Troubleshooting for SA Indoor Unit SiBE121135_A
191 Service Diagnosis
6.3.3 DC Motor (FBQ60C8VEB)
Error Code A6
Method of Error
Detection
The signal from the fan motor detects abnormal fan speed.
Error Decision
Conditions
The fan rotation does not increase.
Supposed
Causes
îš„ Foreign matters stuck in the fan
îš„ Disconnection of connector
îš„ Defective fan motor
îš„ Defective fan PCB
Troubleshooting
NO
YES
Are the connectors from
the fan motor properly connected to
the fan PCB?
YES
Is there any foreign matter
around the fan?
NO
NO
Is the
resistance between each pin
higher than 1Ω?
YES
Turn off the power supply and wait for 10 minutes.
Turn off the power supply and wait for 10 minutes.
Check the fan motor connector. (See the Note.)
Turn on the power supply with the fan motor
connector (X2A) disconnected.
Remove the foreign matter.
Connect the connectors properly.
(X1A, X2A)
YES
NO
Connect the connectors properly.
(X3A, X70A)
Replace the indoor fan motor
and the fan PCB (A2P).
Replace the fan PCB (A2P).
Replace the indoor fan motor if
the error
A6
recurs.
Replace the indoor fan motor.
HAP
lamp on the
indoor unit PCB blinks,
and HAP lamp on the fan
PCB (A2P) does
not blink.
YES
NO
NO
YES
Replace the fan PCB (A2P).
The fuse
(F3U) on the fan PCB (A2P) has
continuity.
Are the
connectors between the indoor
unit PCB (A1P) and the fan PCB (A2P)
properly connected?
Turn off the power supply and
wait for 10 minutes.
(R19169)
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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