A6" Indoor Unit: Fan Motor (M1F) Lock, Overload - Daikin VRV II RXYQ5MY1B Service Manual

SiE39-404
2.4

"A6" Indoor Unit: Fan Motor (M1F) Lock, Overload

A6
Remote
Controller
Display
Applicable All indoor units
Models
Method of
Detection by failure of signal for detecting number of turns to come from the fan motor
Malfunction
Detection
Malfunction When number of turns can't be detected even when output voltage to the fan is maximum
Decision
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
Fan motor lock
Disconnected or faulty wiring between fan motor and PC board
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Caution
Is the
wiring from the fan
motor securely connected
to connectors on the
indoor unit PC
board?
YES
Wiring
between the
indoor unit PC board and
fan motor is
disconnected.
NO
Does the fan motor run?
NO
Troubleshooting by Indication on the Remote Controller
NO
YES
YES
Connect the wiring and turn on
again.
Fix the wiring and turn on again.
Replace the indoor unit PC board.
Replace the fan motor.
(V2779)
177