What To Do If The Insulation Test Fails - Nespresso Citiz Service Manual

4) Remove milk frother from platform.
5) Insert red test probe in central opening
of milk frother connector (ground con­
nection).
6) Press "measure" button.
7) Read off displayed insulation resist­
ance or test result.
8) Switch off test equipment.
9) Short red with black test probe to
make sure that test voltage is dis­
charged.
10) Fill in result in test report.
9.9.4 What to do if the insulation test fails
Risk of damage!
A sparkover can damage the electronic 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 troubleshooting
check list (see page 49).
• In case of doubt an insultation test on the milk frother alone can be carried out on
the coffee machine Citiz & milk: touch phase and neutral contacts at the bottom with
one test probe successively and the metallic upper part with the other test probe.
If insulation test fails, replace milk frother.
F U N C T I O N T E S T S
Citiz service manual
147