En-14
TROUBLESHOOTING
WARNING!
In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the Power
Supply Plug, and consult authorized service personnel.
Merely turning off the indoor unit’s power switch will not completely disconnect the unit from the power
source. Always be sure to disconnect the Power Supply Plug or turn off your circuit breaker to ensure
that power is completely off.
Before requesting service, perform the following checks:
Symptom Problem
See Page
NORMAL
FUNCTION
Doesn’t operate immedi-
ately:
● If the indoor unit is stopped and then immediately started again, the
compressor will not operate for about 3 minutes, in order to prevent
fuse blowouts.
●
Whenever the Power Supply Plug is disconnected and then recon-
nected to a power outlet, the protection circuit will operate for about
3 minutes, preventing unit operation during that period.
—
Noise is heard:
● During operation or immediately after stopping the unit, the sound
of water fl owing in the air conditioner’s piping may be heard. Also,
noise may be particularly noticeable for about 2 to 3 minutes after
starting operation (sound of refrigerant fl owing).
● During operation, a slight squeaking sound may be heard. This is
the result of minute expansion and contraction of the front panel
due to temperature changes.
—
●
During Heating operation, a sizzling sound may be heard occasional.
This sound is produced by the Automatic Defrosting operation.
15
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 indoor unit.
—
Mist or steam is emitted:
● During Cooling or Dry operation, a thin mist may be seen emitted
from the indoor unit. This results from the sudden cooling of room
air by the cool air emitted from the indoor unit, resulting in conden-
sation and misting.
—
● During Heating operation, water may be produced from the outdoor
unit due to Automatic Defrosting operation.
15
CLEANING AND CARE
About the Air Cleaning Filters
POLYPHENOL CATECHIN AIR CLEANING FILTER
(one sheet)
● The Air Cleaning Filters are disposable fi lters. (They can not be washed and reused.)
● For storage of the Air Cleaning Filters, use the fi lters as soon as possible after opening the package.
(The air cleaning effect decreases when the fi lters are left in the opened package)
● Generally, the fi lters should be exchanged about every three months.
Please buy designed air cleaning fi lters (UTR-FA16) (Sold separately) to exchange the used dirty air cleaning fi lter.
[Negative air ions deodorizing fi lter (one sheet) — light blue]
● The fi lter should be exchanged about every three years so as to maintain the deodorizing effect.
● Filter frame is not a one-off product.
Please buy designed deodorizing fi lter (UTR-FA16-2) (Sold separately) when exchanging the fi lter.
Maintenance of Deodorizing Filters
In order to maintain the deodorizing effect, please clean the fi lter in the follow way once three months.
1 Remove the deodorizing fi lter.
2 Clean with water and dry in the air.
1) Flush the fi lter with high-pressure hot water until the surface of the fi lter is covered with water. Please fl ush with diluent neutral
detergent.
(Never wash by reaming or rubbing, otherwise it will damage the deodorizing effect.)
2) Rinse with water fl ow.
3) Dry in shade.
3 Reinstall the deodorizing fi lter.
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