Table of Contents
Advertisement
Humidity does not drop during the Dry operation.
□ You cannot set the target humidity in the Dry mode. If you feel
high humidity, set the temperature lower.
Airflow is weak or stops.
□ Is the fan speed set to Quiet?
⇒ To change the fan speed, refer to page 5.
□ Has the Fan Control for Energy Saving set? In this case, the
indoor unit fan may stop temporarily while the Cooling operation.
⇒ To cancel the Fan control for energy saving, refer to page
6.
□ <In the Dry mode> The indoor unit operates at low fan speed to
adjust the room humidity, and may stop from time to time.
□ <In the Auto mode> While the monitoring operation, the fan
rotates at very low speed.
Noise is heard.
□ Is the unit operating, or immediate after stopping operation?
In this case, refrigerant flowing sound may be heard. It may be
particularly noticeable for 2-3 minutes after starting operation.
□ Do you hear a slight squeaking sound during the operation?
This sound is produced by the minute expansion and contraction
of the front panel caused by temperature change.
Smell coming from the unit.
□ The air conditioner may absorb various smells generated from
interior textile, furniture, or cigarette smoke. These smells may be
emitted during the operation.
Mist or steam is emitted from the unit.
□ <In the Cooling or Dry mode> A thin mist may be generated by
condensation formed with sudden cooling process.
The unit operates differently from the remote controller setting.
□ Do you have an arrangement with your electric company for
Demand Response?
In this case, the air conditioning performance may become lower
or the operation may stop. (Refer to page 6.)
□ Are the batteries in the remote controller exhausted?
⇒ Replace the batteries.
Operation is delayed after restart.
□ Has the power supply turned from Off to On suddenly?
In this case, the compressor will not operate for about 3 minutes
to prevent a blowout of the fuse.
Immediately stop operation and turn off the electrical breaker in
following cases. Then consult authorized service personnel.
• The problem persists even if you perform these checks or
diagnostics.
• On the indoor unit, [ ] and [
■ State of indicator lamps
Lighting pattern:
Off,
On,
State
Causes and solutions
Filter indicator
⇒ Clean the air filter and reset the filter
sign.
(3 times)
Demand response operation
(Twice)
Error code display
⇒ Check the error code and consult
authorized service personnel.
(Fast)
] blink while [
] is blinking fast.
Blinking,
Any state
See
page
10
Timer setting error because of Auto restart
⇒ Reset the clock and timer settings.
Test run operation (for authorized
personnel only)
⇒ Press
Restricted function
■ Manual Auto operation and Filter indicator
reset
You can operate the air conditioner with
Status
Length of pressing down Mode or operation
In operation More than 3 seconds
Stopping
2 seconds or less
More than 3 seconds and
less than 10 seconds
More than 10 seconds
(Only for servicing.)
*
To stop the forced cooling, press this button or
controller.
■ Service check
If [ ] and [
] blink while [
unit, check the error code. The error code is 2-digit numbers or
characters.
1. Press [
]
The remote controller enters to the Service check mode and
"
" will appear on the remote controller display.
2. Press
The indoor unit emits 1 short beep each time the error code
changes.
When the corresponding error code is shown, the indoor
unit emits multiple beeps and all the indicator lamps on the
indoor unit blink.
The characters used for error code
A
J
9
To finish the Service check mode, press
The remote controller returns to the original display.
Tell the error code to authorized service personnel when
consulting them.
6
If the indoor unit emits multiple beeps at "00", no error is
detected.
En-10
to quit the test run.
on the indoor unit.
Stop
Filter indicator reset
Auto
Forced cooling
*
on the remote
] is blinking fast on the indoor
to change the shown error code.
(Max. 2 min/cycle)
C
F
P
U
.
9
4
9
Advertisement
Table of Contents
