RealCup RC400 - Error Codes

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24
Error Codes
EngineeringDepartment
ErroscodesforMotherParker'sSingleCupBrewer

TOBEPERFORMEDBYQUALIFIEDSERVICETECHNICIAN
QRcode SOURCEPROBLEM PROBABLECAUSE CORRECTIVEACTION
1 TankHeattimeout Heaterfailure
Measureresistanceacrossheater
leads.Ifopen,replacetankassem‐
bly.
  Harnessopens
Checkconductivitybe tweenheater
leadsandboard.Replaceif
needed.
  Triacboardfailure Replacetriacboard
  Limitswitchopen Replacetankassembly
  Controlboardfailure Replacecontrolboard

2 No/lowwaterflow Pumpfailure
Apply24VACtopumptocheck
operation.Replaceifneeded.
  Harnessopens
Checkconductivitybe tweenpump
leadsandboard.Replaceif
needed.
  Controlboardfailure Replacecontrolboard
3 TankOver‐Temperature Scalebuildupintankassembly
Delimetankor
replacetankif
needed.
  Triacboardfailure Replacetriacboard
  Useofhotwaterinreservoir Checkuserinteraction
 
Hotwaterbypassingintoreservoir
whilebrewing
Checkhighpressurebypasscheck
valve.Pulltubeoffoftopoftank
andblowairtowardsreservoir.If
aircomesout,replace.
Pressureis
11PSInominal.
4 Openthermistor Brewerwillnotoperateatall
Checkthermistorharnessconnec‐
tion.Measurethermistorresis‐
tance30K@75F.Replacetank
assemblyifneeded.
5 Generalfault Various
Checklatestservicematerialson
website
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