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(MODEL RAS-25QH1, RAS-32QH1)
TROUBLESHOOTING WHEN THE TIMER and DEHUMIDIFYING LAMP BLINKS
Perform troubleshooting according to the number of times the timer lamp on the display of the indoor unit
blinks.
Reversing valve defective
_ _ | (1) Reversing valve defective
When the indoor heat exchanger
(2) Heat exchanger thermistor
See
temperature is too low in the heating
disconnected
Bere
eee ee ee
.
mode or it is too high in the cooling
(only in the heating mode).
]
: i
|
Tune
mode.
(Note)
The malfunction mode is entered the 3rd
time this abnormal indication
appears(read every 3 minutes).
|
Outdoor unit forced operation
Electrical parts in the outdoor unit
P| : "y
;
When the outdoor unit is in forced
2'|
@@
£=x@---------
2 times
;
,
operation or balancing
operation after forced operation.
Indoor unit/outdoor unit interface
(1) Indoor unit interface circuit
3|
EEE
_____--
Bigratc
defective
(2) Outdoor unit interface circuit
When the interface signal from the
outdoor unit is interruppted.
Over—current detection at the DC fan
(1) Indoor unit fan lock
motor
(2) Indoor unit fan motor
When over-—current is detected at the DC | (3) Indoor unit control P.W.B.
fan motor of the indoor unit.
1C401 data reading error
When data read from !C401 is incorrect.
5 se
| i
| a
z ---
10 times
5 sec
a
aa
il ---
13 times
1C401 abnormal
( ie - lights for 0.5 sec. at intervals of 0.5 sec.)
Perform troubleshooting according to the number of times the dehumidifying lamp on the display of the
indoor unit blinks.
[No,
Blinking mode of Dehumidifying lamp
Reason of indication
Possible cause
5 se
f
Peak current cut
Check the outdoor unit referring to the
1
|
y re
2umes
lighting mode table of the self-diagnosis
:
lamp.
5 se
Abnormal low rotation speed
2
i | il
) cura teen 3 times
5 se
Switching failure
| 3
i a | i
i Sietesteahal 4 times
4
7 a E g : "'
Over-—joad lower limit cut
---
5times
5 se
OH/FIN thermistor temperature rises
---
6times
i |
a : |
Outdoor thermistor abnormal
6
---
7 times
5 se
Acceleration defective
7
---
8 times
5 seq
Outdoor E2PROM abnormal
8
a
iil
Bj ---
13 times
—
on
( J - - lights for 0.5 sec. at intervals of 0.5 sec.)
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