Specifications

Installation EDUS39-900A-F4
38 FXMQ-P
11. TEST OPERATION
Refer to the installation manual of the outdoor unit.
• The operation lamp of the remote controller will flash when
an malfunction occurs. Check the malfunction code on the
liquid crystal display to identify the point of trouble. An
explanation of malfunction codes and the corresponding
trouble is provided in “CAUTION FOR SERVICING” of the
outdoor unit.
If any of the items in Table 7 are displayed, there may be a
problem with the wiring or power, so check the wiring again.
Ta bl e 6
Ta bl e 7
• If interior finish work is continuing on completion of the test
operation of the air conditioner, explain the customer not to
operate the air conditioner until the interior finish work is
completed for the protection of the air conditioner.
Otherwise, substances that will be generated from interior
finish work materials, such as paint and adhesive agents,
may contaminate the air conditioner.
3PN06583-9R
Remote controller display Contents
“A8” lit
Error in power supply voltage to
indoor unit.
“C1” lit
Fan driver PCB of indoor unit 
indoor control PCB transmission
error.
“C6” lit
Improper combination of fan driver
PCB of indoor unit or setting failure
in control PCB type.
“U3” lit
Test operation of outdoor unit has
not been finished.
Remote control display Content
“ ” is lit up
• There is a short circuit at the
FORCED OFF terminals (T1,
T2)
“U4” is lit up
“UH” is lit up
• The power on the outdoor
unit is off.
• The outdoor unit has not
been wired for power supply.
• Incorrect wiring for the
transmission wiring and / or
FORCED OFF wiring.
No display
• The power on the indoor unit
is off.
• The indoor unit has not been
wired for power supply.
• Incorrect wiring for the
remote controller wiring, the
transmission wiring and / or
the FORCED OFF wiring.