Troubleshooting SiBE81-623A
34 Photocatalytic Air Purifiers
6.2.5 LED automatically operates.
1 Models Covered 5 Troubleshooting
MC707VM-S
MC707VM-W
Diagnosis Remedy
*Entering demo
mode
Keep holding down
reset switch and
turn on power.
Demo mode is
exited.
The unit is in demo
mode as reset
switch is blocked.
Check it.
2 Method of Mal-
function Detection
3 Malfunction Deci-
sion conditions
4 Supposed Causes
• Malfunction (demo mode)
• The reset switch is blocked.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Exit demo mode.
LED may be in demo mode.
Unplug unit or
turn off power.
Restart.
Does unit beep after 3
seconds?
No
Yes
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