| 1 | Machinedoesnot work;powerswitch doesnotlightup. | 1.NoACsupply. 2.Mainscordfailure. 3.MCBfailure. 4.Powerswitchfailure. | 1.RestoreACsupply. 2.Replacemainscord. 3.ReplacetheMCB. 4.Replaceit. |
| 2 | Vacuumpumpdoes notworkwhenlidis closedandvacuum levelisalways displayed | 1.Defectivecontactor 2.DefectiveRelayboard. 3.Defectivemotor. | 1.Replacethecontactor. 2.Replacetherelayboard. 3.Replaceorrectifythemotor. |
| 3 | Theliddoesnot remainclosedeven aftervacuumpump starts | 1.Lidgasketdoesnottouch thechamberfaceuniformly. | a.Pressthelid. b.Checktheheightofswingarm.If theheightisoptimum, thegasket willtouchethechamberuniformly. |
| 4 | InsufficientVacuum Reading | 1.Lowvacuumsetting 2.Solenoidvalveleaks: atmosphericairentersinto thechamberthroughthe solenoidvalvedueto, a)Defectivesolenoidvalve. b)Defectiverelay. 3.Lowoillevelinthe vacuumpump. 4.Moistercontaminatedoil. | 1.Increasethevacuumsetting. 2. a)Replacethesolenoidvalve. b)Replacerelayboard. 3.Keeptherequiredoilqtyinthe vacuumpump. 4.Draintheoilcompletelyand refill. |
| | 5.Vacuumleaksthroughlid gasket/boltholesonthe lid/pipejoints/bushesat cableentry. 6.Wearandtearofvanesof vacuumpump. 7.DefectiveMCPCB. | 5.Identifythelocationofleakage andreplacethedefective componentsorrectifytheproblem bytighteningthejoints. 6.Overhaul/replacethepump. 7.Replacethedefective. |
| 5 | Sealingheadoperate butsealingdoesnot takesplace | 1.Lowsealingtimesetting. 2.heatingelementfailure. 3.Defective sealingtransformers. | 1.Increasesealingtime. 2.Replaceheatingelement. 3.Replacedefectivesealing transformers. |
| 6 | Machinehaltsafter sealing | 1.Defectiverelay. 2.Defectiveairinletsolenoid valve. | 1.Replacetherelayboard. 2.Replacesolenoidvalve. |
| 7 | Pouchexpandsduring vacuumtime | 1.Lowgapbetweensealing headandpadholder assembly. | 1.Increasethegapbyadjustingthe padholderassembly. |
| 8 | Nonuniformsealing | 1.Highgapbetweensealing headandpadholder assembly. 2.Sealingheadandpad holdernotalignproperly. 3.BurntTeflonfabric. | 1.Reducethegap. 2.Alignsealingheadandpad holder. 3.ReplacetheTeflonfabric. |
| 9 | Machinesworksfine, butblank/garbage display | 1.Defectivedisplay. 2.FRCcableofdisplayorits connectordefective. 3.EMIissue | 1.Replacedisplayboard. 2.Replacecableandconnector. 3.Give103disccapacitorbetween 1st&2nd,15th&16thpinsofLCD. |
| 10 | Settingisnotpossible. TheMicrocontroller doesnotrespondingto pushbuttonpressing. | 1.Defectiveswitches. 2.DefectiveFRCCableof DisplayPCB | 1.Replacedisplayboard. 2.Replacecableandconnector. |
| 11 | OverheatingofHeating element/Transformer | 1.Shortcircuitwithbodyof machine. 2.DefectiveRelayPCB | 1.Makeproperwireconnections. 2.ReplaceRelayPCB. |
| 12 | Machinetripswhile pumpstartsworkingor abnormalsoundof pump. | 1.Windingshortwithbody. 2.Defectivecentrifugal switch. 3.Defectivelovejaw couplingbush. | 1.Rewindorreplacethepump. 2.Replacetheswitchorpump. 3.Replacethebushorpump. |
| 13 | Liddoesn’topenafter completingthe operation. | 1.Defectiverelayintherelay board. 2.Solenoidcoilburnedout. | 1.Replaceit. 2.Replacethecoil. |
| 14 | Displayshowsfreshair always | 1.Misalignmentofmicro switch. 2.Defectivemicroswitch. | 1.Correcttheposition. 2.Replacetheswitch. |
| 15 | Fuseblownoutwhen machineisswitchedon | 1.Shortcircuitofanypart withmachinebody. | 1.Checkandcorrectit. |
| 16 | 24VTransformerFuse blownout. | 1.Solenoidcoilburnedout. | 1.Replaceit. |
