Daikin FFQ25BV1B - Page 196

Error Codes ESIE05-04
3–34 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.
Replace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
Yes
Yes
Yes
Yes Yes
Yes
Yes
Yes
Yes
No No
Yes
No
No
No
No No
No
No
Yes