Troubleshooting by Remote Controller Si20-701_B
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3.3 Detailed Error Codes
3.3.1 Indoor Unit
Error code
Troubleshooting
Description of error Description of diagnosis
A6 - 01 Fan motor locked A locked fan motor current
has been detected.
Turn the fan by hand to check
for the connection of
connectors.
A6 - 10 Fan overcurrent error A fan motor overcurrent has
been detected.
Check for the connection of
the connector between the
fan motor and the fan PCB. If
the connection is normal,
replace the fan motor. If this
still cannot solve the error,
replace the fan PCB.
A6 - 11 Fan position detection error An error in the detection of
position of the fan motor.
Check for the connection of
the connector between the
fan motor and the fan PCB. If
the connection is normal,
replace the fan motor. If this
still cannot solve the error,
replace the fan PCB.
AH - 03 Transmission error (between
the self-cleaning decoration
panel and the indoor unit)
[when the self-cleaning
decoration panel is mounted]
Check for the connection of
the harness connector
between the panel PCB and
the indoor unit PCB.
AH - 04 Dust detection sensor error
[when the self-cleaning
decoration panel is mounted]
Check for the connections of
the connector X12A on the
panel PCB and the
connectors X18A and X19A
on the sensor PCB.
AH - 05 Dust collection sign error
[when the self-cleaning
decoration panel is mounted]
Check for clogging with dust
at the dust collection port as
well as in the brush unit, S-
shaped pipe, and dust box.
Furthermore, check for any
stains of the light receiving
and emitting parts of the
infrared unit.
AH - 06 Air filter rotation error [when
the self-cleaning decoration
panel is mounted]
Check for anything getting in
the way of rotating the filter
(e.g. the filter comes off or the
drive gear is clogged with
foreign matters).
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