Nelson NW511D - Malfunctions Shown on Display (For User)

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NW511
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30
9 MALFUNCTIONS SHOWN ON THE DISPLAY (FOR THE USER)
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Thewarewasherisabletoidentifyanumberofmalfunctionsandshowthemonthedisplay.
Iftheproblempersistsafterthewarewasherhasbeenswitchedoffandbackon,proceedasdescribed
below:
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E.1 Boilertemperatureprobemalfunction
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Switchthewarewasheroffandbackonandperform
anothercycle;iftheproblempersistscalltheafter‐
salesservice.
E.2 Tanktemperatureprobemalfunction
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Switchthewarewasheroffandbackonandperform
anothercycle;iftheproblempersistscalltheafter‐
salesservice.
E.3 Waterintakemalfunction Waterintakenotcompletedinthemaximumtime
allowed
Checkdynamicpressureinintakesystem:thewater
intakefiltermayneedcleaning,thetapmaybe
turnedoffortherinsingnozzlesmaybefouled.
E.4 Boileroverheating. Switchthewarwwasheroffwait15”andbackon
andperformanothercycle;iftheproblempersists
calltheafter‐salesservice.
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E.5 Tankoverheating Switchthewarewasheroffwait15”andbackonand
performanothercycle;iftheproblempersistscall
theafter‐salesservice.
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E.6
Waternotpumpedoutoftank
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Inspectthefiltersfordirtandcheckthatthedrain
hoseisnotblocked,bentorcrushed.
Checkthatthedrainpumpisnotblockedbydirtby
removingtheinsertonthesump(frominsidethe
tank)
Iftheproblempersists:
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withtankempty:tankpressureswitchhasfailed
(continuousfullreading)
‐withtankfull:drainpumpfailure
If the system fails to pump out because the drain
pump is fouled (as a result of incorrect filter
positioning),proceedasfollows:
Bale out the warewasher with a basin and
disconnectit
fromtheelectricalmains.
UnscrewthescrewA,releasethetangBandliftit.
Checkthattheimpellerofthedrainpump
underneaththecoverturnsfreely,andisfreefrom
dirt,limescaleresidues,orpiecesofglass.Neveruse
tools,screwdrivers,scissors,etc.
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