Troubleshooting SiMT041311E179 Service Diagnosis2.40 Incomplete Setting for Hose LengthError Code UAMethod of ErrorDetectionThis fault occurs when the humidification hose length is not stored in the EEPROMs of theindoor unit and the outdoor unit.(Hose length is not stored at initial power on.)Error DecisionConditionsWhen the humidification hose length is not stored in EEPROMs of the indoor unit and theoutdoor unit.SupposedCauses 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, theset value is erased.)TroubleshootingHow to check the preset hose length(1) Open the cover of the remote controller.(2) Press the SET UP button for 5 seconds.(3) Press the V or W button and select Hose length.(4) Press the APPLY button pointing the transmitter of the remote controller at the indoor unit.(5) The display shows the preset hose length.Note: When the hose length is not set, Hose Unset is displayed.Referring to Humidifying Hose Length Setting on Part 7, set the hose length. To return to the normal mode,∗ press the SET UP button for 5 seconds.∗ close the cover of the remote controller.∗ leave the remote controller for 60 seconds.Set the hose length with theremote controller.To the other UA faultdiagnosis(R19685)CautionCheck the preset hose lengthwith the remote controller.Has the hose lengthbeen set?YESNOBe sure to turn off the power switch before connecting or disconnectingconnectors, or parts may be damaged.
