Daikin RZQ125B7W1B [192/326] 44 part 3 troubleshooting

Daikin RZQ71B8V3B [192/326] 44 part 3 troubleshooting
Error Codes: Indoor Units ESIE05-03
3–44 Part 3 Troubleshooting
3
1
3
4
5
Troubleshooting
Remark If "A3" is detected by a PC board which is not mounted with X15A, the PC board is defective.
Caution Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Begin
Is the
unit a cassette
or built-in
type?
Is a
drain pump
connected to the
indoor unit
PCB?
Does the
drain pump work
after restarting
operation?
Is the
drain water level
abnormally
high?
Is
the float
switch connected
to X15A?
Does
"A3" appear on
the remote controller
display?
220-240
VAC?
Is there
continuity?
Is the
optional drain
raising mechanism
connected?
Is
the short
circuit connector
connected to X15A on
the indoor unit
PCB?
Connect the
Short-circuit
connector.
Connect the
Short-circuit
connector.
Set to
"emergency"
and check the
voltage of
X25A.
Replace the
drain pump.
Remove the float switch from
X15A, short-circuit X15A, and
restart operation.
Replace indoor
unit PCB.
There is a
malfunction of the
drain system.
Replace float
switch.
Replace the
indoor unit PCB.
Connect
float
switch
Connect
the drain
pump.
Replace
indoor unit
PCB.
Check the continuity of the
short-circuit connector.
No
Ye s
Ye s
Ye s
Ye s Ye s
Ye s
Ye s
Ye s
Ye s
No No
Ye s
No
No
No
No No
No
No
Ye s
ESIE05-03.book Page 44 Wednesday, April 6, 2005 4:09 PM

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