A6" Indoor Unit: Fan Motor (M1F) Lock, Overload - Daikin FCQ18PVJU Service Manual

Troubleshooting by Indication on the Remote Controller
A6
3.4 " " Indoor Unit: Fan Motor (M1F) Lock, Overload
A6
Remote
Controller
Display
Applicable
All indoor unit models
Models
Method of
Detection by failure of signal for detecting number of turns to come from the fan motor
Malfunction
Detection
Malfunction When the number of turns cannot be detected even when output voltage to the fan is maximum
Decision
Conditions
 Fan motor lock
Supposed
 Disconnected or faulty wiring between fan motor and P.C.B.
Causes
Troubleshooting
89
Be sure to turn off the power switch before connecting or disconnecting
Caution
the connector or parts could be damaged.
Is the
wiring from the fan
NO
motor securely connected
to connectors on the
indoor unit
P.C.B.?
YES
Wiring
between the
YES
indoor unit P.C.B. and
fan motor is
disconnected.
NO
YES
Does the fan motor run?
NO
SiUS28-902_a
Connect the wiring and turn on
again.
Fix the wiring and turn on again.
Replace the indoor unit P.C.B.
Replace the fan motor.
Troubleshooting