Daikin VRV RXYMQ-A Series Service Manual page 165

SiME332106E
Error code
Error when external control adaptor for outdoor unit is
U7 - 01
installed
Alarm when external control adaptor for outdoor unit is
U7 - 02
installed
Error in indoor unit connection capacity for test
U7 - 11
operation
Other indoor units and outdoor unit abnormality
U9 - 01
TSS plus unit field settings error, CT
UA - 00
address duplication warning
UA - 03 Connection of excessive indoor units
UA - 17 Connection of excess indoor units
UA - 18 Connection of incorrect models of indoor units
UA - 20 Improper combination of outdoor units
UA - 21 Wrong connection
UF - 01 Wrong wiring check error
UF - 05 Defective stop valve for test operation
UH - 01 Wiring error
Part 6 Service Diagnosis
Description of error
Troubleshooting
Refer to the U7 flowchart and make a diagnosis based
on the Error code shown to the left.
Refer to the U9 flowchart and make a diagnosis based
on the Error code shown to the left.
Refer to the UA flowchart and make a diagnosis based
on the Error code shown to the left.
Refer to the UF flowchart and make a diagnosis based
on the Error code shown to the left.
Refer to the UH flowchart.
Troubleshooting by Error Code
Diagnosis
159