Daikin MC704AVM [30/44] Malfunction deci sion conditions

Daikin MC704VM [30/44] Malfunction deci sion conditions
EDBE81-327 Troubleshooting
Photocatalytic Air Purifiers 29
1 Models Covered 5 Troubleshooting
*Be sure to insert/pull out the connector after
turning off the power. It may cause malfunction.
MC704VM
Diagnosis 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 power
supply PCB.
Normal (Motor was
defective.)
2 Method of Mal-
function Detection
Abnormality of the fan motor is
detected by revolutions with the
hole IC while the fan motor is run-
ning.
3 Malfunction Deci-
sion conditions
When the fan motor is not revved
up.
4 Supposed Causes
Fan motor is defective.
Power supply PCB is defective.
Connector is off.
5. DC Fan Lock

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