SiENBE18-621
Service Check Function
Troubleshooting
263
2.5
Sky Air Indoor Unit Error Codes and LED Indication
Symbols
5
: Blinks
4
: On
3
: Off — : No connection with troubleshooting
-
: High probability of malfunction
#
: Possibility of malfunction
.
: Low probability of malfunction
— : No possibility of malfunction (do not replace)
System
Indoor Unit
Remote
Control
Display
Location of Malfunction
Contents of Malfunction
Details of
Malfunction
(Reference
Page)
Other
than PC
Board
PC Board
Outdoor
Unit
Indoor
Unit
Remote
Control
U5
-
—
#
#
Transmission error (between
indoor and remote control)
295
U8
-
—
#
#
Transmission error between
“main” remote control and
“sub” remote control
296
UA
-
—
#
—
Excessive indoor units
connected to this system.
297
Indoor
Unit
LED
Display
(H1P)
Remote
Control
Display
Location of Malfunction
Contents of Malfunction
Details of
Malfunction
(Reference
Page)
Other
than PC
Board
PC Board
Outdoor
Unit
Indoor
Unit
Remote
Control
5
—
—
—
—
Normal
→
to outdoor unit
—
5
A1
—
—
#
—
Failure of indoor unit PC
board (For self-diagnosis by
LED, refer to p.252.)
281
4
3
5
A3
-
—
—
—
Malfunction of drain water
level system
282
5
AF
-
—
—
—
Float switch operation
during compressor stop
284
5
A6
(FHQ only)
-
—
.
—
Indoor unit fan motor
overload / overcurrent / lock
285, 286
5
A7
-
—
.
—
Swing flap motor
Malfunction / Lock
288
5
AJ
-
—
#
—
Failure of capacity setting
290
5
C4
-
—
.
—
Malfunction of heat
exchanger temperature
sensor system (R2T)
291
5
C5
-
—
.
—
Malfunction of heat
exchanger temperature
sensor system (R3T)
292
5
C9
-
—
.
—
Malfunction of suction air
temperature sensor system
293
5
CJ
—
—
.
—
Malfunction of remote
control air temperature
sensor system
294
Summary of Contents for BPMKS967B2B
Page 1: ...SiENBE18 621 E Series Service Manual Applied Models Super Multi Plus Heat Pump...
Page 12: ...SiENBE18 621 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Page 19: ...List of Functions SiENBE18 621 8 List of Functions...
Page 33: ...Specifications SiENBE18 621 22 Specifications...
Page 69: ...Refrigerant Flow for Each Operation Mode SiENBE18 621 58 Refrigerant Circuit...
Page 121: ...Indoor Unit SkyAir Models SiENBE18 621 110 Function...
Page 169: ...Instruction SiENBE18 621 158 System Configuration FTXS 20 25 35C Indoor Unit...
Page 371: ...Method of Replacing The Inverter s Power Transistors Modules SiENBE18 621 360 Troubleshooting...
Page 393: ...SiENBE18 621 vi Index...