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34
English
Table 10
(5)
Stop the test run.
Table 11
11-2 ERROR CODES WHEN PERFORMING A TEST RUN
If the installation of the outdoor unit has NOT been done correctly, the following error codes may be displayed
on the user interface:
#
Action
Result
1
Press.
2
Select Position 0.
3
Change the position.
If the airflow flap of the indoor unit moves, operation is
OK.
If not, operation is not OK.
4
Press.
The home menu is displayed.
#
Action
Result
1
Press at least 4 seconds.
The Service Settings menu is displayed.
2
Select Test Operation.
3
Press.
The unit returns to normal operation, and the home
menu is displayed.
Error code
Possible cause
Nothing displayed
(The currently set temperature is
not displayed)
• The wiring is disconnected or there is a wiring error (between power supply
and outdoor unit, between outdoor unit and indoor units, between indoor unit
and remote controller)
• The fuse on the outdoor unit PCB has blown out.
E3, E4 or L8
• The stop valves are closed.
• The air inlet or air outlet is blocked.
E7
• There is a missing phase in case of three-phase power supply units.
• Note: Operation will be impossible. Turn OFF the power, recheck the wiring,
and switch two of the three electrical wires.
L4
The air inlet or air outlet is blocked.
U0
The sop valves are closed.
U2
• There is a voltage imbalance.
• There is a missing phase in case of three-phase power supply units. Note:
Operation will be impossible. Turn OFF the power, recheck the wiring, and
switch two of the three electrical wires.
U4 or UF
The inter-unit branch wiring is not correct.
UA
The outdoor and indoor unit are incompatible.
Return
Setting
Return
Setting
Air Volume/direction
Air Volume
Direction
Position 0
Low
Return Setting
Return
Setting
Air Volume/direction
Air Volume
Direction
Low
Position 0
Return
Setting
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
4PEN469441-1.book Page 34 Tuesday, March 21, 2017 1:49 PM