Fri-Jado 9124654, Руководство по обслуживанию

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Page 21 9124654 Service ManualUltra Sonic Humidifier 30001322 2021
5. Trouble Shooting
In case of no mist come out
● Check the PCB as follows.
It might be burn out the fuse resistance, R6.
Check it by tester. Set the resistance range, X1 and if you see
the indication Zero, the fuse is OK.
If it is showing over 5 ohm, the fuse is out of order.
Replace the PCB.
● Check the transist or of the PCB as follows.
Set the resistance range, X 1 of the tester.
Connect the black probe, MINUS at B side (Base) and then Red probe,
PLUS touch at C (Collector) or at E,(Emitter).
If the indication is showing under 10 ohm, the transistor is OK but if it
shows close to ZERO, the transistor is out of order.
Replace the PCB.
● Then next step checking should be performed.
Touch red probe, Plus at B side (Base) and then black probe, MINUS at
C (Collector) or at E, (Emitter).
If the indicator is showing infinity or big number of ohm, it is OK.
If the indicator is showing between Zero to 10 ohm, it is out of order.
If all transistors are in order, check the fuse for the PCB.
If it burn out, replace the PCB.
CAUTION:
If you find out of order by the above checking, the
PCB should be replaced immediately.
Otherwise, other components of the unit will be damaged.