Daikin RZQ Series FCQ20EVA Service Manual page 59

SiME281501E
5. Press INSPECTION/TEST button and operate normally.
6. Confirm function of unit according to the operation manual.
7. If the decoration panel on the indoor unit has not been installed, turn OFF the power after the test
operation.
PRECAUTIONS
 In Step 5. above, the test operation can be started even if test operation mode is set and the RUN/STOP
button is pressed in reverse order.
 Refer to the following diagnostic chart if the unit fails to run.
 After the test operation is complete, press the INSPECTION/TEST button once to put the unit in
INSPECTION mode. Make sure that the error code "
If any other error code is displayed, refer to the following diagnostic chart.
 Pressing the INSPECTION/TEST button 4 times returns the unit to normal operating mode.
[Mode switching]
Normal operating mode
Once
(Press
4 seconds
or more)
∗ After leaving 10 seconds or
more, the mode returns to
the normal operating mode.
Service Diagnosis
During the test operation, if the error code shown below is displayed on the remote controller, an installation
work error may be the cause.
Error code
E3, E4, L8, U0
E3, E4, L4, U8
U1
U2
U4, UF
UA
 If the remote controller displays error codes other than those above, the indoor and outdoor units may be
damaged.
For the error codes, please refer to the indoor unit's installation manual.
(Some error codes are not displayed depending on the indoor and outdoor units.)
Field Setting
∗
Once
"Error code"
On site setting
Installation work error
Failure to open the stop valve
Closed airflow path
Phase interruption
Unbalanced power
Improper connection of the
continuous wiring
Connection of incompatible indoor
unit
00
" (= normal) is displayed.
Once
∗
"Indoor unit type
display code" display
Once
Measures
Test Operation
Test operation
∗
"Outdoor unit type
code" display
Once
Remedial action
Open the stop valve.
Remove any obstacle to the airflow
path.
Correct the wiring.
Balance the power/Correct the
wiring.
Correct the wiring.
Connect appropriate indoor unit
(refer to the catalogue).
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