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Detailed Component

Maintenance

Procedures

Water Level Control

Mechanical Make-up Valve

Assembly

Optional Electric Water Level

Control Package

L.E.D. Status Codes

• L.E.D. on steady:Indicatesnormaloperation.

• Steady one second ﬂashing:Indicatesdirtyprobes,readinginthecapacitance

mode.Theunitwillstilloperatebutwillgivethefollowingstatuscodeof1second

on,1secondoff(steady1secondashing).Thisstatuscodewillcontinueuntilthe

probesarecleanedandthepowerhasbeenreset.Note:Nootherstatuscodeswillbe

displayeduntilthedirtyprobesarecleaned.

• Two ﬂashes and off for 5 seconds:Indicatesmake-upvalveranformorethan1hour.

Theunitwillcontinuetoll,withthefollowingstatuscodeof1secondon,1second

off,1secondonandthenofffor5secondsbeforerepeating.Thisstatuswillcontinue

untilpowerhasbeenreset.Possible causes:leakingtank,obstructedll/defective

valveorreducedowrate.

• Three ﬂashes and off for 5 seconds:Indicatesshortedprobesorhighconductive

water.Theunitwillcontinuetooperatebutwillgivethefollowingstatuscodeof1

secondon,1secondoff,1secondon,1secondoff,1secondonandthenofffor5

secondsbeforerepeating.Thisstatuswillcontinueuntilthewaterisdilutedorthe

shortisremovedfromtheprobesandpowerisreset.

• Four ﬂashes and off for 5 seconds:Indicatesblackprobe(P6)readscovered,but

Whiteprobe(P5)doesnotreadcovered(Whiteshouldalsobecoveredbecauseitis

longerthantheBlack).Thiswillcausethellsolenoidvalvetoshortcycleandlead

toprematurefailureofthellvalve.Theunitwillshortcycleandgivethestatuscode

of1secondon,1secondoff,1secondon,1secondoff,1secondon,1secondoff,

1secondonandthenofffor5secondsbeforerepeating.Theunitwillcontinueshort

cycleuntiltheconditionhasbeencorrected(cleanwhiteprobe)andresetthepower.

• L.E.D. does not come on after power up or resetting power:Indicatesunitinoperative.

BAC 3872C User Manual

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