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14. BEFORE REQUESTING SERVICE
Before requesting service, please check the followings.
Problem Cause Solution
The unit doesn’t work even
when
is pressed on the
remote controller.
The power to the indoor unit is not ON. Make sure the power to the indoor unit is
ON.
Is the Normal/Stop All switch in the Stop
All position? (See Page 6)
Switch it to the Normal position and
cancel operation.
Are the remote controller’s batteries
dead?
Change the batteries.
Is there a mismatch between the display
lamp and cooling/heating or is it set to
something other than Auto?
(The operating lamp stays lit, while the
timer lamp and the standby lamp blink
alternately.)
Change the operating mode.
Do the addresses match one another?
Check the addresses of the receiver
*
1
and the remote controller. (See Page 15)
The air conditioner starts and
stops on its own.
Has the timer been set to repeat? Check the timer settings.
(See Page 11)
“ ” is displayed on the remote
controller when the unit is
stopped.
An error has occurred in the non-volatile
memory.
Please contact your sales outlet.
Although the unit is for air conditioning only, either Auto or Heat is indicated
in the display.
Make settings to the remote controller’s
operation mode display. (See Page 21)
After putting the batteries in the remote control, even when it is operated,
the display does not change.
Press the reset button on the remote
controller. (See Page 7)
The timer cannot be set.
Make the settings when the remote
controller is in Operation Display. (See
Page 11)
If the problem persists even after you check the foregoing items, stop the unit, disconnect the power to the
indoor unit and contact the dealer where the product was purchased with the model number and problem you
are having. As it is dangerous, under no circumstances should you undertake repairs yourself.
Further, when the receiver’s
*
2
lamps are blinking; please contact your retailer with that information.
*
1
CZ-RWSU2U is an operation panel
*
2
CZ-RWSU2U is a display