En-3
TROUBLESHOOTING
The following conditions are not breakdowns or op-
eration failures.
Doesn’t operate immediately:
● If the unit is stopped and then immediately started again, the com-
pressor will not operate for about 3 minutes, in order to prevent fuse
blowouts.
● Whenever the electrical breaker is turned off then on again, the protec-
tion circuit will operate for about 3 minutes, preventing unit operation
during that period.
Airow is weak or stops:
● When Heating operation is started, indoor unit’s fan may temporarily
stop, to allow internal parts to warm up.
● During Heating operation, if the room temperature rises above the
thermostat setting, the outdoor unit will stop, and the indoor unit’s fan
will stop. If you wish to warm the room further, set the thermostat for a
higher setting.
● During oil recovery operation, the airow may stop for approximately
10 minutes. (See page 2)
● During Heating operation, the unit will temporarily stop operation (be-
tween 4 and 15 minutes) as the Automatic Defrosting mode operates.
(See page 2)
● The fan may operate at low speed during Dry operation or when the
unit is monitoring the room’s temperature.
● In the monitor AUTO operation, the fan will operate at low speed.
Flashing lamps:
● The OPERATION indicator lamp (green) ashes:
An oil recovery operation is being performed. (See page 2)
● The OPERATION indicator lamp (green) ashes:
An automatic defrosting operation is being per formed. (See page 2)
● The OPERATION indicator lamp (green) and TIMER indicator lamp
(orange) are ashing alternately:
It has recovered from a power outage.
● The OPERATION indicator lamp (green) and TIMER indicator lamp
(orange) are ashing simultaneously:
It is operating in trial operation mode. Ask a manager as there may be
maintenance being conducted.
● The OPERATION indicator lamp (green) lights up and the TIMER
indicator lamp (orange) ashes:
This is the standby state. (See page 2)
Noise is heard:
● In the following conditions there are sounds of water owing from the
indoor unit and the operation sound becomes loud. These are the
sounds of the owing of refrigerant.
When operation starts
When oil recovery operation nishes
When automatic defrosting operation nishes
● During operation, a slight squeaking sound may be heard. This is the
result of minute expansion and contraction of the panel due to tem-
perature changes.
● During Heating operation, a sizzling sound may be heard occasionally.
This sound is produced by the Automatic Defrosting operation. (See
page 2)
Smells:
● Some smell may be emitted from the indoor unit. This smell is the
result of room smells (furniture, tobacco, etc.) which have been taken
into the air conditioner.
Cleaning the Air Filter
When the lter lamp lights on, remove and clean the
lter.
1. Push the intake grille’s hooks inward towards the
center of the unit to open the intake grille.
2. Pull out the lter from the intake grille.
Grille Hook
Air Filter
3. Clean the air lter.
Remove the dust from the air lter by vacuuming or washing them. After
washing, allow the air lter to dry thoroughly in an area protected from
sunlight.
4. Re-attach the air lter to the intake grille.
(1) Replace the air lter into its holder.
(2) Make sure that the air lter makes contact with the lter stopper when
it is replaced into its holder.
5. Close the intake grille and push the intake grille’s
hooks outward.
Intake Grille
Air Filter
Filter
Hook
Grille Hook
● Dust can be cleaned from the air lter either with a vacuum cleaner,
or by washing the lter in a solution of mild detergent and warm water.
If you wash the lter, be sure to allow it to dry thoroughly in a shady
place before reinstalling.
● If dirt is allowed to accumulate on the air lter, airow will be reduced,
lowering operating efciency and increasing noise.
● After turning the power on, press the lter button on the remote control
to turn off the lter lamp. (Refer to the operation manual packed with
remote control unit for details.)
Cleaning the body
Wash the body with warm water, and then dry with a clean and soft cloth.
When not using for an extended period
Leave the breaker on for at least 12 hours before starting operation when
it is to be used again.
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