Hitachi RAK-18NH6AS Service Manual page 32

CAUTION
!
Cleaning and maintenance must be carried out only by qualifi ed service personal. Before cleaning,
stop operation and switch off the power supply.
3. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD
Running the unit setting the operation mode to
●
(FAN) and the fan speed to HI for about half a day
on a fi ne day, and dry the whole of the unit.
Switch off the power plug.
●
REGULAR INSPECTION
PLEASE CHECK THE FOLLOWING POINTS BY QUALIFIED SERVICE PERSONAL EITHER
EVERY HALF YEARLY OR YEARLY. CONTACT YOUR SALES AGENT OR SERVICE
SHOP.
1
2
3
Confirm
Is the earth line disconnected or broken?
Is the mounting frame seriously affected by rust and is the
outdoor unit tilted or unstable?
Is the plug of power line fi rmly plugged into the socket?
(Please ensure no loose contact between them).
– 31 –
Air
Blow