Fujitsu Inverter 9374379453 Operating Manual page 15

TROUBLESHOOTING
Symptom
Doesn't operate at all: ●
CHECK
ONCE
MORE
Poor Cooling
(or *Heating)
performance:
The unit operates
differently from the
remote controller's
setting:
If the problem persists after performing these checks, or if you notice burning smells, or the OPERATION Indicator Lamp and the TIMER
Indicator Lamp À ashes, and ECONOMY Indicator Lamp À ashes fast. Immediately stop operation, turn off the electrical breaker and con-
sult authorized service personnel.
Has the circuit breaker been turned off?
●
Has there been a power failure?
●
Has a fuse blown out, or a circuit breaker been tripped?
●
Is the timer operating?
●
Is the air ¿ lter dirty?
●
Are the air conditioner's intake grille or outlet port blocked?
●
Did you adjust the room temperature settings (thermostat) correctly?
●
Is there a window or door open?
●
In the case of Cooling operation, is a window allowing bright sunlight to en-
ter? (Close the curtains.)
●
In the case of Cooling operation, are there heating apparatus and computers in-
side the room, or are there too many people in the room?
●
Is the unit set for QUIET operation?
●
Are the remote controller's batteries dead?
●
Are the remote controller's batteries loaded properly?
Problem See Page
—
7 to 8
—
—
4
En-14