SiUS281811EA Troubleshooting by Error Codes
Part 6 Service Diagnosis 223
4.9 Indoor Fan Motor Abnormality
4.9.1 Indoor Fan Motor Abnormality (FHQ-P, FHQ-M Models)
Error Code A6
Applicable
Models
FHQ-P, FHQ-M
Method of Error
Detection
This error is detected if there is no revolution detection signal output from the fan motor.
Error Decision
Conditions
When no revolutions can be detected even at the maximum output voltage to the fan
Supposed
Causes
Defective indoor fan motor
Broken wires
Defective contact.
Troubleshooting
CHECK 16 Refer to page 306.
YES
NO
NO
YES
Check the indoor fan motor and
the wiring circuits of the fan
motor.
Replace the indoor unit main
PCB (A1P).
Properly connect the connectors.
(At this time, check for any
defective connector contact or
broken wires.)
Is the
X4A
connector securely
connected?
Is the
power of 12
VDC supplied
between the Pins 1
and 3 when the X4A is
disconnected
and the power
supply turns
ON?
CHECK 16
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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