Midea MCA3U-09HRFN1-M(C)

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17.4.22 Auto-lifting panel malfunction(F8)
Malfunction decision conditions
Indoor PCB does not get the right close position from the
PCB of auto lifting-panel when the panel motor stops
Possible causes
● Wiring mistake between indoor PCB and
auto-lifting panel
● Faulty PCB of auto-lifting panel
● Faulty indoor PCB
Auto-lifting panel malfunction
Auto-lifting panel malfunction
Can the auto-lifting panel move
normally?
Can the auto-lifting panel move
normally?
Are they correctly wired?
Are they correctly wired?
Yes
No
The main control PCB of auto-lifting
panel is defective. Replace it
The main control PCB of auto-lifting
panel is defective. Replace it
Yes
No
Are they wired incorrectly?
Are they wired incorrectly?
Yes
Reconnect
Reconnect
No
Control panel to lift or drop by controller
Control panel to lift or drop by controller
Power off, then restart the unit 2
minutes later.
Power off, then restart the unit 2
minutes later.
Has the problem been
solved?
Has the problem been
solved?
Check the wiring of the louver motors.
Check the wiring of the louver motors.
Yes
Has the problem been
solved?
Has the problem been
solved?
NO
Has the problem been
solved?
Has the problem been
solved?
Reconnect
Reconnect
Replace the louver motors.
Replace the louver motors.
Check the wiring of left and right
sensors.
Check the wiring of left and right
sensors.
NO