Daikin SUPER MULTI NX G Series Service Manual

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

Daikin SUPER MULTI NX G Series Specifications

General

Brand	Daikin
Model	SUPER MULTI NX G Series
Category	Air Conditioner
Language	English