Specifications

Troubleshooting SiBE04-624_B
106 Service Diagnosis
2.21 Incomplete Setting for Hose Length
Error Code
UA
Method of Error
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.)
Error 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 and the outdoor unit PCB.
(When both the indoor unit PCB and the outdoor unit PCB are replaced simultaneously, the
set value is erased.)
Troubleshooting
How to check the preset hose length
(R13921)
Caution
Check the preset hose length
with the remote controller.
Has the hose length
been set?
YES
NO
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Set the hose length with the
remote controller.
To other "UA" fault
diagnosis
1) Press the [CLOCK] button for 5 seconds.
→
is displayed.
2) Press the [SELECT]

or

button and select .
3) Press the [CLOCK] button to activate the hose length setting mode.
→
The display shows the preset hose length.
When the hose length is not set, is displayed.
4) Press the [SELECT]

or

button and select hose length.
You can select hose length from [~ 3 m] [3.1 ~ 4 m] [4.1 ~ 6 m] [6.1 ~ 8 m] [8.1 ~ 10 m].
5) Press the [CLOCK] button to set the hose length.
6) To return to the normal mode, press the [CLOCK] button for 5 seconds or leave the remote
controller for 60 seconds.