Malfunction Of Outdoor Unit Fan Motor - Daikin Super Multi Plus D-Series Service Manual

Troubleshooting for Outdoor Unit
7.5

Malfunction of Outdoor Unit Fan Motor

E7
Remote
Controller
Display
Applicable
AII outdoor unit models
Models
Method of Malfunction of fan motor system is detected according to the fan speed detected by Hall IC
when the fan motor runs.
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
298
When the fan runs with speed less than a specified one for 14.5 seconds or more when the
fan motor running conditions are met
When malfunction is generated 4 times, the system shuts down.
Malfunction of fan motor
The harness connector between fan motor and PCB is left in disconnected, or faulty
connector
Fan does not run due to foreign matters tangled
Clearing condition: Operate for 5 minutes (normal)
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Connector
of fan motor is
disconnected.
NO
Is there any
obstacle around
the fan?
NO
Can the fan
be turned smoothly
with hand after disconnect
the connector of
fan motor?
YES
Check No. 9
Check on connector of fan
motor (Power supply cable)
Check No. 11
Check on pulse input of
position signal of fan inverter
PCB
Is the pulse inputted?
YES
YES
YES
NO
NO
SiEBE18-526
Connect the connector.
Remove the obstacle.
Replace the fan motor of
outdoor unit.
Replace the fan motor of
outdoor unit.
Replace outdoor unit PCB.
(Q0385)
Troubleshooting