Midea CSU 12HCAA, Руководство по установке и обслуживанию

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Installation & Maintenacne
Manual
NO,
Tro
uble d
isplay
Symptom
V
erifying me
thod
Maintenance
During
operation,
shortcircuit
and
open
circuit t
h
e indo
or
room
temperature
therm
istor
for
2
seco
nds
respectively
.
Outdoor un
it
fails to
run
Check if the
rmistor is
out of w
ork
Reconnect
the plu
g
Check the in
door
circuit boar
d
Flickers tw
ice an
d ON f
or 5
seconds re
peatedly
Room temperature thermistor
Flickers thr
ice an
d ON f
or
5 seco
nds re
peatedly
.
Indoor fan m
otor
runs fo
r 12
seconds and stops f
or 3
minutes. M
otor
is dam
aged,and
fan fa
ils to ru
n.
Check
the indo
or elect
rical
control board
Check t
he indoo
r fan mot
or
Replug
the plug
Indoor fan motor Pipe- temperature thermistor
Check
if the th
ermistor is
out of w
ork
Reconnect th
e plug
Check
the ind
oor cir
cuit
board
Outdoor un
itfails
to run
Flickers for
four ti
mes a
nd ON
for 5 se
conds repe
atedly.
When the indoor fan motor runs for the 12 seconds,
it is
impossible to emit feedback signal of rotation speed.
unplug the plug CN211, measure the section between Cn121
, and
verify if signal is
over 1.5V
--
During operation,
shortcircuit and open circuit the indoor pipe-temperature
thermistor for 2 seconds
3.
T
rouble
selfchecking
table
Before
troubleshooting,
ensure
that
the
symptom
reoccurs
for
precise
judgement.
9K/12K/18K
Double 8 of L
ED di
splay
E2
E6
E1
Outdoor defro
sting
thermistor
E5
Outdoor
unit
doesn't operate
Check to
see
whether
thermistor
is
ineff
ectiv
e.
Reconnect so
cket.
Check in
door
circuit
board.
After
compressor
is
started,
defrost
thermistor
is
connected
or
disconnected.
Tro
uble so
urce
1 2
4
3
VII.Troubleshooting