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Items to Check Before the Test Run
(1) Turn the remote power switch ON at least 12 hours in advance in order to energize the crankcase heater.
(2) Fully open the closed valves on the liquid tube and gas tube sides.
Test Run Using the Remote Controller
(1) Press and hold the remote controller
(2) Use either Heating or Cooling mode to perform the test run.
The outdoor unit will not operate for approximately 3 minutes after the power is turned ON or after
it stops operating.
(3) If normal operation is not possible, a code appears on the remote controller LCD display.
Refer to the section “Table of Self-Diagnostic Functions and Corrections” and correct the problem.
* When performing a test run using a wired remote controller, operation is possible without attaching the
cassette-type ceiling panel. (“P09” will not be displayed.)
“TEST” appears in the LCD display during the test run.
Temperature control is not possible when test run mode is engaged.
(This mode places a large load on the devices. Use it only when performing the test run.)
button for 4 seconds or longer. Then press the
button.
(4) After the test run is completed, press the
(5) For the test run of an inverter outdoor unit, operate the compressors for a minimum of 10 minutes (in order to
check for open phase).
Check that “TEST” disappears from the LCD display.
(This remote controller includes a function that cancels test run mode after a 60-minute timer has elapsed,
in order to prevent continuous test run operation.)
button again.
N OT E
Table of Self-Diagnostic Functions and Corrections (Type U1, T2, F1, N1 and Y2)
Wired
remote
controller
display
Indoor unit
receiver lamp
Cause
Correction
Nothing is
displayed
Nothing is
displayed.
Connect the remote controller correctly.
E01
displayed
Operation lamp is
blinking.
Group connection and simultaneous-operation
multi (Simultaneous multi system) system
Remote controller is not connected with indoor unit
correctly.
Automatic address setting has not been completed.
Inter-unit control wiring is cut or is not connected
correctly.
Remote controller is not connected with indoor unit
correctly.
Indoor unit power is not ON.
Turn ON the indoor unit power.
Check the remote controller and inter-unit control wiring.
Perform automatic address setting
(See section “Automatic Address Setting” for
Type U1, T2, F1, N1 and Y2 (for Link Wiring).).
E02
displayed
Remote controller is not connected with indoor unit
correctly.
Connect the remote controller correctly.
E14
displayed
Connect the wiring correctly.
E06
displayed
E04
displayed
Standby lamp is
blinking.
Remote control communication wiring is cut or is not
connected correctly.
Indoor-outdoor inter-unit wiring is not connected
correctly.
Inter-unit control wiring is cut or is not connected
correctly.
See section “Basic wiring diagram” for
Type U1, T2, F1,
N1 and Y2 (for Link Wiring).
Basic wiring diagram, and make the correct setting.
Check the remote control communication wiring.
Perform automatic address setting again.
E15
displayed
E16
displayed
P09
displayed
Timer lamp and
Standby lamp are
blinking alternately.
Indoor unit capacity is too low.
Indoor unit capacity is too high.
Check that the total capacities of the indoor and
outdoor units are appropriate.
P05
displayed
Operation lamp and
Standby lamp are
blinking alternately.
Reversed phase at one of the outdoor units in the
group.
Reverse 2 phases of the outdoor unit 3-phase power
and connect them correctly.
Fill up the gas appropriately.
Check that the indoor and outdoor unit types are
correct.
Connect the indoor unit ceiling panel connector
correctly.
Insufficient gas
P12
displayed
L02
displayed
L13
Check whether the fan holder is loose.
Check the wiring between the DC fan and the PCB.
DC fan trouble at one of the indoor units in the
group.
Ceiling panel connector at one of the indoor units in
the group is not connected correctly.
Indoor-outdoor unit type mismatch.
displayed
L07
Perform automatic address setting
(See section “Automatic Address Setting” for Type U1,
T2, F1, N1 and Y2 (for Link Wiring).).
L10
displayed
Both the Operation
lamp and Standby
lamp are blinking
together.
Check outdoor operation with separate maintenance-use remote controller.
Remote control communication wiring is connected
to the indoor unit, however it is set for individual
operation.
SM830231-02̲Single̲欧州.indb 310
SM830231-02̲Single̲欧州.indb 310
2014/09/19 13:21:49
2014/09/19 13:21:49
