Carrier 38VT 188CTST Series Owner's Manual page 14

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Cleaning the indoor unit and
remote controller
• Ask qualied service person to clean the indoor units
for the models listed in the warning on the top of this
chapter.
• Wipe with a dry, soft cloth.
Do not use acidic or alkaline detergents.
• If heavily stained, wipe off dirt with a cloth soaked in
lukewarm water.
(Do not use water to wipe the remote controller)
• Do not use benzine, thinner, scouring powder,
chemical cloth, etc. as those may cause deformation
or breakage.
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If unused for over a month
• Leave the fan on for half a day or so to dry the
inside.
• Turn off the main power switch.
• Clean the air lter and then attach it.
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Periodic inspection
• After being used for a long period of time, the parts
may deteriorate or malfunction, or the drainage
may worsen, due to heat, moisture, dust, or general
usage.
• In addition to the maintenance, it is recommended
that you have a inspection (charges apply)
performed by the dealer where you purchased the
unit, etc.
CAUTION
• Perform high-pressure cleaning for the heat
exchanger.
If commercially available detergent (strong alkaline
or acid cleaning agent) is used, the surface treatment
of the heat exchanger will deteriorate, which may
degrade the self cleaning performance. For details,
contact our sales department or the dealer where
you purchased the unit.
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Before the cooling season
Ask a qualied service person to clean the drain
pan
CAUTION
Clean the drain pan
Without cleaning, the drain pan may be lled with
waste, and water may overow onto the ceiling or oor.
If you do not plan to use the unit for more
than 1 month
(1) Operate "Fan" mode.
Run the fan for about half a
day to dry the inside fully.
(2) Stop the air conditioner
and turn off the main power
switch.
Checks before operation
(1) Check that the air lters are installed.
(2) Check that the air discharge or intake is not
blocked.
(3) Turn on the main power switch.
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