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Out of service/Failure conditions
In particular situations, the VM can be fully or
partially out of service.
There are 3 categories (classified by severity):
A. failures due to scheduled maintenance
conditions which partially block the VM. By
these failures (out of coffee, too many dump
in the box, out of cups in case of cup
preselection) the VM is not out of service but
its dispensing function is somehow limited ;
B. failures due to scheduled maintenance
conditions which block the VM fully. By these
failures (out of cups, no water, too many
dumps in the box, too high water level in the
residues tray) the VM product dispensing is
disabled, thus inhibiting the payment
systems;
C. out of service conditions which disable the
entire VM. The VM is brought to this condition
when it detects failures which are not solvable
with scheduled maintenance. In this
condition, the payment systems are inhibited
and no VM load can be operated.
The following table resumes all failure and/or
error conditions which may occur on the VM,
listing for any of them:
possible cause description
category;
associated code (i.e. the code shown in
maintenance and registered in the error log);
effect on the VM state;
how to restore the VM normal operation - once
the failure/error cause has been removed