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Fujitsu Inverter 9374379453 Operating Manual page 15

Air conditioner compact cassette type heat & cool model (reverse cycle)
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Table of Contents
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

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