Daikin RXYQ96PYDN Service Manual page 394

SiUS34-801A_b
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Check the current sensor corresponding to the malfunction
J2
code " " in the monitor mode.
(Refer to P334~335 for how to check)
Check 4 shows as follows:
→ Current sensor for constant rate compressor 1
Check 4 shows as follows:
→ Current sensor for constant rate compressor 2
Explanation for " "
Is the
connector for
current sensor
connected to X25A, X26A
on outdoor unit
PC board
(A1P)?
Are the
current sensors inversely
connected to two STD
compressors?
Applicable
compressor coil wire is
broken.
Is the
current sensor
mounted on the T-phase
(A6P) and R-phase
(A8P) wire?
Troubleshooting by Indication on the Remote Controller
Master unit
Slave unit 1
Slave unit 2
System
NO
YES
YES
NO
YES
NO
NO
YES
Connect the connector, and
operate unit again.
Correct the connections between
the current sensors and the STD
compressors.
Replace compressor.
Mount the current sensor
correctly, and operate unit again.
Replace current sensor or outdoor
unit PC board.
(V3071)
379