EDUS39-600-F6 Installation
FXAQ-M 39
10. TEST OPERATION
Make sure the service panels are closed on the indoor and outdoor units.
Refer to the installation manual of the outdoor unit.
• The operation lamp of the remote controller flashes when a malfunction occurs. Check the malfunction code on on
the liquid crystal display to identify the specific problem. An explanation of malfunction codes and its corresponding
trouble is provided in the installation manual of the outdoor unit.
If any of the items in Table 5 are displayed, there may be a problem with the wiring or power so check the wiring
again.
Table 5
•If U3 is lit, the malfunction code shows the test operation has not been performed yet.
Remote controller display Content
Under Centralized Control is
lit
• There is a short circuit at the FORCED OFF terminals (T1, T2).
U4 is lit
UH is lit
• 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.
• The transmission wiring is cut.
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.
• The remote controller wiring is cut.
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