Hitachi RAC-18SX8 Service Manual page 177

Cleaner
After power-on (after turning ON the
Q1
power switch, after a power failure,
after the breaker is turned on), the
product will begin cleaning its filter.
The product will not clean its filter.
Q2
The clean lamp will blink or repeat
going on and dimming.
Q3
Noise will occur while the filter is
being cleaned.
・For an operation check on filter cleaning, the
A1
cleaner will make one go and return. At that time,
the "clean" lamp will go on.
・The one-time operation check will last about 7
minutes.
・During an operation check, the product will supply
wind, with the movable panels and vertical vane
remaining closed.
・If the front panel is not correctly closed, for the
A2
sake of safety, filter cleaning will not start. (The
"clean lamp" will go on for 1 second and go
dimmed for 1 second.)
・Pressing the "manual cleaning" button on the
remote control unit while the air-conditioner is in
basic mode (such as cooling) will not activate filter
cleaning. (The "clean lamp" will go on for 1
second and off for 1 second, for a total of 10
seconds.)
・During or after filter cleaning, the product will
remain inoperative for about 5 minutes to protect
the machine even if you press the "manual
cleaning" button on the remote control unit. (The
"clean lamp" will go on for 1 second and off for 1
second for a total of 10 seconds.)
・Is the product set to disable filter cleaning? Set it
back to a setting to enable filter cleaning. (The
"clean lamp" will go on for 1 second and off for 1
second for a total of 10 seconds.)
・Are the micro-mesh, stainless steel filter, dust
catcher, filter cleaning wiper, and wiper cover
correctly installed? (The "clean lamp" will go on
for 4 seconds and off for 1 second.)
・If you have stopped the air-conditioner by the
sleep timer or OFF timer, filter cleaning will not
occur. However, if you have stopped the air-
conditioner with the sleep timer or OFF timer
every time, then filter operation will occur once a
week or so.
・The motor will make a noise, going "weeen" to
A3
drive the cleaner.
・When the cleaner collects dust or dirt collected on
the going-forward direction, the product will go
"snap" or "flap."
・When the cleaner reverses the dust catcher on its
way back, it makes a noise, going "snap" or "flap."
・When the cleaner collects dust and dirt, it may
make a noise, going "chitty-chitty."
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