SiUS04-924
Index 192
N
night set mode ............................................................24
O
ol activation ................................................................90
on/off button on indoor unit ........................................29
opening limit ...............................................................43
operation lamp ...........................................................75
outdoor air temperature thermistor ...........................104
outdoor heat exchanger thermistor ....................31, 104
outdoor unit fan system check .................................118
outdoor unit pcb abnormality ......................................89
outdoor unit quiet operation .......................................62
output overcurrent detection ....................................108
overcurrent ...................................................45, 93, 108
overload ...............................................................45, 90
over-voltage detection ..............................................112
P
p4 .............................................................................103
pcb, removal of .................................................136, 179
phase steps ................................................................20
pi control .....................................................................34
piping diagrams ........................................................199
piping fixture .............................................................156
position sensor abnormality .......................................99
power failure recovery function ..........................11, 194
power supply waveforms check ...............................118
power transistor ................................................107, 195
power transistor check .............................................119
power-airflow dual flaps .............................................19
powerful operation ..........................................28, 46, 61
preheating operation ..................................................35
pressure equalization control .....................................43
printed circuit board (pcb)
control pcb (indoor unit) .......................................12
display pcb ...........................................................12
main pcb ..............................................................14
service monitor pcb .............................................14
signal receiver pcb ...............................................12
problem symptoms and measures .............................76
program dry function ..................................................21
R
radiation fin temperature rise ...................................106
radiation fin thermistor ..............................................104
remote controller ................................................52, 193
room temperature thermistor ......................................86
rth1 .............................................................................11
S
s1 .......................................................................11, 131
s10 .............................................................................13
s101 ...........................................................................13
s102 ...........................................................................13
s20 .....................................................................13, 176
s21 .............................................................................11
s25 ..............................................................................11
s32 ..............................................................................11
s40 ..............................................................................13
s41 ............................................................................132
s41 ......................................................................11, 132
s46 ..............................................................................11
s47 ..............................................................................11
s48 ..............................................................................11
s49 ..............................................................................11
s51 ..............................................................................13
s52 ..............................................................................13
s70 ......................................................................13, 176
s80 ......................................................................13, 176
s90 ......................................................................13, 176
sensor malfunction detection ......................................45
service check function ................................................77
service cover ............................................................126
service monitor pcb ....................................................14
shelter .......................................................................133
side panel .................................................................162
signal receiver ..........................................................123
signal receiver pcb ......................................................12
signal receiving sign ...................................................29
signal transmission error ............................................87
signal transmission error on outdoor unit pcb ...........113
silicon grease ....................................................107, 195
sound blanket ...........................................................186
specifications ................................................................7
starting operation control ............................................43
suction grille ..............................................................161
sw1 .......................................................................11, 13
sw4 .............................................................................13
swing motors ............................................................144
switch b .......................................................................47
T
terminal strip .............................................................131
test run ......................................................................193
thermistor
discharge pipe thermistor .............. 31, 43, 104, 184
heat exchanger thermistor .......................... 86, 183
indoor heat exchanger thermistor ..................... 130
indoor heat exchanger thermistor ....................... 31
outdoor air temperature thermistor .................... 104
outdoor heat exchanger thermistor ............. 31, 104
radiation fin thermistor ....................................... 104
room temperature thermistor ............................... 86
thermistor or related abnormality (indoor unit) ............86
thermistor or related abnormality (outdoor unit) .......103
thermistor resistance check ......................................116
thermistor, removal of ...............................................183
thermostat control .......................................................23
timer operation ............................................................64
titanium apatite photocatalytic air-purifying filter .29, 124
top panel ...................................................................162
troubleshooting ...........................................................80
troubleshooting with the led indication ........................75
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