| 1 | Machine doesnot work;power switch doesnot light upat switch onposition. | 1.NoACsupply. 2.Fuseblown/MCB tripped. 3.Mains cord failure. | 1.Restore ACsupply. 2.Check for anyshort circuit or replace the fuse/reset the MCB. 3.Replace mainscord. |
| 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 the micro switch. 3.Replace the contactor. 4.Replace the relay board. 5.Replace orrectify the motor. |
| 3 | Thelid does not remainclosed even after vacuumpump starts | 1.Lidgasket does nottouch the chamber face uniformly. | a.Pressthe lid with boththe handsat thecorner of lid. b.Check the gasket forany damage andreplace if necessary. c.Check the height oflid hinge. If the hingeheight 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 | 1.Increase the vacuumsetting. 2. |
| | the chamber throughthe solenoid valve dueto, a)Defective solenoid valve. b)Defective relay. 3.Low oil level in the vacuum pump. 4.Moister contaminated oil. 5.Vacuum leaks throughlid gasket/bolt holes onthe lid/pipe joints/bushes at cable entry. 6.Wearandtear ofvanes of vacuumpump. 7.Defective transducer Board or twisted cable to transducer board. | 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 location ofleakage andreplace the defective components or rectify the problem by tightening the joints. 6.Overhaul /replace thepump. 7.Replace the defective. |
| 5 | Sealinghead operate butsealing does not takes place | 1.Low sealing time setting. 2.heating element failure. 3.Defective sealing transformer. | 1.Increase sealing time. 2.Replace heating element. 3.Replace defective sealing transformer. |
| 6 | Machine halts after sealing | 1.Defective relay. 2.Defective air inlet solenoid valve. | 1.Replace the relay board. 2.Replace solenoid valve. |
| 7 | Pouchexpands during vacuumtime | 1.Low gapbetween sealing headandpad holder assembly. | 1.Increase the gapby adjusting 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 the Teflonfabric. |
| 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 pinsof LCD. |
| 10 | TheMicrocontroller doesnot responding topushbutton 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 dueto noise. 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 540of heater in Relay 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 the bushor pump. |
