Service manual

ESIE12-06 Troubleshooting by Remote Controller
Service Diagnosis 205
Troubleshooting
Note:
1 Connector and indoor unit PCB
Refer to P.248.
CHECK 7
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be occurred.
Turn OFF the power supply and turn
the power ON again.
Connect properly.
YES
YES
NO
NO
YES
Mount properly.
NO
Replace the coil of the
electronic expansion valve.
NO
YES
A
Error is displayed again?
Is the
temperature
sensor of each thermistor
(suction pipe, discharge pipe,
intermediate heat exchanger and
heat exchanger distributor
pipe thermistors)
mounted
properly?
Is the coil
resistance of the electronic
expansion valve normal?
Is the
electronic expansion
valve connector properly
connected to the outdoor
unit PCB?
(∗1)
Model Connector for electronic expansion valve PCB
RZQG X21A A1P
CHECK 7