Selecting The Remote Control Unit Signal Code; Troubleshooting - Fujitsu AUT Series Operating Manual

SELECTING THE REMOTE CONTROL UNIT SIGNAL CODE

When two or more air conditioners are installed in a room and the remote control unit is operating an air conditioner other
than the one you wish to set, change the signal code of the remote control unit to operate only the air conditioner you wish to
set (four selections possible).
When two or more air conditioners are installed in a room, please contact your retailer to set the individual air conditioner
signal codes.
Selecting the Remote Control Unit Signal Code
Use the following steps to select the signal code of the remote control unit. (Note
that the air conditioner cannot receive a signal code if the air conditioner has not
been set for the signal code.)
1
Press the START/STOP button until only the clock is
displayed on the remote control unit display.
2 Press the MODE button for at least five seconds to dis-
play the current signal code (initially set to ).
3 Press the
tween
air conditioner signal code.
4 Press the MODE button again to return to the clock
display. The signal code will be changed.
If no buttons are pressed within 30 seconds after the signal code is displayed, the system returns to the original clock
display. In this case, start again from step 1.
The air conditioner signal code is set to A prior to shipment. Contact your retailer to change the signal code.
The remote control unit resets to signal code A when the batteries in the remote control unit are replaced. If you use a
signal code other than signal code A, reset the signal code after replacing the batteries.
If you do not know the air conditioner signal code setting, try each of the signal codes (
code which operates the air conditioner.

TROUBLESHOOTING

Instructions relating to heating (*) are applicable only to "HEAT & COOL MODEL" (Reverse Cycle).
WARNING!
Before requesting service, perform the following checks:
NORMAL
Doesn't operate immedi-
FUNCTION
ately:
Noise is heard:
buttons to change the signal code be-
. Match the code on the display to the
In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the
power supply plug or turn off the circuit breaker, and consult authorized service personnel.
Merely turning off the unit's power switch will not completely disconnect the unit from the power
source. Always be sure to disconnect the power supply plug ro turn off your circuit breaker to
ensure that power is completely off.
Symptom
G If the unit is stopped and then immediately started again, the com-
pressor will not operate for about 3 minutes, in order to prevent
fuse blowouts.
G Whenever the power supply plug is disconnected and then recon-
nected to a power outlet, the protection circuit will operate for
about 3 minutes, preventing unit operation during that period.
G During operation and immediately after stopping the unit, the
sound of water flowing in the air conditioner's piping may be
heard. Also, noise may be particularly noticeable for about 2 to 3
minutes after starting operation (sound of coolant flowing).
G During operation, a slight squeaking sound may be heard. This is
the result of minute expansion and contraction of the front cover
due to temperature changes.
*G During Heating operation, a sizzling sound may be heard occa-
sionally. This sound is produced by the Automatic Defrosting
operation.
Problem
) until you find the
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