Daikin FDMR50TVMG, Руководство по обслуживанию

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SiSG121917E Troubleshooting for Outdoor Unit
Part 6 Service Diagnosis 144
Note
7.5 Unspecified Voltage (Between Indoor Unit and Outdoor
Unit)/Anti-icing Function in Other Rooms
Error Code
UA , UH
Outdoor Unit LED
Display
A j 1 h 2 h 3 h 4 h 5 h
Method of Error
Detection
A wrong connection is detected by checking the combination of indoor and outdoor units on the
microcomputer.
Error 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

Power supply voltage is not as specified.
 Wrong models interconnected
 Wrong indoor unit PCB or outdoor unit PCB mounted
Troubleshooting
Refer to Anti-icing control for indoor unit on page 145 for details.
(R18424)
Caution
NO
YES
NO
YES
NO
YES
Check the model combination.
Check the combination of all the
models being connected.
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.
Error displayed while
operating?
Power supply voltage
as specified?
Matched compatibly?