Coway CHP-671R/L, Руководство по обслуживанию, Страница: 33 / 74

A
No
No
Yes
No
Yes
Yes
No
No
Yes
4. Fault diagnosis
4-1 Checking faults by symptoms
4-1-1 Power malfunction
Fault diagnosis
Coway co., Ltd 4-1
Power malfunction
Power malfunction if below rated
voltage
Connector contact malfunction
The control panel and display
panel are not illuminated.
Check household supply power
Connect connector properly
Power is irregular or 0 V
Check SMPS output voltage
DC 24 V, DC 5 V
Check socket wiring connection
malfunction or power failure
Check and replace SMPS
FUSE current flow normal
MAIN PBA connector contact
malfunction
Check FUSE and then
replace SMPS
Replace and check MAIN PBA
Is the power socket
voltage normal?
Is the SMPS connector
contact normal?
Is the MAIN PBA input
rated voltage?
Is the SMPS FUSE fused?
Is the MAIN PBA
connector contact normal?