Cumulative Time Check Function (Maintenance Mode) - Sharp FU-28H-S Service Manual

FU-28H-S

CUMULATIVE TIME CHECK FUNCTION (MAINTENANCE MODE)

This product (FU-28H) allows you to check the cumulative operation time.
This can be used as a guideline for conducting maintenance.
MAINTENANCE MODE SETTING METHOD
(1) Plug in the power plug and make sure operation has stopped.
(2) Press the air purifier's [Operation Change Button] and [OFF Timer Button] for at least 3 sec.
(3) When the buzzer beeps, the air purifier has entered the maintenance mode.
(4) You can tell the approximate accumulative time by the number of times the lamps shown in the illustration below
flash.
Lights Indication
0 hr to 1,440 hr
Operation
(0 month to
cumulative time
under 2 months)
*The values shown in parentheses ( ) are guidelines for when operation is conducted 24-hours per day.
CUMULATIVE TIME RESET METHOD
Press the air purifier's [OFF Timer Button] for 1 sec.
The buzzer will beep and the lights will all turn off. The cumulative time is now reset.
MAINTENANCE MODE CANCELLATION METHOD
Press the air purifier's [POWER ON/OFF Button] while in the maintenance mode.
The buzzer will beep and operation will stop.
4H 4H
1H 1H
Up to 2,880 hr
(2 month to (4 month to
under 4 months) under 6 months)
4H 4H
1H 1H
Up to 4,320 hr Up to 5,760 hr
(6 month to
under 8 months)
32
4H 4H
1H 1H
Up to 7,200 hr
Over 7,200 hr
(8 month to
(10 months or more)
under 10 months)