11
Service Information
Keypad Options
WARNING
Electrocution can cause death or serious
injury. Burns from hot or cold surfaces can
cause serious injuty. Take precautions when
servicing this unit.
• Disconnectthepowersource.
• Donotstandinstandingwaterwhen
workingaroundelectricalappliances.
• Makesurethesurfacesyoutoucharenot
hotorcold.
• Donottouchabarecircuitboardunless
youarewearingananti-staticwriststrap
thatisgroundedtoanelectricalgroundor
groundedwaterpipe.
• Handlecircuitboardscarefullyandavoid
touchingcomponents.
When touching key combinations in which
you hold one key and press another key three
times, it is important to carefullt follow this
procedure:
1. Holdthedesiredkeyensuringthelightabove
thekeyislit.
2. Presstheotherkeythreetimes,ensuringit
lightsupeachtime.
3. Releasetheheldkeyonlyafterreleasingthe
pressedkeyforthethirdtime.
Except as noted, these functions are available
on all models.
ON/OFF
TheON/OFFmodeallowstheunittobeturned
onandoffviathekeypad.Todothis,holdthekey
forapproximately10secondsuntilthe“F”begins
toash.Releasethekeyandtheunitwillswitch
modes.
Thismodedoesnotdisconnectpowerfromthe
circuitboardsiitisstill“LIVE”.
Viewing Actual Temperature
Inviewingtemperatureinthesemodesanyoffsets
aretakenintoaccount.Thismeansthatifyou
placeathermistorinaknowntemperature,ice
waterforexample,itmaynotread32°Fthatyou
wouldassume.Ifthecontroloffsetwaspresetat
-3°Fwhileyouplacedthethermistorinanice
bath,theactualthermistorreadingwhebviewing
actualtemperaturewouldread35°F.Intheunitthis
wouldcausethecabinettopushitself3°cooler.to
virepurethermistorreadingsyoumustgointothe
ServiceMenuandchoosethecorrectoption.
Toviewthethermistortemperature,holdthe
WARMERkeyforapproximatelyvesecondsuntil
the“F”ashes.Releaseandthedisplaywillshow
thecorrectedrefrigeratortemperature.ForWine
Coolermodels,thedisplaywillcyclethroughall
threezones.Thesetemperaturesareapproximate
andcalibratedforacabinetinnormalambient
temperatureswithsomeproductload.Checkinga
completelyunloadedcabinetmayresultinother
temperatures.
Changing from Fahrenheit to Celsius
Tochangethedisplayedtemperaturefrom°Fto
°C,holdtheLIGHTkeyandpressCOLDERthree
times.Thiswillchangeallvaluesto°C.Whenthe
keycombinationisacceptedthecontrolwillchange
values.
Showroom Mode
Thismodeisdesignedtoshowunitsinadisplay
environment.Wheninthismodetheonlyfunctions
willbethecontrolsandcabinetlights.The
compressor,fans,etc.willnotoperate.Toenterthis
mode,holdtheCOLDERkeyandpresstheLIGHT
buttonthreetimes.Whenentered,thedegree
symbolwillbetoash.Whenthedegreesymbolis
ashingtheunitwillallowtheuseofthecontrolfor
demonstrations.Afternottouchingtheunitforone
minutethedisplaywillbeginto“snake”around.This
ismeanttoalertyoutheunitisinshowroommode.
Theunitcanbeleftinthismodeindenitely.Ifyou
againwanttodemothecontrol,touchanykeyand
thedegreesymbolwillbegintoash.To exit this
mode: thismodeneedstobeexitedbythesame
keycombinationasusedtoenterthemode.
Service Mode
Thismodehas16differentoptionsavailablefor
servicediagnostics.Toenterthemodeholdthe
WARMERkeyandpresstheLIGHTbuttonthree
times.Thedisplaywillshow“0’.Wheninthismode
theWARMERandCOLDERkeyswillactasup
anddownarrowstoselectthedesiredoption.
TheLIGHTkeyistheENTERkeyandwillentera
function.ToexittheServiceMode,scrolltooption
99andpresstheLIGHTkey.Afterveminutes
ofnottouchinganykeysthemodewillalsoexit
automatically.