Mitsubishi MJ-E16V-S1 User manual

CONTENTS
1. PRODUCT SPECIFICATIONS........................................................................................ 2
2. OUTER DIMENSIONS .................................................................................................... 3
3. EXTERNAL VIEW, PARTS AND DISPLAY SECTION................................................... 3
4. NAMES AND FUNCTIONS OF PARTS....................................................................... 4 ~ 8
5. TECHNICAL POINTS................................................................................................... 9 ~ 11
6. MAINTENANCE ......................................................................................................... 12 ~ 13
7. WIRING DIAGRAM AND BLOCK DIAGRAM
7.1 Wiring Diagram....................................................................................................... 14
7.2 Function List ....................................................................................................... 14 ~ 16
7.3 Timing Charts ..................................................................................................... 17 ~ 19
7.4 General Block Diagram ...................................................................................... 20 ~ 21
8. TROUBLESHOOTING PROCEDURE
8.1 Troubleshooting flowchart ................................................................................. 22 ~ 23
8.2 Key Component Check Procedures ....................................................................... 24
8.3 Error Indications and Corrective Actions ............................................................... 24
8.4 Self-Test Program and Execution Procedure ........................................................ 25
9. DISASSEMBLY AND REASSEMBLY HINTS .......................................................... 26 ~ 28
9.1 Disassembly Procedures ....................................................................................... 26
10. CONTINUOUS WATER DRAINAGE ............................................................................. 29
PARTS CATALOG .......................................................................................................... 30 ~ 37
11. TROUBLESHOOTING ............................................................................................... 38 ~ 39
PRECAUTIONS ............................................................................................................... 40 ~ 42
ADVANCED AND EVER ADVANCINGMITSUBISHI ELECTRIC
DEHUMIDIFIER 2005
SERVICE MANUAL
MJ-E16V-S1Model
Sold from 2005
No.MJW-0502A

2
1. Product specifications
Easy
Dehumidifying
* The brackets [ ] enclose values measured at a room
temperature of about 15°C or lower.
16.0
41
37
Single phase, 220-240V, 50Hz
275
1.3
5.5
Beige (C)
570 ×384 ×183
11.7
120
Slit fin
Slit fin
Thermal overcurrent relay
XB460VTE
150
Primary: 26.1 , subsidiary: 70.7
With temperature fuse
Sirocco fan
16
4
1 ~ 35 (°C)
Hot gas type
Built-in humidity sensor
Lead switch (automatic)
Auto-stopper tripped with about 4.0 liters of water
Commercial hose (inside diameter 15 mm)
EASY DEHUMIDIFYING · LAUNDRY · LOW · LOW TEMP ·
DRYING INSIDE · AIR PURIFIER
MJ-E16V-S1
Item
Power supply (phases,V,Hz)
Power consumption (W)
Operating current (A)
Starting current (A)
Color tone
Dimensions (H ×W ×D mm)
Weight (kg)
Coolant quantity (g)
Evaporator
Condenser
Model
(30°C room temperature, 80% relative humidity) (liters/day)
Laundry
Low
Performance
Product performance
CompressorBlower
Electrical characteristics
Operating noise levels(dB)
Compressor protection
Model
Output (W)
Winding resistance (Ω)(20°C)
Blower protection
Type
Output (W)
Flow rate selection
Speed (rpm)
Flow rate (m3/min)
Operating room
temperature (reference) (°C)
Air Purifier
Drying Inside
Low
Low Temp
The operating noise levels indicated are
typical values measured in our anechoic room.
700
675 or 700 675 or 720
2.5
675 or 700
2.4 or 2.5
675 - 700
[740]
2.4 - 2.5
[2.7]
2.4 or 2.5 2.4 or 2.6
Laundry
720
[740]
2.6
[2.7]
Dehumidifying capacity
Off timer (2h · 4h · 8h)
Ye s
16A
Defrosting method
Humidity control
Tank full protection
Tank capacity (liters)
Continuous drainage
Operation modes
Timer
Air cleaning performance
Plug socket rating

3
2. Outer Dimensions
3. External View, Parts and Display Section
Drain the water tank before use
Refrain from opening
doors/windows during
operation
Drying laundry indoors
Use the dehumidifier in a small, enclosed room.
Maintain room temperature above 16°C
with an air conditioner
Installing your dehumidifier
Make sure to leave some space around the
unit.
<For use in close proximity to
a wall>
Stop the louvre in the
vertical position. Blowing air
at the wall may cause
staining.
Operating noise
Place the unit on top of a mat. This reduces
vibration and noise. It also prevents leaving
depressions on carpets.
At least 50 cm At least
2 cm
At least
20 cm
At least 20 cm
At least
20 cm
¡Direct the louvres at the laundry.
¡Space laundry to improve airflow.
¡Drying times will vary depending on the nature of the
laundry and the room temperature. In low
temperatures, drying takes about twice as long as
normal. In low temperatures (10°C), drying takes
about twice as long as when normal (20°C+).
¡The airflow is strongest to the top right of the unit.

4
4. Names and Functions of Parts
Front
Back
Power plug
Sensor
Do not cover.
Side air intakes (left/right)
Do not block.
Control panel
Air purifying filter
Already installed at time of purchase
Handle
Raise handle to transport.
Pre-filter
Water tank
Front panel
Louvre
Continuous drainage outlet
Tank lid
Floating element
Front door
The water tank may contain water residue at
time of purchase. This is from final product
testing at the factory and is not due to a defect.
It is impossible to remove the back panel
because the two spots shown are fastened with
two special screws.
If the unit malfunctions, contact your Mitsubishi
dealer:
NOTE

5
All modes include dehumidifier
and air purifier functions.
Air purifier only operation.
The dehumidifier function is
disabled.
You can select from 5 operating modes.
Control Panel
¡AUTO
¡LOW
¡LAUNDRY
¡LOW TEMP
¡AIR PURIFIER
COLD
(COLD lamp)
DEF (DEF lamp) FULL (TANK FULL lamp)
The lamp lights up if
the room
temperature drops
below 15°C.
Activating LOW
TEMP mode is
recommended.
Airflow (dehumidifying) will stop and the
frost that has accumulated inside will be
melted and dropped into the tank when
the lamp is on.
Please wait a moment as operation will
resume in around 5 minutes.
While in DEFROST mode, airflow
(dehumidifying) will stop. The sounds
coming from the unit will also
change.
DEFROST will start automatically when
room temperature drops below 15°C
(This may be as often as once every 40
minutes).
The unit automatically shuts down and
indicates with the lamp and sound that
the water tank is full.
Empty the water tank.
¡Tank full lamp lights. (The unit
beeps.)
¡Airflow stops
¡Lamp turns off
• After removing the water and replacing the tank,
the Tank full lamp will go off, and then the unit
will automatically return to operation mode.
• When the Tank full lamp is lit, no operation but
ON/OFF is possible.
¡OFF Timer
Lamp
Set time lights.
¡OFF Timer
button
For setting the
Timer.
¡Power
button
Use this to
switch the unit
ON and OFF.
¡Drying
inside lamp
Flashes when
drying inside in
progress.
¡Drying
inside
button
Activates/
deactivates
drying inside.
¡Lamp
Current mode lights.
¡Auto button
Switches mode to
AUTO.
¡Mode button
For switching from
one operating
mode to another.

6
Modes
¡AUTO
The unit operates intermittently controlling the
airflow to remove the damp feeling in the air.
(There is no need to set the humidity level.)
When the room temperature is high, the blower
operates to decrease the damp feeling.
¡LOW
The dehumidifier operates at Low regardless of
the humidity level.
¡LAUNDRY
The dehumidifier operates at High regardless
of the humidity level.
¡LOW TEMP
The unit operates continuously automatically
controlling airflow according to room
temperature. The airflow is strongest below
15°C. The use of LOW TEMP mode is
recommended when the COLD lamp is lit.
¡AIR PURIFIER
The unit cleans the air by passing it through
the pre-filter and air purifying filter.
The dehumidifying function is disabled.
∞The air passes through the pre-filter and air
purifying filter in all modes, cleaning the air
even if the air purifier lamp is not lit.
∞Cigarette smoke and toxins found in smoke,
such as carbon monoxide, cannot be
removed with these filters.
Humidity level (%)
Room
temperature
(°C)
50
20 3027
60
Room temperature is
below 27°C - the unit
automatically sets the
humidity level
according to the
temperature.
Room temperature is
above 27°C - the unit
lowers the humidity
level to 50%, then
activates the blower.
The dehumidifier is
reactivated when
humidity rises to 60%.
¡ When temperature/humidification lowers, dehumidification level lowers.
Press
Changes with
every press
When the temperature is low, condensation
may still form on windows exposed to the
outside air even when LOW TEMP mode is
operating.
Information
Information
LOW, LAUNDRY, LOW
TEMP and AIR PURIFIER
LOW mode is for when you want to leave
the dehumidifier on, LAUNDRY mode is
for when you want to dry laundry, LOW
TEMP mode is for preventing
condensation or when the room
temperature is low and AIR PURIFIER
mode is for when you want to use only the
air purification function.
¡Selected
mode lamp
lights
AUTO
When you want to dehumidify easily.
¡AUTO lamp lights
Press

7
¡Drying inside
The inside of the unit can be dried to suppress mildew growth on the cooler.
On days the dehumidifier is used, drying inside is recommended.
<Drying inside operation> This operation takes approximately one hour. However, when the room
temperature is below 1°C, drying time is shortened to protect the compressor.
Press while the unit is on Press while the unit is off
To abort drying inside
Press the drying inside button while the unit is
performing internal cleaning (the drying inside
lamp turns off)
The power button does not abort drying inside.
(Normal operation begins.)
∞It is recommended that the louvre be set upright when using drying inside. (Closing the louvre may
produce noise.)
∞Connecting/disconnecting the power plug deactivates automatic operation.
∞This function does not remove existing mildew. Also, aborting drying inside may cause the benefits to
diminish.
∞The moisture expelled from inside the unit may cause the humidity level of the room to rise.
∞The air leaving the unit may appear white depending on the humidity or temperature of the room.
∞The moisture expelled from inside the unit may smell due to odorants that were not caught by the filter
dissolving in the water.
∞The OFF timer cannot be set during drying inside.
Information
OFF
Regular
Regular
operation
operation
Dehumidifier
Air purifier
Drying inside operation (approx. one hour.)
Airflow
Approx.
30min.
Airflow stops; compressor
activates (operating sound)
Compressor operates according
to room temperature
Approx. 20min.
Compressor
stops
Airflow
Approx.
10min.
Unit
stops
auto-
mati-
cally
Operating
sounds
Automatic operation
To activate drying inside after every use.
¡Drying inside standby
(Drying inside lamp lit)
Drying inside starts when operation ends
When the unit is turned off or the OFF timer ends.
¡Drying inside starts
Drying inside lamp flashes.
Power lamp turns off.
Set the louvre upright.
Drying inside mode
¡Drying inside ends
The Drying inside lamp turns off.
Close the louvre.
<To deactivate automatic operation>
Press the Drying inside button while the unit is on
(the Drying inside lamp turns off)
Manual operation
To activate drying inside by pressing a button.
¡Drying inside starts
Drying inside lamp flashes.
Power lamp turns off.
Set the louvre upright.
Drying inside mode
¡Drying inside ends
The Drying inside lamp turns off.
Close the louvre.

8
[OFF Timer Operation]
The OFF timer can be set for each 2, 4, 8 hours.
Set the timer when the power is switched on.
[Removing Water from the Tank]
The unit automatically shuts down and lights the Tank
full lamp when the tank (approximately 4L) is full.
Empty the tank.
1Open the louvre manually
2Switch the power on
3Select operating mode
Select desired operating mode
4Set operating time
➝The OFF Timer is set
¡OFF Timer lamp indicates remaining time
¡Power automatically turns off at set time
If drying inside is set to activate automatically,
drying inside activates.
432
Press
Press
No Display
(Low mode)
¡One press - 2 is
displayed
¡Each consecutive
press displays the
following setting
(2, 4, 8)
To cancel
<When you want to turn the unit off>
Press the Power button.
(Power off)
<When you want to disable the Timer
OFF mode, and continue operation>
Hold down the button
until the OFF Timer lamp
goes out. The unit returns
to Low mode. Press
∞Empty the water tank before operating. The unit
stops and the Tank full lamp lights if the tank
becomes full during operation.
∞The OFF timer cannot be set while drying inside
is operating.
Information
¡If the lid is not properly closed, you may have
problems removing the tank.
¡If the tank is not installed correctly, the tank full
light will come on, and the unit will not operate.
Pour the
water out
as shown.
Confirm that the lid is
securely attached to the
water tank, and push the
tank in. Close the front
door.
Note
Grasp handle and
slide out.
Open the front door.
<Hold the tank this
way>
Do not remove or dismantle the floating element in
the tank. If it is removed, the unit cannot detect
when the tank is full, and this could result in
leakage.
1Remove the water tank.
2Remove the tank lid, and empty.
3Reattach the tank lid and replace
the water tank.
Floating element
Do not remove or
dismantle the float.
Tank lid

9
5. Technical points
5.1 The technical points of the new products
1) Drying inside
During dehumidification, moisture accumulates on the heat exchanger. If left, this can lead to mildew
growth, which is circulated around the room with the air discharge. Drying inside starts automatically after
operation, and dries any moisture inside the unit.
2) Powerful 16-litre/day dehumidifying
The uncomfortable damp feeling caused by humidity is something that needs to be removed quickly.
Mildew can grow and damage the home or clothing when closets, dressing rooms, shoe cabinets, and
other spaces where humidity is prone to collect are not dehumidified. A single high-capacity unit is
effective in dehumidifying and drying various locations throughout the home, quickly moving from one
point to the next.
3) Room humidity and sensible temperature comfortably controlled
The EASY DEHUMIDIFYING mode controls humidity according to room temperature. If the room
temperature rises during dehumidification, use CIRCULATION mode (*1) to lower the sensible
temperature.
*1The automatic dehumidification and blower modes operate alternately controlling the sensible
temperature and humidity to a comfortable level (50%–60%).

10
The dehumidifier does not have a cooler function.
Due to heat produced during operation, the room
temperature may rise 2-4°C As a result, the unit may
blow warm air, but this is not due to a malfunction.
During winter, the air may not feel warm as the
temperature is below body temperature.
The dehumidifier will not operate for 3 minutes
when the unit is turned on immediately after being
turned off or plugged in. (In order to protect the
compressor.)
When dehumidifying begins, the operational noise
increases. This is not a malfunction.
Working temperature
Wait for 3 minutes before dehumidifying
Defrosting
Room temperature may rise 2-4°C during operation
5.2 Operation and Performance
Dehumidification is possible with a room
temperature of 1 – 35°C. If the room temperature
exceeds 35°C, however, the temperature inside the
unit will increase; therefore, the protective device
may activate and halt operation in some cases. For
this reason, the louvres should be aimed upward.
•If the room temperature is lower than 1˚C, there is
danger of the removed water freezing, making
dehumidification impossible, so the fan will start
operating.
The unit may display during operation and stop air
flow, followed by a change in the operating noise. The
unit has stopped the airflow, and is melting internal frost
into the water tank. The unit will resume automatically
when the defrost operation completes.
This operation will be performed automatically when
the room temperature is approximately 15°C or
lower. (When humidity is high, this will occur
approximately once every 40 minutes for 5 – 10
minutes.)
How does the dehumidifier work?
If you pour cold water into a cup, the air around it
becomes cold, causing water droplets to form on
the surface of the cup.
The dehumidifier takes advantage of this
phenomenon to remove moisture from the air.
1The unit draws air from the room, cools it with
its cooling coil, causing the moisture to
transform into water droplets.
2The water droplets fall into the water tank.
3The dehumidified air is reheated by the
heating coil, and then discharged.
The humidity of the room is thus reduced by
repeating steps 1, 2, and 3.
The humidity reading on the unit
may differ from a hygrometer in
the same room
Even in the same room, temperature and
humidity levels may differ from place to place.
If the hygrometer and the unit are in different
parts of the room, the humidity levels are
prone to differ.
Moreover, humidity levels differ between
places that have good and no airflow.
Use the reading on the unit as an estimate.
W
h
y
a
r
e
t
h
e
y
d
i
f
f
e
r
e
n
t
?
CURRENT
<Cause>
●Inconsistencies
in temperature
and humidity
●Difference in
location
●Difference in
hygrometer
precision
Re-heating coil
Cooling coil
Moist air
Compressor
Dried (warm) air
Water tank

11
5.3 Coolant Circuit
Dehumidifying
Defrosting
Coolant flow
Blow
Fan
Heat exchanger (heat radiation)
φ 5
φ 6.35
φ 5
φ6.35
Compressor
Heat exchanger (cooling)
Intake
φ
6.35
Tube temperature
sensing thermistor
φ
6.35
Capillary tube
Capillary tube
φ
2.0 × φ 0.8 × 340
φ 5.0 × φ 4.0
φ 6.35
Humidity
sensor
Room
temperature
sensing thermistor
Solenoid
valve
(closed when
dehumidifying
and open
when
defrosting)
5.4 Performance curve
When the temperature and humidity are low, the amount of water collected is
decreased.
In winter, because the temperature is lower than in summer, the effects of the dehumidifier decrease
dramatically as shown in the graph below.
Although less water collects in the tank, this is not a malfunction.
Summer (humidity) Winter (dampness)
*If the temperature is low, but the humidity is high due to snow or rain, operating the unit in LOW TEMP
mode will yield better results than in LOW mode.
Values for LOW when humidity is 80%.
¡The values shown on the graph were measured at
constant temperature and humidity and do not
reflect values obtained in actual usage conditions.
Room temperature (°C)
Dehumidification capacity (L/day)
0
2
4
6
8
12
14
16
10
5101520
25 30

12
Maintenance
Do not use detergents, cleaning agents for heat exchange equipment, abrasive powders, chemically treated dusters,
gasoline, benzene, thinners or other solvents, as they can damage the unit or the water tank, which may result in leakage.
6. Maintenance
Once every two weeks
1Remove holding
the bottom.
2Remove
holding the
tabs.
1Attach holding the
tabs.
2Hook the top edge
to the top part of
the unit and push
the bottom in.
Hose with lukewarm water when
excessively soiled. Dry well.
The air purifying filter cannot be washed in water.
Replace the air purifying filter when it becomes
dirty.
Face the honeycomb side of
the air purifying filter up and fit
in the inside of the tabs of the
pre-filter.
Front panel
Pre-filter
Honeycomb side
Tabs (6)
Air purifying filter
Pre-filter
Water tank · Main unit
Wipe with
a soft cloth.
Floating element
Do not remove or dismantle.
Do not remove the louvre
front door.
Pre-filter
1Remove the front panel and
pre-filter.
2Remove the air purifying filter.
5
Attach the pre-filter and front
panel.
4Fit the air purifying filter.
3Clean the pre-filter.
Remove grit with
vacuum cleaner.
¡The unit draws in dust present in
the air, and this may cause the
tank to gradually become dirty.
If the dirt does not come off
easily, wash with cold or warm
water, then wipe with a soft, dry
cloth.
¡Mildew may form in the tank
unless kept clean.
If the metal fin inside the main unit is
slightly bent, the unit's performance is not
affected.
Cleaning
Debris clogging the pre-filter reduces the effectiveness of the dehumidifier.
Clean once every 2 weeks.

13
Replacing the Air Purifying Filter
The air purifying filter is disposable.
Make sure to replace the filter when it becomes dirty.
(The filter cannot be washed or reused.)
Storage
Air purifying filter for replacement
∞Type: MJPR-SXFT
∞Type code: 5C5 813
For these items contact your nearest Mitsubishi
Electric dealer.
Parts sold separately
When to replace it
Replace the filter when it becomes dirty
(brownish) with cigarette smoke, dust, etc.
Generally, one filter should last about 6 months.
(This will depend on usage conditions.)
Replacing air purifying
filter
For maintenance procedures see xx
1Remove the front panel and
pre-filter
2Replace air-purifying filter
3Attach air filter and front panel
After switching the unit off, leave for one day until
any water inside has had time to run off, then carry
out the following steps.
1Perform drying inside.
Performing drying inside to prevent mildew
growth is recommended.
2Bundle
power cord.
3Remove the
drainage
water.
Empty the water tank
and wipe away any
remaining drops of
water.
4Clean the
pre-filter.
Remove grit with
vacuum cleaner.
5Store the unit.
¡When you are sure that all parts of the
unit are dry, cover it with a cloth to keep
it from dust.
¡Store the unit in an upright position in a
place not exposed to direct sunlight.
When disposing the unit
Dispose according to the garbage regulations in
your district.
¡Air purifying filter
Material: PP, PET
¡Unit
Do not disassemble. Dispose according to the
garbage regulations in your district.

14
7.2 Function List
Blower
Indicator
Operation off
Off timer
Air purifier
Defrost
Laundry Low temp
One item is
Low
Easy Dehumidifying
Low temp
Easy dehumidifying
Laundry
Air purifier
Off timer
Tank full
Low temperture
Drying inside
Defrost
Low
OFF
OFF
OFF
OFF
OFF
Operation mode
OFF ON
Lo
ON
Hi
ON
ON
ON
ON ONOFF Mi/Lo/
OFF
ON/
OFF
OFF OFF OFF OFF OFF OFF
OFF
OFF
OFF
Tank full
Compressor
Solenoid value
Dehumidifying operation
Drying inside
-
Mi
-
-
= Flashing.= Lit.
= Varies by conditions.
= Can light. = Not lit.
7. Wiring Diagram and Block Diagram
7.1 Wiring Diagram
(1) Current fuse ....................Overcurrent flow caused by deterioration in electrical parts or other problems
turns the power source to OFF.
<Current setting: 2A>
(2) Motor protector................The compressor stops operating if the room temperature exceeds 35°C.
(Overload relay) The compressor will also shut down when malfunctions or other problems
cause the current flow to exceed 5.3A.
(3) Control circuitry ...............The room temperature thermister senses temperature below about 0°C, and
shuts down the compressor.
(4) Thermal fuse ...................When blower motor temperature exceeds 133°C due to blower locking or other
malfunctions, blower operation shuts down.
Safety Devices
P1 P11
P100
P2 P3P5
P4
FM
S
C
R
CM
P200
P10
P13
SV
White
White
Orange Orange
Red Red
Thermistor (Tube
temperature sensing)
1°C (defrost)/12°C (end)
Sensors
(Humidity and room
temperature sensing)
Power supply board
Blue
Brown
Gray
Gray
Gray
Gray
Blue Blue Blue
Black
Gray
White
Red
Yellow
Control board
Tank full switch
Power plug
Run capacitor
Overload relay
Compressor
Solenoid valve
Fan motor

15
<Operation Control>
1Specifications shared at all operation modes
The compressor and blower fan will operate for about 6 minutes after turning on the operation switch or
activating the compressor, regardless of humidity or temperature levels.
2Low, Low Temp, Air Purifier
Low Temp
Low
Air Purifier
ON
ON
Compressor
OFF
Rank 1
Rank 1Rank 6
Rank 2
Rank 1
Rank 5
Rank 5
Rank 1
Rank 2
Rank 1
Rank 1
Rank 1
Fan temperature table
27°C29°C34°C14°C16°C 36°C
Laundry ON Rank 4Rank 3 Rank 5
Rank 4
3Easy Dehumidifier
1. Controls
(a) Adjusts humidity according to room temperature for increased comfort.
(b) CIRCULATION mode is activated when the temperature is high and the humidity is low. This mode keeps the
compressor off.
(c) Switches temperature table every 60 seconds to prevent the blower from turning on and off at the 3-minute restart for
the coloured section in the chart above. (51% – 59%)
(d) When the room temperature is above 29°C (temperature rising) or 27°C (temperature decreasing), CIRCULATE
mode operates with the humidity below 50%.
(e) The unit activates the dehumidifier when the humidity rises above 60%, and returns to CIRCULATE mode when the
humidity drops below 50%.
0
60%
ON
ON
OFF OFF OFF OFF
ON
ON
60% 60%50% 50%
50%
12 3
Current humidity
– Set humidity
20 ° C 27 ° C 34 ° C
+3%
–1%
+5%
+1%
Temperature
Temperature table
Set humidity
Dehumidification
Fan rank
Compressor
Fan rank
Compressor
Fan rank
Compressor
22 ° C 29 ° C 36 ° C
Rank 1
Rank 1
ON
ON
Rank 1
Rank 1
Rank 2
Rank 2
ON
ON
Circulate
To
Dehumidifier
mode
To
Dehumidifier
mode
Rank 4Rank 0Rank 0 Rank 5
To
Circulate
mode
Rank 5
Rank 5
To
Circulate
mode
Dehumidifier mode
Circulate
Dehumidifier modeDehumidifier modeDehumidifier mode
Circulate
set humidity 60% Dehumidifier mode set humidity 50% Circulate set humidity 60%
Set humidity 60% Set humidity 50%
ON
OFF
ON
OFF
50%
60%
Humidity
Compressor
Blower
~20°C~ ~27°C~Temperature
Target part Compressor Airflow fan
Solenoid valve
Louvre
Operation ON/OFF Rank control OFF ON/OFF
2. Easy DEHUMIDIFYING mode is disabled in the following cases.
(a) The MODE button is used to activate the previously set mode (AIR PURIFIER, LOW, AUTO, LAUNDRY, LOW TEMP).
(b) The DRYING INSIDE button is used to activate DRYING INSIDE mode.
Room
temperature
Humidity
Set humidity
60%
Set humidity
50%
When 60% exceeded,
lowers to below 50%
Compressor
OFF
Fan rank 0
Compressor
OFF
Fan rank 0
CIRCULATE mode
60%
50%
20°C 27°C

16
4Drying inside
1. Controls
(a) Prevents the growth of mildew by drying the moisture accumulated on the heat exchanger when the dehumidifier is
OFF.
(b) Drying inside operation does not depend on having a full water level.
(c) The following operations are performed during drying inside operation.
2. Start conditions for drying inside operations
(a) Automatic drying inside mode - This mode starts when the Drying inside button is set to ON, and any of the following
conditions are met.
• The Power button is turned OFF.
• The OFF timer time is reached.
(b) Manual drying inside mode - This mode starts when the Drying inside button is operated while the following condition
is met.
• The Power button is turned OFF.
3. Operating details
(a) The following indications are displayed during DRYING INSIDE operation
• LED indicator: Only Drying inside lamp flashes, others off
(b) Drying inside operates according to the following steps
• Step 1: Moisture is allowed to drip from the heat exchanger.
• Step 2: Moisture on the heat exchanger is dried with air.
• Step 3: Moisture on the heat exchanger is dried with heat.
• Step 4: The heat exchanger is cooled if the temperature rises too high.
• Step 5: Internal humidity is discharged in Step 4.
(c) Step 3 does not perform the tube temperature or room temperature check that accompanies a microprocessor reset,
and jumps directly to Step 5.
(d) Mechanisms operated in the above steps (* are deemed E2PROM data.)
4. Conditions for drying inside operation to end
(a) Upon completion of step 5 above.
(b) The following buttons terminate drying inside operation (during steps 1 to 5 above) when pressed.
• Power button
• Drying inside button
• ON timer button
(c) The following operations are performed when drying inside ends.
5. Drying inside operation is not performed under the following conditions.
(a) The power is ON.
(b) The ON timer is operating.
(c) An error is detected during self-diagnosis.
Target part Compressor Airflow fan Solenoid valve
Operation ON/OFF Rank control OFF
Step Fan Compressor Solenoid valve Conditions for moving to next step
Step 1
Step 2
Step 3
Step 4
Step 5
Rank 1
Rank 1
Rank 0
Rank 0
Rank 1
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
OFF
Operates for 5 min.
Operates for *25 min.
Moves to Step 5 when tube temperature is above 45˚C *
or unit operates for MAX 20 min.
Operates for 20 min including time for Step 3. *
Drying inside stops after operating for 10 min.
Target part Compressor Airflow fan Solenoid valve Louvre
Operation OFF Rank 0 OFF Closed

17
Operation mode
OFF
SH
LO
60%
Tank full/ Power OFF
Hi
Mi
Power
ON
Mode button
ON
AUTO
ON
ON
OFF
Operation switch
Easy
dehumidifying
Easy
dehumidifying
ON
OFF
Compressor
ON
OFF
Float switch
Lo
Blower fan
Tank full Drain Power
OFF
Humidify
Easy dehumidifying/ Mode
max
3 min.
3
sec.
Mi for 2 sec.
at start-up.
min
7 min.
Lo
ON
OFF
Tank full light
Lo
50%
Low temp
Room
temperature
Low temp
Decrease in room
temperature Increase in room
temperature
3
sec.
14
16
When room temperature is
between 20 and 27
7.3. Timing Charts

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Off timer
Defrost count
start
ON
OFF
Timer button
ON
OFF
Compressor
ON
OFF
Solenoid valve
Tube
temperature
Defrost
ON
OFF
Blower fan
40
min.
ON
OFF
Operation switch
After 4 hr.
Defrost
start
Defrost
finish
ON
OFF
Timer lamp
ON
OFF
Mode lamp
After 1 hr. After 2 hr.
Off timer
ON
Off timer
ON
Off timer
ON
4 hr. 2 hr. 2 hr.
12
0

19
Cleaning inside switch 
ON
ON
OFF
Cleaning 
inside lamp
ON
OFF
Compressor
ON
OFF
Solenoid valve
Tube temperature
Cleaning inside (manual)
ON
OFF
Blower fan
ON
OFF
Operation switch
Cleaning 
inside complete
Cleaning 
inside complete
ON
OFF
Cleaning 
inside switch
ON
OFF
Operation 
mode lamp
max 
20 min.
30 min.
60 min.
10 min.
Operation OFF
Start Cleaning inside
Cleaning inside (automatic)
max 
20 min.
Cleaning inside switch 
ON
30 min.
10 min.
60 min.
Tube temperature 
45
Tube temperature 
45
4545

20
7.4 General Block Diagram