56
Thermistor resistance table
During outdoor unit emergency operation or test operation, the LED on the P.C.B. will flash.
10.5. Self-diagnosis
• The display screen on the wired remote control unit and the self-diagnosis LEDs (green) on the outdoor unit printed circuit board
in the outdoor unit can be used to indicate where the location of a problem is.
• If the problem disappears and operation returns to normal, the CHECK display on the remote control unit will switch off, but thec
self-diagnosis LED will remain illuminated until operation is resumed.
• Key indicator
Temperature Resistance value (k:)±5%
Indoor Outdoor
Room
temperature
thermistor
Pipe
temperature
thermistor
Outdoor
temperature
thermistor
Discharge
temperature
Suction
temperature
thermistor
Pipe temperature
thermistor
Defrost
temperature
thermistor
-20C 158.5 211.3 15.5 528.3 47.9 47.9 47.9
-10 87.5 116.7 87.5 291.8 27.1 27.1 27.1
-5 66.1 88.2 66.1 220.5 20.7 20.7 20.7
0 50.5 67.3 50.5 168.3 15.9 15.9 15.9
5 38.9 51.9 38.9 129.8 12.4 12.4 12.4
10 30.3 40.4 30.3 100.9 9.8 9.8 9.8
15 23.8 31.7 23.8 79.2 7.7 7.7 7.7
20 18.8 25.1 18.8 62.7 6.2 6.2 6.2
25 15 20 15 50 5 5 5
30 12.1 16.1 12.1 40.2 4 4 4
40 8 10.6 8 26.5 2.7 2.7 2.7
50 5.4 7.2 5.4 17.9 1.9 1.9 1.9
60 3.7 5 3.7 12.4 - 1.3 -
70 - 3.5 - 8.8 - 0.9 -
80 - 2.5 - 6.3 - - -
90 - 1.9 - 4.7 - - -
100 - 1.4 - 3.5 - - -
LED symbol Description
Off
Flashing
Illuminated
Wired remote control unit
display
Outdoor unit printed circuit board LED
Location of problem Check location
Abnormal
display
Detail
display
302 303 304 305 306 307 308 309
F15 -01
Drain level Float switch problem Drain pump and drain pipe, indoor unit
connectors CN-DRMTR & CN-TH2
F16 -01
Louver switch problem Louver motor, decorative panel connection
terminal, or indoor unit louver motor connectors
F17 -02
D. C Fan Motor problem Indoor unit D.C Fan motor or connection
terminals
F20
-01
Indoor temperature sensor
problem
Indoor temperature sensor lead wire or indoor
unit connector or CN-TH2
-02
Remote control thermistor
problem
Remote control thermistor
F21 -01
Pipe temp. sensor problem
(indoor unit)
Pipe temperature sensor lead wire or indoor unit
connector CN-TH1
F26 -01
Remote control transmission
problem
Remote control unit cable and connection
terminals
F27
-01
Indoor/outdoor unit
disconnection problem
Indoor/outdoor unit connection cable and
connection terminals, or indoor unit and outdoor
unit power supplies (indoor side)
-05
Indoor/outdoor unit connection
problem
Indoor/outdoor unit connection wire (indoor side)
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