Daikin VRVIII-S, Service Manual

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Troubleshooting by Indication on the remote control SiENBE34-703
126 Troubleshooting
3.4 “
A6
” Indoor Unit: Fan Motor (M1F) Lock, Overload
remote control
Display
A6
Applicable
Models All indoor unit models
Method of
Malfunction
Detection Detection by failure of signal for detecting number of turns to come from the fan motor
Malfunction
Decision
Conditions When number of turns can’t be detected even when output voltage to the fan is maximum
Supposed
Causes ! Fan motor lock
! Disconnected or faulty wiring between fan motor and PC board
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Caution
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)
Does the fan motor run?
Wiring between the
indoor unit PC board
and fan motor is
disconnected.
YES
YES
YES
NO
NO
NO
Is the wiring from the fan
motors ecurely connected
to connectors onthe indoor
unit PCboard?