Midea MSC-24HRN1 User Manual

Service manual
35
The unit does not
operate
Does the power LED
light after turning
the switch on?
C heck the electrical
source.
No
Check the po wer
supplier.
Does the voltag e
between inpu t
terminates o f
transformer i s
correct?
Does the voltag e
between outp ut
terminates o f
transformer i s
correct?
D oes the power
tr ansfer to t he
di splay boa rd?
Replace the main
PCB b oard.
Yes
Yes
No
Check wirin g.
Replace the
transformer.
No
No
Do th e LED lamps
indicates ERR?
Ye s
Per form
the related
inst ruct ions.
Yes
No
Is there beep from
the unit when using
remoter?
Check the soft
starter
Ch eck the battery
of the remoter.
No
Check the display
board .
Replace the
disp lay board.
Yes
No
Replace the
disp lay boa rd .
Yes
Ye s
Does the unit run in
Forced Cool mode?
Abno rm al no ise
from the indoor unit
Does it happ e n in
Fan Only mode?
Yes No
Does it happ en with
auto swing?
Check the
swing motor.
Yes
Check t he
swing louver.
Check the fan
motor.
No
Check the cross flow
fan .
Replace the bear.
Does it just happen
in the beginning of
cooling or heatin g
mode?
It is b ecause
of the h eat
rub be tween
plastics parts.
It is normal.
Yes
Check the input
and output pipe.
No
R ecycle the ref rige-
r ant and recha rge.
Abnormal noise
from the outdoor
unit
D oes it happ en in
C ool mode?
Yes
Do the fan blade rub
with the shroud?
C h ec k t he
motor.
Yes
C h ec k t he
fan blad e.
C heck the fixing nuts
of outdoor unit.
No
Check the
motor
supporter.
Check the capillary.
C heck the
compressor.
No
Recycle the refrig e-
ran t and recharge.

Midea MSC-24HRN1 Specifications

General

Brand	Midea
Model	MSC-24HRN1
Category	Air Conditioner
Language	English