Fujitsu ASU18T, AOU36T operation manual En-23, Troubleshooting, Symptom, Items to check

Models: ASU18T Room Air Conditioner Multi Split Type (3 rooms) AOU36T

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Items to check

TROUBLESHOOTING

Instructions relating to heating (*) are applicable only to “HEAT & COOL MODEL” (Reverse Cycle).

 

Symptom

Items to check

See Page

 

 

 

 

CHECK ONCE

Doesn’t operate at all:

● Has there been a power failure?

MORE

 

● Has a fuse blown out, or a circuit breaker been tripped?

 

 

 

 

 

 

 

 

● Is the timer operating?

8 to 9

 

 

 

 

 

Poor Cooling

● Is the air filter dirty?

 

 

(or *Heating)

● Is the air conditioner’s intake grille or outlet port blocked?

 

 

performance:

● 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?

 

 

 

 

 

 

The unit operates

● Are the remote control unit’s batteries dead?

 

 

differently from the

● Are the remote control unit’s batteries loaded properly?

5

 

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

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Fujitsu ASU18T, AOU36T, Room Air Conditioner Multi Split Type (3 rooms) En-23, Troubleshooting, Symptom, Items to check