Daikin VRV RXYQ72-384XAYCA Service Manual page 235

SiUS342004EB
Error code
Other indoor units abnormality
U9 - 01
Refrigerant type error
UA - 13
Not applicable for self-cleaning decoration panel
UA - 15
[when the self-cleaning decoration panel is mounted]
Incorrect electric heater capacity setting
UA - 17
Connection of excessive indoor units
UA - 18 Connection of wrong models of indoor units
UA - 20 Improper combination of outdoor units
UA - 21 Connection error
UA - 29
Branch selector unit connected
UA - 35 Multi-unit combination error
UF - 01
Wrong wiring check error
UF - 05 Defective stop valve for test operation
Wiring error
UH - 01
Climate Talk Communication system combination error
UH - 05
(before initial setting for communication completes)
Climate Talk Communication system combination error
UH - 06
(after initial setting for communication completes)
3.2.3 Low-Temperature Hydrobox
Regarding the sub error codes and detailed troubleshooting by error codes related to the
low-temperature hydrobox (HXY-TA), refer to the service manual SiUS392016EA.
Part 6 Service Diagnosis
Error Description
Troubleshooting
Refer to the U9 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
The type of refrigerant used for the indoor unit is different
from that used for the outdoor unit.
An outdoor unit is not applicable for the self-cleaning
decoration panel is connected.
Refer to page 347.
Refer to the UA flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
Refer to the UF flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
Refer to the UH flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
Refer to page 355.
Refer to page 356.
Troubleshooting by Error Code
Diagnosis
228