Troubleshooting - Hitachi RAC-18WSC Instruction Manual

TROUBLESHOOTING

FILTER CLEANING OPERATION
Filter cleaning is
performed after the
power is turned on
(after the circuit
breaker is switched
on or after power
failure)
Filter cleaning
operation does not
start
( (CLEAN) indicator
blinks or lit and dim
repeatedly)
Noise occurred
during filter
cleaning operation
Cleaning unit stops
halfway
Micro mesh
stainless filter is
still dirty
• This is for filter cleaning operation check.
• During filter cleaning operation or within 5 minutes after the operation , the filter
cleaning operation will not restart to protect the device.
( (CLEAN) indicator lit for 1 second/off for 1 second, for 10 seconds)
• Is "filter cleaning operation prohibited" being set?
Please return to the filter cleaning operation setting.
( (CLEAN) indicator lit for second/off for 1 second, for 10 seconds)
• Are the micro mesh stainless filter, the dust catcher, the filter cleaning wiper, the
wiper cover correctly installed?
( (CLEAN) indicator lit for 4 seconds/off for 1 second)
• Filter cleaning is not performed if the air conditioner operation is stopped by Sleep
Timer or Off Timer function. However, if the air conditioner is stopped by Sleep Timer
or Off Timer every time, filter cleaning will be performed approximately once a week.
• A whirring motor noise is generated due to driving of the cleaning unit.
• A clapping noise is generated when the dust catcher collects the dust swept by the
cleaning unit.
• A clapping noise is generated when the dust catcher is turned over by the cleaning
unit.
• A sweeping sound is generated when the cleaning unit sweeps the dust.
• After the filter cleaning wiper maintenance, is the cleaning unit return to the right end
part using the remote controller?
• Are the micro mesh stainless filter, the dust catcher, the filter cleaning wiper, the
wiper cover correctly installed?
( (CLEAN) indicator lit for 4 seconds/off for 1 second)
• Filter may not be cleaned evenly depending on the environment in which the air
conditioner is used. To solve this problem, clean the micro mesh stainless filter.
• Depending on dust amount, the micro mesh stainless filter may not be completely
cleaned by manual filter cleaning operation performed at your preferred time while
filter cleaning operation is prohibited.
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