PLZ-4WL
97
Inspection
6
M
ai
nt
enance
Internal inspection
The PLZ-4WL’s electrolytic capacitor, fan motor, and backup-memory battery will wear out
over time.
The exact timing varies depending on how the PLZ-4WL is used, but we recommend that you
have the PLZ-4WL overhauled after about 10,000 hours of operation. An overhaul includes
internal inspection and cleaning.To have the PLZ-4WL overhauled, please contact a Kikusui
distributor or agent.
Backup battery replacement
The PLZ-4WL has a battery inside. The battery’s service life differs depending on the
environment that the PLZ-4WL is used in, but three years after it is purchased is a rough
estimate for the battery’s service life. If the panel settings are not retained after the power
switch is turned off and on, the battery has worn out. For information about replacing the
battery, contact your Kikusui agent or distributor.