8 Troubleshooting
Installation and operation manual
14
EKVDX32~100A2VEB
VRV system air conditioner
4P555815-1A – 2021.08
INFORMATION
Lifetime of the sensor is 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.
INFORMATION
To stop alarm of the user interface see the reference guide
of the user interface.
INFORMATION
The minimum airflow during normal operation or during the
refrigerant leakage detection is always >240 m
3
/h.
In case detection occurs when the unit is on standby:
▪ User interface displays error "
A0-11
", emits alarm sound and
status indicator is blinking.
▪ The fan of the heat reclaim ventilation unit begins rotating at
ultra high speed.
▪ Contact your dealer immediately. For more information, see the
installation manual of the outdoor unit.
Airflow rate threshold levels
Airflow rates too low imply a safety concern in case there is R32
leakage. Therefore, when the R32 safety settings are active, three
airflow rate threshold levels are taken into account.
Level
Airflow rate
System response
Action required
1
Lower than normal User interface displays error
"
A6-30"
.
Auto recovery: no action required.
The error disappears.
If not, contact your dealer to
check for a dirty air filter, leakage
in ducting, …
2
Too low
▪
User interface displays error
"
A6-29"
or
"UJ-38"
.
▪
VAM and EKVDX both shut
down.
Contact your dealer to:
▪
clean the filter.
▪
check the installation for loose
ducting, closed dampers,…
▪
reset the user interface (also
possible by user).
3
Below critical
airflow threshold
▪
User interface displays error
"
A6-28"
or
"UJ-37"
.
▪
In case there is a leak, it will
be detected but because
airflow is below the legal limit,
the system will automatically
start refrigerant recovery
operation to store all
refrigerant into the outdoor
unit. When recovery is
finished, the system unit goes
in locked status. Service is
needed to repair and re-
activate the system. Refer to
the service manual for more
information.
Contact your dealer to repair and
re-activate the system. Refer to
the service manual for more
information.
7.2
To clean the air outlet
WARNING
Do NOT let the indoor unit get wet.
Possible
consequence:
Electrical shock or fire.
Clean with a soft cloth. If it is difficult to remove stains, use water or
a neutral detergent.
8
Troubleshooting
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
The system MUST be repaired by a qualified service person.
Malfunction
Measure
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.
Turn OFF all main power
supply switches to the
unit.
If water leaks from the unit.
Stop operation.
The operation switch does NOT function
properly.
Turn OFF the power
supply.
If the user interface displays
.
Notify your installer and
report the error code. To
display an error code see
the reference guide of the
user interface.
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 guide located on
www.daikineurope.com/support-and-manuals/product-
information/
for more troubleshooting tips.
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).
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.
9
Relocation
Contact your dealer for removing and reinstalling the total 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.
