Daikin 2MXU40GV1B User Manual

SiBE12-908 Troubleshooting
Service Diagnosis 130
2.14 Incomplete Setting for Hose Length
Remote
Controller Display
UA
Method of
Malfunction
Detection
This fault occurs when the humidification hose length is not stored in the EEPROMs of the
indoor unit and the outdoor unit.
(Hose length is not stored at initial power on.)
Malfunction
Decision
Conditions

When the humidification hose length is not stored in EEPROMs of the indoor unit and the
outdoor unit.
Supposed
Causes
Hose length is not set.
Hose length is erased by replacement of the indoor unit PCB or the outdoor unit PCB. (When
both the indoor unit and the outdoor unit PCBs are replaced simultaneously, the set value is
erased.)
Troubleshooting
How to check the preset hose length
(R9423)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Has the hose length
been set?
Check the preset hose length
with the remote controller
Set the hose length with the
remote controller.
YES
NO
To other "
UA
" fault diagnosis
1) Press the 3 buttons (TEMP
▲
,
▼
, MODE) simultaneously.
5C
is displayed. (A)
2) Press the TEMP
▲
or
▼
button and select
PC
. (B)
3) Press the MODE button to enter the pipe check mode. (C)
4) Press the TEMP
▲
or
▼
button to change the display of the hose length.
(D)
5) Long beep sound means that the display shows the preset hose length.
If you hear the long beep when the display is (E), the hose length is not set.
A
B
C
D
(Set point;
long beep)
E

Daikin 2MXU40GV1B Specifications

General

Brand	Daikin
Model	2MXU40GV1B
Category	Heat Pump
Language	English