Operating instructions

En-12

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?

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

—

● Is the timer operating?

5 to 7

Poor Cooling (or

*Heating) performance:

● Is the air ﬁ 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

enter? (Close the curtains.)

● In the case of Cooling operation, are there heating apparatus and com-

puters inside the room, or are there too many people in the room?

—

If the problem persists after performing these checks, or if you notice burning smells, or the TIMER indicator lamp and operation indica-

tor lamp ﬂ ashes, stop operation immediately, disconnect the power supply, and consult with authorized service personnel.

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