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TROUBLESHOOTING WHEN THE TIMER and DEHUMIDIFYING LAMP BLINKS
MODEL RAS-32CNH1
Fan Motor Set Wind Volocity and DC Voltage (between blue and red)
Perform troubleshooting according to the number of times the timer lamp on the display of the indoor unit blinks.
characteristics.
MODEL
RAS-32CNH1
n speed
——E
iy oe
=
oe
join
|
map
When the indoor heat exchanger
(2) Heat exchanger thermistor
Rotation speed (min)
Connector blue-red voltage (V)
temperature is too low in the heating
disconnected
mode or it is too high in the cooling
(only in the heating mode).
mode.
(Note)
The malfunction mode is entered the 3rd
time this abnormal indication
appears(read every 3 minutes).
OVER
LOAD
Outdoor
unit forced operation
When the outdoor unit is in forced
operation or balancing operation
after forced operation
ind
ivoutd
it intert
defective
When the interface signal from the
outdoor unit is interruppted.
Over-current
detection at the DC fan
motor
When over-current is detected st the DC
fan motor of the indoor unit.
1C401 data
reading error
When data read from |C401 is incorrect.
Electrica! parts in the outdoor unit
SUPER
Hihi
LO
Ss
MED
Lo
Hi
Hi
LO
S
ED
Lo
Hi
Hi
O
S
Indoor
fan
speed
(1) Indoor unit interface circuit
(2) Outdoor unit interface circuit
M
=
(1) Indoor unit fan lock
(2) indoor unit fan motor
(3) indoor unit contro! P.W.B.
Dehumidifying
---
10 time
1C401 abnormal
Perform troubleshooting according to the number of times the dehumidifying lamp on the display of the indoor unit blinks.
Ne inking mode of Dir amp
Peak current cut
Check the outdoor unit referring to the
2 time
lighting mode table of the self-diagnosis
5 se
;
Abnormal low rotation speed
meme
i a i
i --cnn---
3 time
5 sec
:
Switching failure
| i i i
| TS2e3
4 time
---
5time
---
7 time
5 se
.
Acceleration defective
---
8time
5 se
Abnormality in reading outdoor unit
---
13 time | EEPROM data. When the data read from
the outdoor unit EEPROM is wrong.
5 se
i
cian oie
5 seq
:
Acceleration defective
---
15 time
ci- -lights for 0.5 s at 0.5 s intervals)
<Cautions>
(1) If the interface circuit is faulty when power is supplied, self-diagnosis will not be displayed.
;
(2) When the indoor unit is in the above self-diagnosis modes, the self-diagnosis indicator on the outdoor unit will blink nine time
(except for mode marked 2X1 or when connected to the branch unit).
3) if the indoor unit does not operate at all, check to see if the F-cable is reversely connected or disconnected.
.
4) To check operation is meal when the timer or dehumidifying lamp is blinking, you can use the remote control for operation
— 169 —
(except for mode marked 3X2).
F.
o
2
1
'
i] t
' 1 1
i
'
Outdoor unit EEPROM
a
*1
HITA-02976 / Druck:22
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