54
54
CARE AND MAINTENANCE
COMMON ISSUES
The following problems are not a malfunction and in most situations will not require repairs.
Issue
Possible Causes
Unit does not turn
on when pressing
ON/OFF button
The Unit has a 3-minute protection feature that prevents the
unit from overloading. The unit cannot be restarted within
three minutes of being turned off.
The unit changes
from COOL/HEAT
mode to FAN mode
The unit may change its setting to prevent frost from forming
on the unit. Once the temperature increases, the unit will start
operating in the previously selected mode again.
The set temperature has been reached, at which point the unit
turns off the compressor. The unit will continue operating when
the temperature fluctuates again.
The indoor unit
emits white mist
In humid regions, a large temperature difference between the
room’s air and the conditioned air can cause white mist.
Both the indoor and
outdoor units emit
white mist
When the unit restarts in HEAT mode after defrosting, white mist
may be emitted due to moisture generated from the defrosting
process.
The indoor unit
makes noises
A rushing air sound may occur when the louver resets its
position.
A squeaking sound may occur after running the unit in HEAT
mode due to expansion and contraction of the unit’s plastic
parts.
Both the indoor unit
and outdoor unit
make noises
Low hissing sound during operation: This is normal and is caused
by refrigerant gas flowing through both indoor and outdoor
units.
Low hissing sound when the system starts, has just stopped
running, or is defrosting: This noise is normal and is caused by
the refrigerant gas stopping or changing direction.
Squeaking sound: Normal expansion and contraction of
plastic and metal parts caused by temperature changes during
operation can cause squeaking noises.
The outdoor unit
makes noises
The unit will make different sounds based on its current operating
mode.
Dust is emitted from
either the indoor or
outdoor unit
The unit may accumulate dust during extended periods of non-
use, which will be emitted when the unit is turned on. This can be
mitigated by covering the unit during long periods of inactivity.
The unit emits a bad
odor
The unit may absorb odors from the environment (such as
furniture, cooking, cigarettes, etc.) which will be emitted during
operations.
The unit’s filters have become moldy and should be cleaned.
The fan of the
outdoor unit does
not operate
During operation, the fan speed is controlled to optimize product
operation.
Operation is erratic,
unpredictable, or
unit is unresponsive
Interference from cell phone towers and remote boosters may
cause the unit to malfunction.
In this case, try the following:
t Disconnect the power, then reconnect.
t Press ON/OFF button on remote control to restart operation.
SAFETY PRECAUTIONS
If ANY of the following conditions
occurs, turn off your unit immediately!
t You smell a burning odor
t The unit emits loud or abnormal
sounds
t A power fuse blows or the circuit
breaker frequently trips
t Water or other objects fall into or
out of the unit
DO NOT
ATTEMPT TO FIX THESE
YOURSELF! CONTACT AUTHORIZED
SERVICE PROVIDER IMMEDIATELY!
NOTE:
If problem persists, contact a local
dealer or your nearest customer service
center.
Provide them with a detailed
description of the unit malfunction as
well as your model number.
55
Problem
Possible Causes
Solution
