Outdoor Unit: Malfunction Of Moving Part Of Electronic Expansion Valve (Y1E); Electronic Expansion Valve (Y1E) - Panasonic Urban Multi MX1R Series Service Manual

Troubleshooting
3.17 Outdoor Unit:
E9 E9 E9 E9
Remote Controller
Display
„ Defect of moving part of electronic expansion valve
Supposed Causes
„ Defect of outdoor unit PC board (A1P)
„ Defect of connecting cable
Troubleshooting
∗ 1 Coil check method for the moving part of the electronic expansion valve
Disconnect the electronic expansion valve from the PC board and check the continuity between the
connector pins.
(Normal)
1. White
2. Yellow
3. Orange
4. Blue
5. Red
6. Brown
• : Continuity Approx. 300 Ω
{ : Continuity Approx. 150 Ω
×: No continuity
Note: MX1R Series...X12A
ME1R Series...X14A, X15A
360
Malfunction of Moving Part of Electronic Expansion Valve (Y1E)
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Electronic
expansion valve is
connected to X12A or X14A,
X15A of outdoor unit PC
board (A1P).
YES
Normal
when coil check (∗1)
of the moving part of the
electronic expansion
valve is checked.
YES
The connecting cable
is short-circuited or
disconnected.
NO
Pin No. 1. White
NO
NO
YES
2. Yellow 3. Orange
•
×
×
Troubleshooting Urban Multi "MX1R, ME1R Series" Using R-407C
PACD011001C2
After connecting, turn the power off and
then back on again.
Replace the moving part of the
electronic expansion valve.
Replace the connecting cable.
Replace outdoor unit PC board A1P.
4. Blue 5. Red
{
×
•
×
{
×
×
(VF043)
6. Brown
×
{
×
{
×