7. Electrical Installations
119
Devicesthatsetoduringoperationshowthatthereisa
defect;theymustbecheckedand/orrepairedbyanelectrical
engineeringspecialist.
Switchingitbackonagainandagainwilldonogood.The
automaticcircuitbreakeralsogoesowhentherocker
switchisheldrmlyinplace.
Operation when the motor is running
Assoonasthemotorisrunning,arelayconnectsthestarter
batteryandthemotorhomebatteryinparallel.Therefore,the
dynamochargesbothbatteries.Ifthevehicleengineisissued,
bothbatteriesaredisconnectedfromeachotheragain.Inthis
way,thestarterbatterycannotbedischargedbyequipmentin
the motor home.
The12Vsupplyfortherefrigeratoronlyfunctionswhenyou
aredriving.Ifthemotorhasstopped,the12Voperationofthe
refrigeratorisautomaticallyturnedoagain.
Alwaysturnthemotorobeforehookingupthe230V
mainsconnectionviatheCEEexternalsocket.
-Iftheautomaticcircuitbreakergoesoabruptlyagain,thereis
either a short circuit or an earth fault.
Tochargeadischargedmotorhomebatteryoptimallywhile
driving,disconnectthe12V operationoftherefrigerator
andturnoasmuchequipmentaspossiblethatuses12V.
Checklist
•Turnothemotor.
•Switchonthe12Vmasterswitch.
•Turnoallequipmentthatuses12V.
•Startthemotor.
The voltage of the motor home battery must rise if
- theenginespeedisabovetheidlingspeed,
- thevehicle‘sbatteryisnotcompletelydischarged.
Thecontrolpanelshowswhetherornotthegeneratorhas
beencharged.Ifthisisnotthecase,pleasecheckthefollowing:
• Isthe50Afuseinthesupplylinetotheancillarybattery
nearthemotorbatteryfunctioningproperly?
• Isthe“Motorrunning”signalontheinputmoduleon?