5
5
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1. Contents of Remote Controller
Switch Alarm Display
W-2WAY ECO-i SYSTEM
Trouble Diagnosis
ON:
Blinking:
OFF:
Possible cause of malfunction
Wired
remote
control
display
Wireless
remote controller
receiver display
Operation
Timer
Standb
y
for heating
Thermistor fault Outdoor unit
Compressor 1 (INV) discharge temp. sensor
F04
Compressor 2 (constant speed) discharge temp. sensor
F05
Compressor 3 (constant speed) discharge temp. sensor
F22
Outdoor air temp. sensor
F08
Heat exchanger 1 liquid temp. sensor
F07
Heat exchanger 1 gas temp. sensor
F06
Compressor intake temp. sensor (suction temp)
F12
High-pressure sensor
F16
Low-pressure sensor
F17
Heat exchanger 2 liquid temp. sensor
F24
Heat exchanger 2 gas temp. sensor
F23
Heat exchanger 3 liquid temp. sensor
F26
Heat exchanger 3 gas temp. sensor
F25
Ceiling panel connection failure
<<P09>>
Protective
device
Indoor unit
Thermal protector in indoor unit fan motor is activated.
<<P01>>
Float switch is activated.
<<P10>>
Fan inverter protection function activated.
<<P12>>
Outdoor unit
Oxygen (O
2
) gas sensor activated.
P14
Compressor thermal protector is activated.
Power supply voltage is unusual.
(More than 260V or less than 160V between L1 and L2 phase.)
P02
Compressor 1 (INV) discharge temp. trouble
P03
High-pressure switch
P04
Reverse phase (missing phase) detected.
P05
DCCT, ACCT overcurrent (compressor less than 80 Hz)
P16
Compressor 2 (constant speed) discharge temp. trouble
P17
Compressor 3 (constant speed) discharge temp. trouble
P18
Outdoor unit fan trouble
P22
DCCT, ACCT over current (80 Hz or more)
P26
INV compressor start failure. (Missing phase or lock alarm)
P29
Failure of nonvolatile memory IC (EEPROM) on indoor unit control PCB
F29
Failure of nonvolatile memory IC (EEPROM) on outdoor unit control PCB
F31
Protective
device
Overload current detected.
Compressor 2 (constant speed)
H11
Compressor 3 (constant speed)
H21
Lock current detected.
Compressor 2 (constant speed)
H12
Compressor 3 (constant speed)
H22
No current detected when
compressor was ON.
Compressor 1 (INV)
H03
Compressor 2 (constant speed)
H13
Compressor 3 (constant speed)
H23
Discharge temp. sensor trouble
Compressor 2 (constant speed)
H15
Compressor 3 (constant speed)
H25
Outdoor unit protection
Low-pressure trouble
H06
Outdoor unit protection
HIC trouble alarm
H31
Low oil alarm
H07
Connection failure of oil detection sensor
Compressor 1 (INV)
H08
Compressor 2 (constant speed)
H27
Compressor 3 (constant speed)
H28
Fusing of electromagnetic contact (Current detected when compressor was OFF)
CHECK
only blinking
(No display changes)
Automatic backup operation
<< >> alarm indication: Does not affect the operation of other indoor units.
< > alarm indication: In some cases may affect the operation of other indoor units.
Timer lamp blinking
Operating and timer
lamps blinking
altemately
Timer and heat
ready lamp blinking
altemately
Operating and heat
ready lamp blinking
altemately
Operating and timer
lamp blinking
simultaneously
Operating and timer
lamp blinking
simultaneously
W-2WAY ECO-i SYSTEM̲Eng5.indd 3
W-2WAY ECO-i SYSTEM̲Eng5.indd 3
2008/09/02 17:46:33
2008/09/02 17:46:33
