En-19
The OPERATION, TIMER and FILTER Lamp operate as fol-
lows table according to the error contents.
OPERATION
Lamp
TIMER
Lamp
FILTER
Lamp
Error contents
×
(2 times)
○
×
Indoor signal error
×
(3 times)
○
×
×
(4 times)
○
×
×
(5 times)
○
×
×
(8 times)
○
×
Wired remote controller abnormal
(2 times)
○
(2 times)
○
×
Indoor room temperature sensor error
(2 times)
○
(3 times)
○
×
Indoor heat exchanger tempera-
ture sensor (middle) error
(2 times)
○
(4 times)
○
×
Indoor heat exchanger tempera-
ture sensor (inlet) error
(2 times)
○
(6 times)
○
×
Float switch operated
(3 times)
○
(2 times)
○
×
Outdoor discharge pipe tempera-
ture sensor error
(3 times)
○
(3 times)
○
×
Outdoor heat exchanger temperature
sensor (outlet) error
(3 times)
○
(4 times)
○
×
Outdoor temperature sensor error
(3 times)
○
(7 times)
○
×
Heat sink thermistor (Inverter) error
(3 times)
○
(8 times)
○
×
Compressor temperature sensor error
(3 times)
○
×
(2 times)
○
2-way valve temperature sensor error
(3 times)
○
×
(3 times)
○
3-way valve temperature sensor error
(3 times)
○
×
(4 times)
○
Outdoor heat exchanger temperature
sensor (middle) error
(3 times)
○
×
(5 times)
○
Heat sink thermistor P.F.C. error
(4 times)
○
(2 times)
○
×
Indoor manual auto switch abnormal
(4 times)
○
(4 times)
○
×
Power supply frequency detection error
(5 times)
○
(2 times)
○
×
IPM protection
(5 times)
○
(3 times)
○
×
CT error
(5 times)
○
(5 times)
○
×
Compressor location error
(5 times)
○
(6 times)
○
×
Outdoor fan error
(5 times)
○
(7 times)
○
×
Connected indoor unit abnormal
(5 times)
○
(8 times)
○
×
Outdoor unit computer communi-
cation error
(5 times)
○
×
(2 times)
○
Inverter error
(6 times)
○
(2 or 3 times)
○
×
Indoor fan abnormal
(7 times)
○
(2 times)
○
×
Discharge temperature error
(7 times)
○
(3 times)
○
×
Excessive high pressure protec-
tion on cooling
(7 times)
○
(4 times)
○
×
4-way valve abnormal
(7 times)
○
(5 times)
○
×
Pressure switch abnormal
, Pres-
sure sensor abnormal
(7 times)
○
(6 times)
○
×
Compressor temperature error
(7 times)
○
(7 times)
○
×
Low pressure error
(8 times)
○
(2 or 3 times)
○
×
Active
fi
lter abnormal
(8 times)
○
(4 times)
○
×
P.F.C. circuit error
(8 times)
○
(6 times)
○
×
P.F.C. printed circuit board error
(9 times)
○
(2 times)
○
×
Refrigerant circuit address set-up error
(9 times)
○
(3 times)
○
×
Master unit, Slave unit set-up error
(9 times)
○
(4 times)
○
×
Connected the indoor number set-up error
○
:0.5s ON/0.5s OFF (Flash)
×
:OFF
11. CHECK LIST
Pay special attention to the check items below when install-
ing the indoor unit(s). After installation is complete, be sure to
check the following check items again.
CHECK ITEMS
If not performed
correctly
CHECK
BOX
Has the indoor unit
been installed correctly?
Vibration, noise, indoor
unit may drop
Has there been a check
for gas leaks (refriger-
ant pipes)?
No cooling, No heating
Has heat insulation
work been completed?
Water leakage
Does water drain easily
from the indoor units?
Water leakage
Are the wires and pipes
all connected com-
pletely?
No operation, heat or
burn damage
Is the connection cable
the speci
fi
ed thickness?
No operation, heat or
burn damage
Are the inlets and
outlets free of any
obstacles?
No cooling, No heating
After installation is com-
pleted, has the proper
operation and handling
been explained to the
user?
12. ERROR CODES
If you use a wired type remote control, error codes will appear
on the remote control display. If you use a wireless remote
control, the lamp on the photo detector unit will output error
codes by way of blinking patterns. See the lamp blinking pat-
terns and error codes in the table below.
Troubleshooting
[Troubleshooting with the indoor display]
Troubleshooting at the display is possible either on the wired
or wireless remote control.
FILTER Lamp
(RED)
TIMER Lamp
(ORANGE)
OPERATION Lamp
(GREEN)
MANUAL AUTO
