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8 Troubleshooting
NOTICE
The R32 refrigerant leakage sensor is a semiconductor
detector which may incorrectly detect substances other
than R32 refrigerant. Avoid using chemical substances
(e.g.
organic
solvents,
concentrations, in the close proximity of the indoor unit
because this may cause misdetection by the R32
refrigerant leakage sensor.
NOTICE
Functionality of the safety measures are periodically
automatically checked. In case of malfunction, an error
code will be displayed on the user interface.
INFORMATION
The sensor has a lifetime of 10 years. The user interface
displays error "CH-05" 6 months before the end of the
sensor lifetime and error "CH-02" after the end of the
sensor lifetime. For more information, refer to the reference
guide of the user interface and contact your dealer.
In case of detection when the unit is operating
1 The user interface displays error "A0-11" and emits an alarm
sound. The status indicator blinks.
2 Contact your dealer immediately. For more information, see the
installation manual of the outdoor unit.
In case of detection when the unit is in standby
When the detection occurs when the unit is in standby, the unit
performs a "false detection check".
False detection check
1 The fan starts turning on the lowest setting.
2 The user interface displays error "A0-13" and emits an alarm
sound. The status indicator blinks.
3 The sensor checks if a refrigerant leakage or misdetection
occurred.
▪ No refrigerant leakage detected. Result: The system resumes
normal operation after approximately 2 minutes.
▪ Refrigerant leakage detected. Result:
1 The user interface displays error "A0-11" and emits an alarm
sound. The status indicator blinks.
2 Contact your dealer immediately. For more information, see the
installation manual of the outdoor unit.
INFORMATION
The minimum airflow during normal operation or during the
refrigerant leakage detection is always >240 m
INFORMATION
To stop the alarm of the user interface, see the reference
guide of the user interface.
Installation and operation manual
14
hair
spray,
paint)
in
high
3
/h.
8
Troubleshooting
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
WARNING
Stop operation and shut OFF the power if anything
unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may
cause breakage, electrical shock or fire. Contact your
dealer.
The system MUST be repaired by a qualified service person.
Malfunction
If a safety device such as a fuse, a
circuit breaker or a residual current
device frequently actuates or the ON/
OFF switch does NOT function properly.
If water leaks from the unit.
The operation switch does NOT function
properly.
If the user interface displays
If the system does NOT operate properly except for the above
mentioned cases and none of the above mentioned malfunctions is
evident, investigate the system in accordance with the following
procedures.
INFORMATION
Refer
to
the
reference
www.daikin.eu
for more troubleshooting tips. Use the
search function
to find your model.
If after checking all above items, it is impossible to fix the problem
yourself, contact your installer and state the symptoms, the complete
model name of the unit (with manufacturing number if possible) and
the installation date (possibly listed on the warranty card).
9
Relocation
Contact your dealer to remove and reinstall the entire unit. Moving
units requires technical expertise.
10
Disposal
NOTICE
Do NOT try to dismantle the system yourself: dismantling
of the system, treatment of the refrigerant, oil and other
parts MUST comply with applicable legislation. Units
MUST be treated at a specialised treatment facility for
reuse, recycling and recovery.
Measure
Turn OFF all main power
supply switches to the
unit.
Stop operation.
Turn OFF the power
supply.
Notify your installer and
.
report the error code. To
display an error code see
the reference guide of the
user interface.
guide
located
on
https://
FXHA-A
VRV system air conditioner
3P668115-5E – 2022.11
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