2007.03.07
14
ERROR CONTENTS
INDOOR UNIT
Make a TEST RUN in accordance with the
installation instruction sheet for the indoor unit.
OUTDOOR UNIT LEDS
When a malfunction occurs in the outdoor unit,
the LED on the circuit board lights to indicate the error.
Refer to the following table for the description of each
error according to the LED.
Error contents
Communication error
(Indoor unit - Outdoor unit)
Discharg pipe temperature sensor
Outdoor heat exchanger temperature (outlet) sensor
Outdoor heat exchanger temperature (mid) sensor
Outdoor temperature sensor
Compressor temperature sensor
Heat sink temperature sensor
Pressure switch abnormal
IPM error
Compressor rotor position cannot detect
Compressor cannot operate
Outdoor fan abnormal (upper fan)
Outdoor fan abnormal (lower fan)
Pump down operation
No error
LED
1 flash
2 flash
3 flash
4 flash
5 flash
Discharge pipe temperature abnormal
6 flash
7 flash
8 flash
9 flash
Compressor temperature abnormal
10 flash
12 flash
13 flash
14 flash
15 flash
16 flash
1 sec. on/
1 sec. off
repeat
Protect operation
5 sec. on/
1 sec. off
repeat
off
: 0.5s ON/0.5s OFF (Flash)
: OFF
(Troubleshooting with the indoor display)
Troubleshooting at the display is possible either on the wired or wireless
remote control.
The OPERATION, TIMER and FILTER lamp operate as follows table ac-
cording to the error contents.
FILTER lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
Indoor signal error
Wired remote controller abnormal
Indoor room temperature sensor error
Indoor heat exchanger temperature
sensor (middle) error
Indoor heat exchanger temperature
sensor (inlet) error
Float switch operated
Outdoor discharge pipe temperature
sensor error
Outdoor heat exchanger temperature
sensor (outlet) error
Outdoor temperature sensor error
Heatsink thermistor error
Compressor temperature sensor error
2-way valve temperature sensor error
3-way valve temperature sensor error
Outdoor heat exchanger temperature
sensor (middle) error
Indoor manual auto switch abnormal
Power supply frequency detection
error
IPM protection
CT error
Compressor location error
Outdoor fan error
Connected indoor unit abnormal
Outdoor unit computer communication
error
Indoor fan abnormal
Discharge temperature error
Excessive high pressure protection on
cooling
4-way valve abnormal
Pressure switch abnormal
Compressor temperature error
Active filter abnormal
PFC circuit error
Error contents
OPERATION
lamp (RED)
(2 times)
(2 times)
(2 times)
(2 times)
(3 times)
(3 times)
(3 times)
(3 times)
(3 times)
(3 times)
(3 times)
(3 times)
(4 times)
(4 times)
(5 times)
(5 times)
(5 times)
(5 times)
(5 times)
(5 times)
(6 times)
(7 times)
(7 times)
(7 times)
(7 times)
(7 times)
(8 times)
(8 times)
TIMER lamp
(GREEN)
(8 times)
(2 times)
(3 times)
(4 times)
(6 times)
(2 times)
(3 times)
(4 times)
(7 times)
(8 times)
(2 times)
(4 times)
(2 times)
(3 times)
(5 times)
(6 times)
(7 times)
(8 times)
(2 or 3 times)
(2 times)
(3 times)
(4 times)
(5 times)
(6 times)
(2 or 3 times)
(4 times)
FILTER lamp
(ORANGE)
(2 times)
(3 times)
(4 times)