Fri-Jado 9124654, Руководство по обслуживанию

Страница: 14 / 28

Page 14 9124654 Service Manual Ultra Sonic Humidifier 30001322 2021
4. Maintenance
4.5 Ultrasonic oscillator
The oscillator placed at the bottom of the water tank (a round metal) ages and
deteriorates after many hours use, resulting in decreased mist output.
The humidification capability is restored with the oscillator replaced by a new
one.
● Shut the water supply valve and switch of the electric power supply.
● Unscrew two flange nuts fixing the oscillator at the bottom of the water
tank from the outside. (Use box type screw driver for 3mm- nut)
● Unplug two wires, yellow and orange colored one from PCB
(printed circuit board) and remove the oscillator from the water tank.
● Put the new one and fix it using the same 3mm-nuts. Keep the balance
of the tightening for two nuts.
● Connect/plug in the two wires to the PCB according to the color
indication. (YEL: Yellow color, ORG: Orange color)
The safety fuse will burn out if switch
on the unit without connecting the
oscillators.
Remark:
The life of the oscillator is around
5,000 running hours in total.
We recommend you to change the
oscillator for new one a little earlier
than 5,000 hours.