Error Codes (Sub Codes) - Daikin VRV Aurora RXLQ-TATJU Series Service Manual

SiUS341802EC
3.2

Error Codes (Sub Codes)

If an error code like the one shown below is displayed when a wired remote controller is in use,
make a detailed diagnosis or a diagnosis of the relevant unit.
3.2.1 Indoor Unit
Error code
A0 - 01 External protection device abnormality
Fan motor locked
A6 - 01
Fan overcurrent error
A6 - 10
Fan position detection error
A6 - 11
A6 - 20 Indoor fan motor status abnormality
A6 - 21 Low indoor airflow
A8 - 01 Power supply voltage error
Electronic expansion valve error
A9 - 01
Refrigerant leakage detection error
A9 - 02
AA - 03 Gas furnace abnormality
Transmission error (between the self-cleaning decoration
AH - 03 panel and the indoor unit)
(when the self-cleaning decoration panel is mounted)
Dust detection sensor error
AH - 04 (when the self-cleaning decoration panel is mounted)
Dust collection sign error
(when the self-cleaning decoration panel is mounted)
AH - 05
Air filter rotation error
AH - 06 (when the self-cleaning decoration panel is mounted)
Damper rotation error
AH - 07 (when the self-cleaning decoration panel is mounted)
Filter auto clean operation error
AH - 08 (when the self-cleaning decoration panel is mounted)
Filter auto clean operation start disabled error
AH - 09 (when the self-cleaning decoration panel is mounted)
Capacity setting error
AJ - 01
Electronic expansion valve setting error
AJ - 02
Transmission abnormality between indoor unit
C1 - 01
PCB and fan PCB
C1 - 07
Blower motor communication error
C1 - 08 Climate Talk Communication error
Defective combination of indoor unit PCB and the fan PCB A combination of indoor unit PCB and the fan PCB is
Capacity setting abnormality
C6 - 01
Blower motor HP mismatch
Part 6 Service Diagnosis
Error Description
Troubleshooting
Refer to page 231.
A locked fan motor current has been detected. Turn the fan
by hand to check for the connection of connectors.
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.
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.
Refer to page 245.
Refer to page 246.
Check for the input voltage of the fan motor.
There is an error in the electronic expansion valve coil or a
connector disconnected.
Refrigerant leaks even if the electronic expansion valve is
closed. Replace the electronic expansion valve.
Refer to page 252.
Check for the connection of the harness connector
between the panel PCB and the indoor unit PCB.
Check for the connections of the connector X12A on the
panel PCB and the connectors X18A and X19A on the
sensor PCB.
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.
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 matter).
The damper does not rotate normally. Check for any
foreign matter around the damper and for the operation of
the gear and limit switch.
The unit has not yet completed the filter self-cleaning
operation even after the lapse of specified period of time.
Check for any external noise, etc.
The unit has been put into a state in which the filter self-
cleaning operation is disabled. Check the unit for the
operating conditions.
There is an error in the capacity setting of the indoor unit
PCB.
There is a fault in the setting of the gear type electronic
expansion valve/direct acting type electronic expansion
valve.
Check for the conditions of transmission between the
indoor unit PCB and the fan PCB.
Refer to page 268.
Refer to page 269.
defective. Check whether the capacity setting adaptor is
correct and the type of the fan PCB is correct.
Refer to page 273.
Troubleshooting by Error Code
Diagnosis
218