Daikin VRV EMERION RXYQ-AATJA, Руководство по обслуживанию

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SiUS342303E Troubleshooting by Error Code
Part 6 Service Diagnosis 358
Note(s)

1. Refer to page 361.
NO
YES
Check if
the refrigerant
type of the outdoor unit
corresponds to that of
the indoor unit.
Replace the outdoor unit main
PCB (A1P).
Match the refrigerant types of the
outdoor unit and the indoor unit.
Diagnosis Flowchart-2
Error code Sub code
UA-18
NO
YES
YES
YES
NO
NO
Replace the outdoor unit main
PCB (A1P).
Check for the model of outdoor
unit.
Make setting again, and then
reset the power supply.
Replace the spare PCB.
NO
YES
Replace the outdoor unit main
PCB (A1P).
Diagnosis Flowchart-3
Error code Sub code
UA-20
Multi connection?
NO
YES
YES
The
number of indoor units
connected to the same system
is less than 64.
Incorrect
electric heater
capacity setting
troubleshooting ( 1)
checked?
Replace the outdoor unit main
PCB (A1P).
Replace the outdoor unit main
PCB (A1P).
Refer to Incorrect electric heater
capacity setting troubleshooting.
(
1)
Excess indoor units are
connected. Check for the
connection to connect the proper
number of indoor units.
NO
Diagnosis Flowchart-1
UA-17
Error code Sub code
NO
Is the
model of indoor unit
FXTQ-TA?
YES
Was the
outdoor unit main PCB
replaced with a spare
PCB?
A different model
of outdoor unit is
connected.
Was
proper setting of spare
PCB made?