Unspecified Voltage (Between Indoor Unit And Outdoor Unit) / Anti-Icing Function In Other Rooms - Daikin SUPER MULTI NX CTXS07JVJU Service Manual

Super multi nx g-series / j-series
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SiUS12-928_B
6.4
Unspecified Voltage (between Indoor Unit and Outdoor
Unit) / Anti-icing Function in Other Rooms
UA, UH
Remote
Controller
Display
Outdoor Unit LED
A
5
Display
Method of
A wrong connection is detected by checking the combination of indoor and outdoor units on the
Malfunction
microcomputer.
Detection
 Anti-icing function in other rooms
Malfunction
 Unspecified internal and/or external voltages
Decision
 Mismatching of indoor and outdoor units
Conditions
 Anti-icing function in other rooms
Supposed
 Wrong models interconnected
Causes
 Wrong indoor unit PCB or outdoor unit PCB mounted
Troubleshooting
Note:
Refer to "Anti-icing function" on page 163 for detail.
Service Diagnosis
1
3
2
3
3
3
4
3
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Error displayed while
operating?
YES
Power
supply voltage as
specified?
YES
Check the model combination.
Matched compatibly?
YES
Check the combination of all
connected models.
NO
NO
NO
Troubleshooting for Outdoor Unit
The anti-icing function is
activated in other rooms.
Refer to A5.
Correct the power supply
voltage.
Match the compatible models.
(R15723)
162

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