Samsung WF42H5000AW - Page 28

26 _ Troubleshooting
Error Type
Error Mode
Causes Corrective Actions Description of Photo
LED LCD
Communication Error
-
• Thesignalsbetweenthe
subandmainPBAsare notsensed.
• Incorrectwireconnections
betweenthesubandmain PBAs.
• Checkthewireconnectionsand
terminalcontactsbetweenthesuband mainPBAs.
• Checkfordisconnectedwires. • CheckwhetherthesubPBAisshort-
circuitedbecauseofmoisture.
• IfthemainPBA’scommunication
circuitisfaulty,replaceit.
-
SwitchError (MainRelay
Error)
E2
Sr
• ThePowerbuttonis
continuallypressed.
• Abuttonotherthanthe
Powerbuttoniscontinually pressed.
• MainPCBrelayfault
• CheckwhethereitherthePower
switchoratactswitchiscontinually pressed.
• CheckwhethertheservicePBA
holdingscrewsarefastenedtootight. Iftheyarefastenedtootight,loosen themalittle.
• IfthemainPBAswitchingICon/off
errorhasoccurred,replacethemain PBA.
• The“E2”erroroccursifthemainrelay
connectionsareincorrect.Checkthe connections.Ifthereisnoerrorinthe connections,replacethemainPBA.
GAP
Checkthecontactbetweenthe
controlpanelbuttonsandtheir
correspondingtactswitch. - Theremustbeagap
betweenacontrolpanel buttonanditscorresponding
microswitch.
Otherwise,anerror occursafterapprox.30
secondshaspassed.