Technical data

25
 Troubleshooting4
Fault code
Display
Fault description Comments
• Remedial action
034
*
Blowermotor,outlet(+)shortcircuit
afterU
B
(batteryvoltage)
• Checkthattheleadharnessoftheblowermotorhasbeencorrectlylaid
andcheckfordamage,ifok—>removeleadharnessatcontrolboxand
checkforcontinuity,ifok—>replacecontrolbox.
047
Meteringpump–shortcircuitor
overload
• Removeconnectorfromthemeteringpump,ifthefaultcode048(inter-
ruption)isdisplayedthemeteringpumpisdefective—>replacemetering
pump.
• Ifthefaultcode047continuestobedisplayed,disconnectconnectorS1/
B1attheheater,andattheconnectorB1,PIN5checkthecable1
2
gn/rt
uptothemeteringpumpforshortcircuittonegative(PIN10),
ifok–>replacecontrolbox.
048
Meteringpump–interruption • Disconnectconnectorfrommeteringpumpandmeasuretheresistance
valueofthemeteringpump(seePage12forvalues),ifresistancevalueok,
re-connectthecableloomtothemeteringpump.
• DisconnectconnectorS1/B1attheheaterandmeasuretheresistance
value(seePage12)betweenPIN5andPIN10,ifok—>replacecontrol
box.
049
*
Meteringpumpoutlet(+)Shortcircuit
–afterU
B
(batteryvoltage)
• Checkthattheleadharnessofthemeteringpumphasbeencorrectlylaid
andcheckfordamage,ifok—>removeleadharnessandcheckforconti-
nuity,ifok—>replacecontrolbox.
050
Toomanyfailedstartattempts(opera-
tinglock-out)
Thecontrolboxlocksaftertoomanyfailedstartattempts(max.255startat-
tempts).
• Unlockthecontrolboxbydeletingthefaultmemorywiththetimer,the
diagnosticunit,EDiTHdiagnostictool,theTP5radioremotecontrol/
EasyStartR+andtheEasyStartTtimer.
051
Flamedetectedwhenswitchingon If,afterbeingswitchedon,theresistancevalueoftheflamesensoris1274
(>70°C)theheater’sfanrunsforapprox15mintocooldown,iftheresist-
ancedoesnotfallbelowtheaforementionedvaluewithin15mintheheater
isswitchedoff.
• Checkflamesensor,seePage32fordiagramandtableofvalues,
ifok—>replacecontrolbox.
052
Safetytimeexceeded Noflamedetectedwithinthestartphase.
• Checkexhaustandcombustionairsystem.
• Checkfuelsupply/measurefuelquantity,seePage36.
• Checksparkplug(seefaultcode020and021)
• Checkflamesensor,diagramandtableofvalues,seePage32,
ifok—>replacecontrolbox.
053
054
055
056
Flamecutoutinthe
“POWER”controlstage
“HIGH”controlstage
“MEDIUM”controlstage
“LOW”controlstage
Theheaterhasignited(flamedetected)andsignalsflamecutoutduringa
powerstage.
• Checkexhaustandcombustionairsystem.
• Checkfuelsupply/measurefuelquantity,seePage36.
• Checkflamesensor,diagramandtableofvalues,seePage32,
ifok—>replacecontrolbox.
057
Flamecutoutfromstartphase
(Displayonlyifheaterslabelled“H-Kit”
onthenameplate.)
Aflamecutoutwasdetectedduringthestartphase..
• Checkexhaustandcombustionairsystem.
• Checkfuelsupply/measurefuelquantity,seePage36.
• Checkglowplug(seefaultcode020and021).
• Checkflamesensor,diagramandvaluestable,seepage32,
ifok—>replacecontrolbox.
060
Externaltemperaturesensor–
interruption
• DisconnecttheconnectorS4/B4oftheexternaltemperaturesensorand
measuretheresistancevalueatconnectorB2,fordiagramandtableofva-
luesseePage12,iftemperaturesensorok,reassembleconnectorS4/B4.
• DisconnectconnectorS1/B1attheheaterandmeasuretheresistance
valueinconnectorhousingB1betweenPIN6andPIN12.Ifinterruptedthe
ohmicvalueis>7175/3k*.
Ifresistancevalueok—>replacecontrolbox.
* Thisfaultcodeorohmicvalueisvalidforanewgenerationcontrolboxonly.Thisdiffersfromthecontrolboxtodatebyitscableloomwrappedincabletapeandbya
temperaturesensormountedontheside,whichbecomesvisiblewhenthecoverisremoved.