SiBE81-623A
Troubleshooting
Photocatalytic Air Purifiers
31
6.2.2 Remote controller sends signals erratically.
1
Models Covered
5
Troubleshooting
MC707VM-S
MC707VM-W
Diagnosis
Remedy
*Release child lock.
Replace battery.
Replace remote
controller.
Replace display
PCB.
Change installation
location.
2
Method of Mal-
function Detection
3
Malfunction Deci-
sion conditions
You can operate with ON/OFF
switch on the unit, but not with
remote controller.
4
Supposed Causes
•
Remote controller battery is
exhausted.
•
Remote controller is defective.
•
Display PCB is defective.
•
Malfunction is caused by inverter
fluorescent lamps.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is battery correct?
(2.5V or more?)
Is signal properly transmitted?
Check if infrared signal is
sent from remote control.
(Check with an infrared checker.)
No
No
Yes
Yes
Check remote controller for
normal operation.
Is there any inverter fluorescent
lamps around the unit?
No
Yes
