![Midea MOA-11HN1-QB8 Service Manual Download Page 50](http://html1.mh-extra.com/html/midea/moa-11hn1-qb8/moa-11hn1-qb8_service-manual_1790816050.webp)
48
9.2 Diagnosis and Solution
9.2.1 Indoor fan speed has been out of control diagnosis and solution
Shut off the power supply
and turn it on 5 seconds
later. Is it still displaying
the error code?
Shut off the power supply,
rotate the fan by hand.
Does it rotate properly?
The unit operates normally.
Find out the cause and
have it solved. For
example, check
whether the fan is
blocked or the bearing
is broken?
Check the wires of fan
motor. Are all the
connections good?
No
Yes
No
Correct the connections.
No
Yes
Check whether the main PCB is
normal through index 2?
Yes
Yes
Check whether the fan
motor is normal through
index 1?
Yes
Replace the fan
motor
Replace the
main PCB.
The
malfunction is
solved?
No
No
If the
malfunction is
still existing,
replace the
main PCB
No
Summary of Contents for MOA-11HN1-QB8
Page 1: ...LUNA ON OFF SERIES Service Manual 2014 9ASEU B1 1401...
Page 16: ...14 MS9A 12HRN1 QC7G...
Page 17: ...15 MS9A 18HRN1 QC5...
Page 18: ...16 MS9A 24HRN1 QB8W...
Page 20: ...18 MOC 17HN1 QC0...
Page 21: ...19 MOC 18HN1 QC0 MOF3 18HN1 QC5...
Page 22: ...20 MOP 24HN1 QB8W...
Page 23: ...21 MOF1 24HN1 QB8W...