Indoor Unit Fan Motor Lock - Daikin Super Multi Plus D-Series Service Manual

Troubleshooting for SkyAir Indoor Unit
5.4

Indoor Unit Fan Motor Lock

A6
Remote
Controller
Display
Applicable
FHQ-BU
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
272
Failure of indoor unit fan motor
Broken or disconnected wire
Failure of contact
Failure of indoor unit PCB
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Are
X20A and
X26A properly
connected?
YES
With
X26A unplugged
and the power supply
turned on, is there about 12
VDC between pins 1
and 3 of
X26A?
YES
NO
NO
SiEBE18-526
Connect correctly.
Indoor unit PCB
replacement
Check indoor unit fan
motor and motor wiring.
(Q0413)
Troubleshooting