vacuumtime | 1.Low gapbetween sealing headandpad holder assembly. | 1.Increase the gapbyadjusting the padholder assembly. |
| 8 | 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. |
| 9 | 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. |
| 10 | Setting is not possible. The Microcontroller does not responding to pushbutton pressing. | 1.Defective switches. 2.Defective FRCCable of Display PCB | 1.Replace display board. 2.Replace cable andconnector. |
| 11 | Systemhangsduring operation | 1.Temporary bugin program due tonoise. 2.Defective micro controller board. | 1.Switch offandrestart the machine. 2.Replace Microcontroller board. |
| 12 | 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. |
| 13 | 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. |
| 14 | Liddoesn’t open after completing the operation. | 1.Defective relay in the relay board. 2.Solenoid coil burned out. | 1.Replace it. 2.Replace thecoil. |
| 15 | Display shows fresh air always | 1.Misalignment ofmicro switch. 2.Defective micro switch. | 1.Correct the position. 2.Replace theswitch. |
| 16 | Fuseblown outwhen machine is switched on | 1.Short circuitof anypart with machine body. | 1.Check andcorrect it. |
| 17 | 24VTransformer Fuse blownout. | 1.Solenoid coil burned out. | 1.Replace it. |
