Omega OTEC IEWB Series Service Manual page 7

Mist is blown out.
Water may on the air outlet grilles.
Stop after some time running
Strange sound in indoor unit
Strange sound in outdoor unit
5
When the room humidity is relatively high, the
cooling operation or heating operation defrosting
ends, the air outlet may blow out water mist,
which is a normal physical phenomenon.
 When the ambient humidity is relatively
high, water droplets will be generated in the
air outlet, panel and other parts, which is a
normal physical phenomenon;
 Long-term cooling operation in an open
space will produce water droplets, please
close the doors and windows.
 If the panel is not tightly closed, causing air
leakage, water droplets may be generated on
the panel. Please close the panel securely.
 Reach setting temperature
 In defrosting mode
 Timer OFF is set

The dust filter accumulates too much dust.
Please clean the dust filter in time;
 When the plastic parts of the indoor unit
expand and contract with heat, it may
produce frictional sound.
 After the "TURBO" function is turned on,
the wind noise is loud.

The indoor unit panel is not closed tightly or
the air inlet is obstructed. Please close the
panel again or remove the obstruction of the
air inlet.

The sound of refrigerant flowing when it is
running or just stopped, which is a normal
phenomenon.
 After running for a period of time, a "puff"
sound is made, which is the sound of the
four-way valve reversing when the outdoor
unit turns to defrosting mode, which is a
normal phenomenon.