Care And Cleaning; Cleaning The Filters And The Indoor Unit - Mitsubishi Electric PLH18 Operation Manual

3. Care and cleaning

PLH/PL Series
B
A
PCH/PC Series
PKH/PK Series
B
ON/OFF –
CENTRALLY CONTROLLED SWING ˚F
AUTO FAN DRY COOL CHECK SET TEMP. TIMER OFF TIMER CLOCK AUTO AUTO START STOP FAN SPEED AUTO FILTER
HEAT RETURN CHECK MODE
STAND BY DEFROST ˚F NOT AVAILABLE TEST RUN
• Always turn off the power, first on the remote controller and then the main
switch, before cleaning or servicing the unit.
• When installing or removing the filter or the intake grille, do not stand on an
unsteady surface. You may fall and injure yourself. Be also careful not to let
dust fall into your eyes.
Dirty or clogged filters block the airflow and reduce efficiency. Very dirty filters can
damage the air-conditioner itself.
PLH/PL Series
C
Intake grille removal
• Pull the knob on the intake grille in the direction indicated by the arrow and it
should open.
• Unhook the hinges to remove the intake grille from the grille.
Filter removal
D
• Open the intake grille.
• Release the knob on the center edge of the intake grille and pull the filter forward
to remove the filter.
A Knob
PCH/PC Series
Intake grille removal
• Pull handle on intake grille in direction of arrow to open grille.
Filter removal
• Hold filter handle and release from catch on grille, and pull out the small filter as
well.
A Handle
PKH/PK Series
• Hold the filter lug (located at the bottom of the intake grill) and pull it out downward.
• To install the filters, push the filter lug upward.
A Filter
A

3.1. Cleaning the filters and the indoor unit

Cleaning the filters
• Clean the filters using a vacuum cleaner. If you do not have a vacuum cleaner, tap
the filters against a solid object to knock off dirt and dust.
• If the filters are especially dirty, wash them in lukewarm water. Take care to rinse
off any detergent thoroughly and allow the filters to dry completely before putting
them back into the unit.
Caution:
• Do not dry the filters in direct sunlight or by using a heat source, such as an
electric heater: this may warp them.
• Do not wash the filters in hot water (above 120°F), as this may warp them.
• Make sure that the air filters are always installed. Operating the unit without
air filters can cause malfunction.
Cleaning the indoor unit
• Wipe the outside of the unit with a clean, dry, soft cloth.
• Clean off any oil stains or finger marks using a neutral household detergent (such
as dishwashing liquid or laundry detergent).
Caution:
Never use gasoline, benzene, thinner, scouring powder or any type of non-
neutral detergent, as these substances may damage the unit's case.
Caution:
B Grille C Intake grille
B Intake grille C Handle
B Lug
D Filter
D Filter E Small filter
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