" Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E)
All indoor unit models
Use a microcomputer to check the electronic expansion valve for coil conditions.
When the pin input of the electronic expansion valve is not normal while in the initialization of
Malfunction of moving part of electronic expansion valve
Defect of indoor unit PC board
Defect of connecting cable
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
expansion valve is
connected to X7A of the
indoor unit PC
when coil check
(∗1) of the moving part of
the electronic expansion
cable is short-circuited or
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