Chapter 5
Maintenance
and Checkup
50
Chapter 5
Maintenance and Checkup
CAUTION
• Before starting maintenance and checkup, be sure to break the electrical
circuit by turning off the power supply and disconnecting the plug from the
power outlet.
5.1
Replacing Filters
If clogging occurs, a “WARN2” warning appears. Replace the primary filter.
If “WARN2” remains displayed after replacing the primary filter, replace the secondary filter.
5.1.1
Replacing the Primary Filter
IMPORTANT
• The primary filter should be replaced in an area large enough to open the suction-
side filter case.
1.
Release the two snap locks for suction-side
filter case.
2.
Open the suction-side filter case and remove
the secondary filter.
Note
• If the secondary filter is hard to
remove, use a flathead
screwdriver, inserting the
screwdriver into the space (right or
left) between the suction-side filter
case and the secondary filter.
• If necessary, the suction-side filter
case can be removed from the
device body.
3.
Remove the primary filter.
The primary filter has its filter paper packing
inserted in the flange on the filter case.
4.
Install a new primary filter and put the secondary filter back in place.
5.
Close the suction-side filter case and secure it with the two snap locks.
Suction-side filter case
Snap locks
Secondary filter
Primary filter
