SiBE31-801_C Troubleshooting by Indication on the Remote Controller
Troubleshooting 226
“
A6
” Indoor Unit : Malfunction of Indoor Unit Fan Motor
Remote
Controller
Display
A6
Applicable
Models
FXHQ32~100MAVE, FXDQ20~32PB, 40~63NBVE
Method of
Malfunction
Detection
This malfunction is detected if there is no revolutions detection signal output from the fan motor.
Malfunction
Decision
Conditions
When no revolutions can be detected even at the maximum output voltage to the fan
Supposed
Causes
Faulty indoor fan motor
Broken wires
Faulty contact
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Properly connect the connectors.
(At this time, check for any faulty
connector contact or broken
wires.)
Check the indoor unit fan motor
and the wiring circuits of the
motor.
Replace the indoor unit PCB.
Are the X4A and
X27A connectors
securely connected?
Is the power of approx.
12VDC supplied between
the Pins1 and 3 when the
X27A is disconnected and
the power supply turns
ON?
NO
YES
YES
NO
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