Mitsubishi Electric MJ-E160HR-H Instruction Manual page 23

Symptom
The operating
noise is loud/
reverberates.
The operating
sound suddenly
The
increases in
unit
volume.
makes
The air blowing
noises.
sound changes in
volume.
The unit produces
a simmering
sound.
The unit produces
a buzz that sounds
intermittently (or
the compressor
does not activate).
When first used
The unit
produces
During DRYING
an odor.
INSIDE operation
The power plug or power socket
generates abnormal heat.
z Error message (Humidity indicator)
Digital Display
appears.
, , , , ,
appears.
z If the symptoms persist even after following the prescribed remedies, or the error message does not disappear,
unplug the power cord, and contact the Mitsubishi Electric Service Centre.
z When unplugging and plugging back the power cord into the power socket, wait at least one minute before
plugging it in.
z Check to see if the unit is on a slope or uneven surface which
causes the unit to tilt or wobble.
g Move to a safe and even surface.
z Check to see if the pre-filter is clogged.
g Clean according to the methods specified in the
"Maintenance" section.
z Operating the unit on a wood board or in a small room is likely to
cause acoustic resonance.
g Placing a soft mat underneath the unit can reduce the acoustic
resonance.
z Sound increases when the compressor starts operation.
(Approximately three minutes after turning on the unit, or during
AUTO and EASY operation.)
z The volume of the sound differs depending on the louvre angle.
z This is the sound of the refrigerant flow.
The sound can be heard when the unit is turned on, during
operation, or when operation stops. No sound can be heard
when the refrigerant flow stabilizes.
z This is the sound of the compressor when it starts up.
In AUTO and EASY modes, the compressor operates
intermittently, so there is compressor startup sound. The
compressor does not start when the operation ends or until 3
minutes has passed after the unit is turned on. This is to protect
the compressor from damage.
z The temperature of heat exchanger goes up rapidly, causing transient odor.
z The discharged moisture may emit an odor. It is common that the
PM2.5 filter cannot eliminate all the odors and the odors can be
absorbed by moisture inside the unit.
z Stop operation and contact the Mitsubishi Electric Service
Centre.
z Check to see if anything is blocking the air outlet.
g Remove the obstruction and plug the power cord into the
power socket again.
z Check to see if the pre-filter is clogged.
g Clean according to the "Maintenance" procedures.
z Malfunction
,
g Take note of error message, unplug the power cord, and contact
the Mitsubishi Electric Service Centre.
Cause/Remedy
Cause/Remedy
P4
P21
P5
P16
P21
23