Troubleshooting by Indication on the Remote Controller
134
Troubleshooting
Note:
∗
1. Coil check method for the electronic expansion valve
coil
Discount the electronic expansion valve from the
PCB and check the continuity between the connector
pins.
YES
NO
YES
NO
External factor
other than error
(for example,
noise etc.).
NO
After connecting,
turn the power
OFF and then
back ON again.
Return to
normal?
Electronic
expansion valve is
connected to outside
unit PCB.
YES
NO
Replace the
electronic
expansion valve
coil.
YES
Replace the relay
cable.
Normal
when coil check
(
∗
1) of the electronic
expansion valve is
checked.
Replace the
outside unit PCB.
The
relay cable is
short-circuited or
disconnected.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Turn power supply OFF,
and turn power supply ON
again.
