Error display
Wired
remote
controller
Error code
Description
OPERATION
lamp (green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
(1)
(1)
Serial communication error
(1)
(2)
Wired remote controller
communication error
(1)
(5)
Check run un nished
(1)
(6)
Peripheral unit transmission PCB
connection error
(1)
(8)
External communication error
(2)
(1)
Unit number or Refrigerant circuit
address setting error
[Simultaneous Multi]
(2)
(2)
Indoor unit capacity error
(2)
(3)
Combination error
(2)
(4)
•
Connection unit number
error (indoor secondary unit)
[Simultaneous Multi]
•
Connection unit number error
(indoor unit or branch unit)
[Flexible Multi]
(2)
(6)
Indoor unit address setting error
(2)
(7)
Primary unit, secondary unit setup
error [Simultaneous Multi]
(2)
(9)
Connection unit number error in
wired remote controller system
(3)
(1)
Power supply interruption error
(3)
(2)
Indoor unit PCB model
information error
(3)
(5)
Manual auto switch error
(3)
(10)
Indoor unit communication circuit
(wired remote controller) error
(4)
(1)
Room temp. sensor error
(4)
(2)
Indoor unit Heat Ex. Middle temp.
sensor error
(4)
(4)
Human sensor error
(5)
(1)
Indoor unit fan motor error
(5)
(3)
Drain pump error
(5)
(7)
Damper error
(5)
(15)
Indoor unit error
2015.11.20
9
(6)
(1)
Outdoor unit reverse/missing
phase and wiring error
(6)
(2)
Outdoor unit main PCB
model information error or
communication error
(6)
(3)
Inverter error
(6)
(4)
Active lter error, PFC circuit error
(6)
(5)
Trip terminal L error
(6)
(8)
Outdoor unit rush current limiting
resister temp. rise error
(6)
(10)
Display PCB microcomputers
communication error
(7)
(1)
Discharge temp. sensor error
(7)
(2)
Compressor temp. sensor error
(7)
(3)
Outdoor unit Heat Ex. liquid temp.
sensor error
(7)
(4)
Outdoor temp. sensor error
Error display
Wired
remote
control
Error code
Description
OPERATION
lamp (green)
TIMER
lamp
(orange)
ECONOMY
lamp
(green)
(7)
(5)
Suction Gas temp. sensor error
(7)
(6)
•
2-way valve temp. sensor error
•
3-way valve temp. sensor error
(7)
(7)
Heat sink temp. sensor error
(8)
(2)
•
Sub-cool Heat Ex. gas inlet
temp. sensor error
•
Sub-cool Heat Ex. gas outlet
temp. sensor error
(8)
(3)
Liquid pipe temp. sensor error
(8)
(4)
Current sensor error
(8)
(6)
•
Discharge pressure sensor error
•
Suction pressure sensor error
•
High pressure switch error
(9)
(4)
Trip detection
(9)
(5)
Compressor rotor position
detection error (permanent stop)
(9)
(7)
Outdoor unit fan motor 1 error
(9)
(8)
Outdoor unit fan motor 2 error
(9)
(9)
4-way valve error
(9)
(10)
Coil (expansion valve) error
(10)
(1)
Discharge temp. error
(10)
(3)
Compressor temp. error
(10)
(4)
High pressure error
(10)
(5)
Low pressure error
(13)
(2)
Branch boxes error
[Flexible Multi]
Display mode
: 0.5s ON / 0.5s OFF
: 0.1s ON / 0.1s OFF
( ) : Number of flashing
If you use a wired type remote control,
error codes will apear on the remote control display.
When you use a wireless remote control,
the lamps on the IR receiver unit will output error codes
by way of blinking patterns.
See the lamp blinking patterns and error codes in the table.
An error display is displayed only during running.
UTY-RNRYZ1
Double-digit error code means the error for
the indoor unit or outdoor unit.
