Fujitsu Halcyon ASU18T Operating Manual page 24

TROUBLESHOOTING
Instructions relating to heating (*) are applicable only to "HEAT & COOL MODEL" (Reverse Cycle).
Symptom
CHECK ONCE Doesn't operate at all:
MORE
Poor Cooling
(or *Heating)
performance:
The unit operates
differently from the
remote control unit's
setting:
If the problem persists after performing these checks, or if you notice burning smells, or the TIMER indicator light flashes,
immediately stop operation, disconnect the power supply, and consult authorized service personnel.
En-23
Items to check
● Has there been a power failure?
● Has a fuse blown out, or a circuit breaker been tripped?
● Is the timer operating?
● Is the air filter dirty?
● Is the air conditioner's intake grille or outlet port blocked?
● Did you adjust the room temperature settings (thermostat) cor-
rectly?
● Is there a window or door open?
● In the case of Cooling operation, is a window allowing bright sun-
light to enter? (Close the curtains.)
● In the case of Cooling operation, are there heating apparatus and
computers inside the room, or are there too many people in the
room?
● Are the remote control unit's batteries dead?
● Are the remote control unit's batteries loaded properly?
See Page
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8 to 9
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5