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127 PB
TROUBLESHOOTING
Indoor fan does not rotate and there is no Feedback
Is the control panel reliably connected with the motor? Is it loose? Is the connecting sequence correct?
Is the input voltage within the normal range (measure the voltage between L and N of the wiring block XT with AC voltage gauge.)?
Y
Y
Y
N
N
N
Y
N
unit and start it
Energize the
Voltage between
L and N of
indoor wiring
block
Voltage > 200V?
Check power
supply
connecting
Check the
connecting
terminal
Reliable
connection
state of the
unit
Replace main
board of indoor
Remove the
Adjust
connecting
error?
state
remove the
error?
Replace motor
Finish
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