Hitachi RAS-25CNH2 Service Manual page 21

3. MAINTENANCE AT BEGINNING OF LONG OFF PERIOD
Running the unit setting the operation mode to
G
(COOL), the temperature to 32°C and the fan speed
to HI for about half a day on a fine day, and dry the
whole of the unit.
Disconnect the power plug.
G
REGULAR INSPECTION
PLEASE CHECK THE FOLLOWING POINTS EVERY EITHER HALF YEARLY OR YEARLY.
CONTACT YOUR SALES AGENT SHOULD YOU NEED ANY HELP.
1
Confirm
2
3
Is the plug of power line firmly plugged into the socket?
(Please ensure no loose contact between them).
Is the earth line disconnected or broken?
Is the mounting frame seriously affected by rust and is the
outdoor unit tilted or unstable?
– 20 –
Air
Blow