Service Diagnosis
19
A3
Description
Drain Pump Abnormality
Supposed Cause
1. Malfunctioning drain pump.
2. Improper drain piping work.
3. Drain piping clogging.
4. Malfunctioning
fl
oat switch.
5. Malfunctioning indoor unit PC board.
Troubleshooting
Does the
drain pump work
after restarting
operation?
Is a drain
pump connected to
the indoor unit
PCB?
No
Yes
Does “A3”
appear on the
remote controller
display?
Yes
Begin
There is a mulfunction
of the drain system.
Yes
Is the
drain water level
abnormally
high?
Is the
float switch
connected to
A5?
220-240
VAC?
Yes
Replace the
drain pump.
Connect the
drain pump.
Replace indoor
unit PC board.
Replace float
switch.
Yes
Yes
No
No
No
No
Connect
float
switch.
No
Replace
indoor
unit PC
board.
Set to
“emergency”
and check the
voltage of
X25A.
Remove the
float switch from
A5, short-circuit
A5, and restart
operation.
Содержание SKYAIR
Страница 1: ...R410A SERVICE MANUAL SKYAIR Inverter Single Split SM 5CKY CCY CEY EU A1...
Страница 3: ...ii...
Страница 29: ...Wiring Diagram 26 Wiring Diagram Model ABQ71 100 125 140AV1 Model ACQ71 100 125AV1...
Страница 30: ...Wiring Diagram 27 Model AHQ71AV1 Model AHQ100 125AV1...
Страница 31: ...Wiring Diagram 28 Model AHQ140AV1 Model ABQ140BV1...
Страница 32: ...Wiring Diagram 29 Model ACQ100 125BV1 Model ABQ71 100CV1...
Страница 33: ...Wiring Diagram 30 Model ABQ125 140CV1 Model ACQ71 100 125CV1...
Страница 34: ...Wiring Diagram 31 Model AHQ71 100 125CV1 Model AHQ140CV1...