Nespresso Essenza C91 - Protective Insulation Test Troubleshooting

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FunctionTests
ServiceManualC91/D91 enVersion1.0
Protectiveinsulationtest(3)
Testsequence(continued):
Theinsulationresistancemustbe
higherthan300kOhm(300,000Ohm).
S
ometestequipmentdisplaystest
passedorfailedinsteadoftheinsu
lationresistance.
6. Fillinmeasuredvalueinatestreport.
7. Touchclosinghandlescrewwithredtest
probe.
Donotscratchsurfaceofclosing
handlewithprobetip.
8. Press"measure"button.
9. Readoffdisplayedinsulationresistance
ortestresult.
Theinsulationresistancemustbe
higherthan300kOhm(300,000Ohm).
10. Fillinmeasuredvalueinatestreport.
11. Switchofftestequipment.
12. Shortredwithblacktestprobetomake
surethattestvoltageisdischarged.
Whattodoiftheinsulationtestfails
Riskofdamage!
Asparkovercandamagetheelec
troniccontrolboardandsensorsetc.
Assumethatthecoffeemachineisdefectafter
afailedinsulationtest.
Checkwiringandlocatefault.
Afterfaultclearanceproceedwithtrouble
shootingchecklist(seepage1 4).
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