A9" Indoor Unit: Malfunction Of Moving Part Of; Electronic Expansion Valve (Y1E) - Daikin FCQ18PVJU Service Manual

SiUS28-902_a
A9
3.6 " " Indoor Unit: Malfunction of Moving Part of

Electronic Expansion Valve (Y1E)

A9
Remote
Controller
Display
Applicable All indoor unit models
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
 Malfunction of moving part of electronic expansion valve
Supposed
 Defect of indoor unit P.C.B.
Causes
 Defect of connecting cable
Troubleshooting
Troubleshooting
Be sure to turn off the power switch before connecting or disconnecting
Caution
the connector, or parts could be damaged.
The
electronic
expansion valve is
NO
connected to X7A of the
indoor unit
P.C.B.
YES
Normal
when coil check
NO
(*1) of the moving part of
the electronic expansion
valve is
checked.
YES
The connecting
YES
cable is short-circuited or
disconnected.
NO
Troubleshooting by Indication on the Remote Controller
After connecting, turn the power
supply off and then back on.
Replace the moving part of the
electronic expansion valve.
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
P.C.B.
92