Daikin ERQ, Service Manual

Page: 199 / 260

ESIE09-05 Troubleshooting by Indication on the Remote Controller
Troubleshooting 189
Troubleshooting
(V3067)
(Orange) 1
Measuring points
1 - 6
2 - 6
3 - 6
4 - 6
(Red) 2
(Yellow) 3
(Black) 4
5
(Gray) 6
∗
Make measurement of resistance
between the connector pins, and
then make sure the resistance
falls in the range of 40 to 50
Ω
.
(V3067)
YES
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Return to normal?
Turn power supply off, and
turn power supply on again.
Electronic
expansion valve is
connected to X21A and
X22A of outdoor unit
PC board
(A1P).
Normal
when coil
check (
∗
1) of the moving
part of the electronic
expansion valve is
checked.
The connecting
cable is short-circuited or
disconnected.
Replace the connecting cable.
Replace outdoor unit PC board
(A1P).
NO
NO
NO
NO
Replace the moving part of the
electronic expansion valve.
External factor other than
malfunction (for example, noise
etc.).
After connecting, turn the power
off and then back on again.
YES
YES
YES
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