![background image](http://html.mh-extra.com/html/daikin/4mxl-t-series/4mxl-t-series_service-manual_501130207.webp)
SiUS121827E
Troubleshooting for Outdoor Unit
Part 6 Service Diagnosis
201
Note
7.4 Unspecified Voltage (Between Indoor Unit and Outdoor
Unit), Anti-icing Control 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 control 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 out of specification
Wrong models interconnected
Wrong indoor unit PCB or outdoor unit PCB mounted
Troubleshooting
Refer to Anti-icing control for indoor unit on page 202 for details.
(R21922)
Caution
NO
YES
NO
YES
NO
YES
Check the model combination.
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.
Check the combination of all
connected models.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Содержание 4MXL-T Series
Страница 107: ...SiUS121827E SA Indoor Unit Functions Part 4 Functions and Control 101 FFQ Series Emergency operation switch R24077 ...
Страница 182: ...Troubleshooting for RA Indoor Unit SiUS121827E 176 Part 6 Service Diagnosis Reference Check No 11 Refer to P 235 ...
Страница 190: ...Troubleshooting for SA Indoor Unit SiUS121827E 184 Part 6 Service Diagnosis Reference Check No 02 Refer to P 233 ...
Страница 249: ...SiUS121827E Check Part 6 Service Diagnosis 243 R6000583 1 2 3 4 Multimeter Front side Rear side ...
Страница 288: ...Piping Diagrams SiUS121827E 282 Part 8 Appendix 1 2 Outdoor Unit 5MXS48TVJU 4MXL36TVJU 3D117817 3D118311 ...
Страница 298: ...Operation Limit SiUS121827E 292 Part 8 Appendix 4 Operation Limit 5MXS48TVJU 4MXL36TVJU 3D048149D 3D101428 ...