20
Service Manual
Installation and Maintenance
Filter cleaning lamp: the lamp is on when the operation time of fan reaches to 250h totally.
Water blow protection lamp: the lamp blinks if water blow protection is occurred.
(5) Timer control
2h or 4h timer can be set, set timer off when the unit is on, set timer on when the unit is off. The buzzer will not give out a beep after
timer time reaches. Timer time is every 30min which recorded by memory function (read-in memory slug).
(6) Buzzer
When the controller is energized or receives any command or signal from the buttons or the remote controller, the buzzer will give
out a beep.
(7) Filter alarm function
a. After fan runs for 250h totally, filter lamp is on to remind customer clean filter.
b. When the unit is off, the filter lamp is off; the filter time can not be clearance when the unit is off.
