SiBE04-624 Troubleshooting
Service Diagnosis 163
2.16 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
Set hose length by using
the remote controller.
To other "UA" fault
diagnosis
(R3418)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Diagnosis by using the remote
controller
Before
UA is displayed, does
"PIPE LEN UNDEF"
appear?
NO
YES
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