| 1 | Machinedoesnot work. | 1.NoACsupply 2.MCBtripped 3.Mainscordfailure 4.Powerswitchfailure | 1.RestoreACsupply 2.Checkforanyshortcircuitand resettheMCB. 3.Replacemainscord. 4.ReplaceDisplaypcb. |
| 2 | Vacuumpumpdoes notworkwhenlidis closedanddisplay READYonly | 1.Reedswitchdoesnot operate. 2.Defectivereedswitch. | 1.Adjustthereedswitchclamp suitablytooperatetheswitch whenlidisclosed. 2.Replacethereedswitch. |
| 3 | Vacuumpumpdoes notworkwhenlidis closedanddisplay showingvacuumlevel. | 1.Defectivecontactor (coilopenorcontactburned out). 2.Defectiverelaypcba. 3.Defectivevacuumpump. | 1.Replacethecontactor. 2.Replacetherelayboard. 3.Replaceorrectifythedefective. |
| 4 | Theliddoesnot remainclosedeven aftervacuumpump starts | 1.Lidgasketdoesnottouch thechamberfaceuniformly. | 1.Pressthelidwithboththehands atthecorneroflid. 2.Checkthegasketforanydamage andreplaceifnecessary. |
| 4 | InsufficientVacuum Reading | 1.Lowvacuumsetting 2.Solenoidvalveleaks: atmosphericairentersinto thechamberthroughthe solenoidvalvedueto, a)Defectivesolenoidvalve. b)Defectiverelay. 3.Lowoillevelinthe vacuumpump. 4.Moistercontaminatedoil. 5.Vacuumleaksthroughlid gasket/boltholesonthe lid/pipejoints/bushesat cableentry. 6.Wearandtearofvanesof vacuumpump. 7.Defectivemicrocontroller pcb | 1.Increasethevacuumsetting. 2.a)Replacethesolenoidvalve. b)Replacerelayboard. 3.Keeptherequiredoilqtyinthe vacuumpump. 4.Draintheoilcompletelyand refill. 5.Identifythelocationofleakage andreplacethedefective componentsorrectifytheproblem bytighteningthejoints. 6.Overhaul/replacethepump. 7.Replacethedefective. |
| 5 | Noflushingoperation. Sealingoperation startsaftervacuum time. | 1.Flushpressuresettingsare notproper. | 1.Setflushpressureproperly.Set Flushlevel<Vacuumlevel |
| 6 | Noflushingoperation. Machinehaltsafter evacuation.Display showsgasflush. | 1.Defectivesolenoidvalve. 2.Verylowpressureingas cylinder. 3.Gascylindervalveclosed. 4.DefectiveRelay. | 1.Replacesolenoidvalve. 2.Replace/refillthegascylinder. 3.Openthegascylindervalve. 4.Replacetherelayboard/Relay. |
| 7 | Sealingheadoperate butsealingdoesnot takesplace | 1.Lowsealingtimesetting. 2.heatingelementfailure. 3.Defective sealingtransformer. 4.Flushsettingishigh. | 1.Increasesealingtime. 2.Replaceheatingelement. 3.Replacedefectivesealing transformer. 4.Usecompressorforoperating jawforflushsettingabove300. |
| 8 | Machinehaltsafter sealing | 1.Defectiverelay. 2.Defectiveairinletsolenoid valve. | 1.Replacetherelayboard. 2.Replacesolenoidvalve. |
| 9 | Pouchexpandsduring vacuumtime | 1.Lowgapbetweensealing headandpadholder assembly. | 1.Increasethegapbyadjustingthe padholderassembly. |
| 10 | Nonuniformsealing | 1.Highgapbetweensealing headandpadholder assembly. 2.Sealingheadandpad holdernotalignproperly. 3.BurntTeflonfabric. | 1.Reducethegap. 2.Alignsealingheadandpad holder. 3.ReplacetheTeflonfabric. |
| 11 | Machinesworksfine, butblank/garbage display | 1.Defectivedisplay. 2.FRCcableofdisplayorits connectordefective. | 1.Replacedisplayboard. 2.Replacecableandconnector. |
| 12 | TheMicrocontroller doesnotrespondingto pushbuttonpressing. | 1.Defectiveswitches. 2.DefectiveFRCCableof DisplayPCB | 1.Replacedisplayboard. 2.Replacecableandconnector. |
| 13 | Systemhangsduring operation | 1.Temporarybuginprogram duetonoise. 2.Defectivemicrocontroller board. | 1.Switchoffandrestartthe machine. 2.ReplaceMicrocontrollerboard. |
| 14 | Displaydoesnot changefromfreshair toready | 1.Misalignmentofreed switch. | 1.Correctthepositionofreed switch. |
| 15 | OverheatingofHeating element/Transformer | 1.Shortcircuitwithbodyof machine. 1.DefectiveRelaypcb. | 1.Makeproperwireconnections. 1.ReplaceRelayPCB. |
| 16 | Machinetripswhile pumpstartsworkingor abnormalsoundof pump. | 1.Windingshortwithbody. 2.Defectivecentrifugal switch. 3.Defectivelovejaw couplingbush. | 1.Rewindorreplacethepump. 2.Replacetheswitchorpump. 3.Replacethebushorpump. |
| 17 | Displayshowsfreshair always | 1.Misalignmentofmagnetic reedswitch. 2.Magneticreedswitch shorted. | 1.Correcttheposition. 2.Replacetheswitch. |
| 18 | Impropersealing | 1.Misalignmentofsealing bed. | 1.Correcttheposition. |
| 19 | Liddoesn’topenafter completingthe operation. | 1.Defectiverelayintherelay board. 2.Defectivesolenoidvalve. | 1.Replaceit. 2.Replaceit. |
