AirStage ARUL9RLAV Betriebshandbuch - Seite 6

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The following conditions may not be breakdowns so check again.

Symptom

Doesn't operate at all:

The operation mode cannot be

changed:

Poor Cooling (or Heating)

performance:

Set the temperature lower than

the room temperature and use it:

In the following situations stop operation immediately and get in touch with authorized service personnel.

●

The problem cannot be solved even when the troubleshooting checks have been performed.

●

The FILTER indicator lamp (red) is ﬂ ashing very fast (when receiver unit is connected).

●

The wired remote controller or simple remote controller indicate Er (when connected).

●

It has burning smell.

●

For details on marking the Flashing lamps, please refer to the Manual of "IR Receiver Unit" or "Wired Remote Controller".

En-5

●

Has there been a power failure?

●

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

●

Is the main power switch set to the OFF position?

●

Are you trying to engage in an operation different from the priority state?

●

Is it in standby state?

●

Are you trying to change to an operation different from the priority conditions?

●

Did you adjust the room temperature settings (thermostat) correctly?

●

Is the air ﬁ lter dirty?

●

Are the air conditioner's inlet port or outlet port blocked?

●

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 computers inside the room, or

are there too many people in the room?

●

Is the fan speed set to low?

●

Temperature does not fall down well.

Temperature may not fall down depending on the room conditions.

(While high humidity or the room temperature is high.)

Items to check

See page

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