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

SiENBE18-621
7.5

Malfunction of Outdoor Unit Fan Motor

E7
Remote Control
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
" When the fan runs with speed less than a specified one for 6 seconds or more when the fan
Malfunction
Decision
" When malfunction is generated 4 times, the system shuts down.
Conditions
" Malfunction of fan motor
Supposed
" The harness connector between fan motor and PCB is left in disconnected, or faulty
Causes
" Fan does not run due to foreign matters tangled
" Clearing condition: Operate for 5 minutes (normal)
Troubleshooting
Check No.03
Refer to P.354
Troubleshooting
motor running conditions are met
connector
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 350)
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.
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