Citizservicemanual
147
F U N C T I O N T E S T S
9.9.4 Whattodoiftheinsulationtestfails
• Assumethatthecoffeemachineisdefectafterafailedinsulationtest.
• Checkwiringandlocatefault.Afterfaultclearanceproceedwithtroubleshooting
checklist(seepage49).
• Incaseofdoubtaninsultationtestonthemilkfrotheralonecanbecarriedouton
thecoffeemachineCitiz&milk:touchphaseandneutralcontactsatthebottomwith
onetestprobesuccessivelyandthemetallicupperpartwiththeothertestprobe.
Ifinsulationtestfails,replacemilkfrother.
4) Removemilkfrotherfromplatform.
5) Insertredtestprobeincentralopening
ofmilkfrotherconnector(groundcon
nection).
6) Press"measure"button.
7) Readoffdisplayedinsulationresist
anceortestresult.
8) Switchofftestequipment.
9) Shortredwithblacktestprobeto
makesurethattestvoltageisdis
charged.
10)Fillinresultintestreport.
Riskofdamage!
Asparkovercandamagetheelectroniccontrolboardandsensorsetc.