Malfunction Of Outdoor Unit Fan Motor - Daikin E-Series Service Manual

SiAU18-715
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
Check No.03
Refer to P.404
Troubleshooting
When the fan runs with speed less than a specified one for 6 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.03
Check on connector of fan
motor (Refering to
information on page 404)
Are the
resistances
between pins above
judgment?
YES
YES
YES
NO
NO
Troubleshooting for Outdoor Unit
Connect the connector.
Remove the obstacle.
Replace the fan motor of
outdoor unit.
Replace the fan motor of
outdoor unit.
Replace outdoor unit PC
board.
(Q0554)
363