Daikin VRV EMERION REYQ-AATJA Service Manual page 315

SiUS372201EB
Error code
U3 - 02 Initial installation warning
U3 - 03 Test operation not conducted
U3 - 04 Abnormal end of test operation
Premature end of test operation during initial transmission
U3 - 05
error
Premature end of test operation during normal
U3 - 06
transmission error
Premature end of test operation due to transmission error
U3 - 07
of either unit
Premature end of test operation due to transmission error
U3 - 08
of all units
U4 - 01 Transmission error between indoor units and outdoor units Refer to the U4 flowchart and make a diagnosis of the
U4 - 03
Transmission error between indoor unit and system
U4 - 09 Transmission error between indoor units and outdoor units
U4 - 10 Transmission error between indoor units and outdoor units
U4 - 11 Transmission error between indoor units and outdoor units
U4 - 12 Transmission error between indoor units and outdoor units
U4 - 13 Transmission error between indoor units and outdoor units
U4 - 14 Transmission error between indoor units and outdoor units
Error when external control adaptor for outdoor unit is
U7 - 01
installed
Warning when external control adaptor for outdoor unit is
U7 - 02
installed
U7 - 03 Transmission error between Master and Sub units
U7 - 05 Multi system error
U7 - 06 Error in address settings of Sub unit
Connection of four or more outdoor units in the same
U7 - 07
system
U7 - 11 Error in indoor unit connection capacity for test operation
U7 - 24
Defective Branch Selector unit external control adaptor
Other indoor units abnormality
U9 - 01
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 - 23 Connection of excessive Branch Selector units
Defective connection between outdoor unit and Branch
UA - 25
Selector unit
UA - 26 Defective connection between Branch Selector units
Error of the number of connected Branch Selector and
UA - 27
outdoor units
UA - 28 Wrong Branch Selector unit model connected
UA - 31 Multi-unit combination error
Branch Selector unit DIP switch settings error
UA - 53
(Centralized type)
UF - 01 Wrong wiring check error
UF - 05 Defective stop valve for test operation
Wrong wiring check error for wrong wiring automatic
UF - 18
operation
Wiring error
UH - 01
Part 6 Service Diagnosis
Error Description
Troubleshooting
Refer to the U3 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
relevant unit based on the Error code shown to the left.
Refer to the U7 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
Refer to the U9 flowchart and make a diagnosis of the
relevant unit based on the Error code shown to the left.
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.
Troubleshooting by Error Code
Diagnosis
308