Turning On The Power; Error Code Display - Fujitsu UTB-*WB series Installation Manual

8. TURNING ON THE POWER

CAUTION
• Before turning on the power, check that the voltage is
within the rated range. If operated outside the rated
range, erroneous operation cannot be prevented and
cannot be compensated.
(1) Turn on the circuit breakers for the indoor unit and outdoor
unit.
(2) Make sure that the operation lamp and timer lamp are
slowly flashing alternately.
• If the auto restart function has been set, the air
conditioner will operate with the settings immediately
before the power supply was turned off.
• If an error has occurred, the lamps on the receiver unit
will flash quickly to indicate the error code.

9. ERROR CODE DISPLAY

Error display
OPERATION TIMER FILTER
LAMP LAMP SIGN LAMP
- - -
(1) (2)
(1) (3)
(1) (4)
(1) (5)
(1) (6)
(2) (1)
(2) (6)
(2) (8)
(3) (1)
(3) (2)
(3) (5)
(3) (7)
(3) (8)
(4) (1)
(4) (2)
(5) (1)
(9) (15)
Display Method : 0.1 sec. ON / 0.1 sec. OFF flashing
: 0.5 sec. ON / 0.5 sec. OFF flashing
( ) : Flashing times
OPERATING LAMP and TIMER LAMP will blink alternately.
Error content
No error
Remote controller
communication error
Communication error
between Outdoor unit
Network communication
error
Scan error
Peripheral device
communication error
Initial setting error
Address setting error
Other setting error
Indoor unit power supply
abnormal
Indoor unit main PCB error
Manual auto switch error
Indoor unit transmission
PCB error
Network convertor PCB
error
Room temp. sensor error
Indoor unit Heat Ex. sensor
error
Indoor unit fan motor error
Outdoor unit error
En-7