Daikin VRV Inverter K Series Manual page 169

SI-05C.BOOK Page 155 Monday, November 6, 2000 4:13 PM
SiE-05C
3.32 Malfunction of Transmission Between Indoor and Outdoor Units in the Same
System
U U U U 9 9 9 9
Remote Controller
Display
Supposed Causes
Troubleshooting
Troubleshooting Inverter K Series
Malfunction of transmission within or outside of other system
Malfunction of electronic expansion valve in indoor unit of other system
Defect of PC board of indoor unit in other system
Improper connection of transmission wiring between indoor and outdoor unit
"U9"
YES
has been displayed for 2
minutes or more.
NO
Turn on all indoor units.
NO
The "A1"
display blinks on
YES
the remote controllers of other
units within the same
refrigerant
system.
NO
The "A9"
display blinks on
YES
the remote controllers of other
units within the same
refrigerant
system.
NO
The "U4"
display blinks on
YES
the remote controllers of other
units within the same
refrigerant
system.
NO
Re-diagnose by display after passage
of 2 minutes or more.
Refer to failure diagnosis for "A1"
malfunction code.
Refer to failure diagnosis for "A9"
malfunction code.
Refer to failure diagnosis for "U4"
malfunction code.
Refer to failure diagnosis for "U5"
malfunction code.
: http://splitoff.ru/tehn-doc.html
Troubleshooting
(VF058)
155