Daikin ERSQ 011AAV1, Service Manual

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Troubleshooting by Indication on the Remote Controller ESIE09-08
132 Troubleshooting
3.3
“A9”
Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (K1E) R-410A circuit
Remote Control
Display
A9
Subcode 0
Applicable
Models All indoor and outdoor unit models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
„ Malfunction of moving part of electronic expansion valve
„ Defect of indoor unit PC board (A1P)
„ Defect of connecting cable, bad wire
Troubleshooting
(V2781)
Caution
Be sure to turn off power switch before connect or disconnect connector, or
parts damage may be occurred.
After connecting, turn the power
supply off and then back on.
X7A [1, 2, 3, 4, 5, 6]
Replace the moving part of the
electronic expansion valve.
YES
YES
NO
NO
Replace the connecting cable.
If you turn the power supply off and
turn on again, and it still does not
help, replace the indoor unit PC
board (A1P).
NO
YES
The
electronic
expansion valve is
connected to X7A of the
indoor unit PC
board.
Normal
when coil
check (
*
1) of the
moving part of the electronic
expansion valve is
checked.
The connecting
cable is short-circuited or
disconnected.