Daikin MC707VM-S Manual page 34

SiBE81-623A
6.2.4 DC fan locks.
Caution
1
Models Covered
MC707VM-S
MC707VM-W
2
Method of Mal-
function Detection
Abnormality of the fan motor is
detected by revolutions with the Hall
IC while the fan motor is running.
3
Malfunction Deci-
sion conditions
When the fan motor is not revved
up.
4
Supposed Causes
•
Fan motor is defective.
•
Power supply and control PCB is
defective.
•
Connector is off.
Photocatalytic Air Purifiers
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
5
Troubleshooting
Diagnosis
Four airflow rate indicators
blink simultaneously.
Retry to operate with
ON/OFF switch.
Airflow rate indicators
blink then go off.
Yes
Is fan motor connector off?
No
Troubleshooting
Remedy
NOTE: If connector
is unplugged with
unit turned on, fan
motor may be dam-
aged. (Turn off
power before plug-
ging in connector.)
Correct.
Replace the fan
motor.
•
When the indica-
tors blink after
restarting, replace
the power supply
and control PCB.
33