31
Issue 200906
Rev. Ref0906S012V0
8-3. Checking flow chart
Com pressor
doesn
ÿ
t start
W hether lighting
and display system is
norm al
W hether the
grade of therm ostat is
on 0
W hether the
resistance of com pressor is
infinite or 0
W hether the
starting current is
about 5A
W hether PTC starter
ᢃ
resistance between running jack
and starting jack is 16-50 O
M easure whether
two ends of heat protector
is through
W hether the finger
of m ultim eter swing to 0 quickly
and then swing back slowly
when m easuring two
poles of capacitance
W hether
com pressor
ᢃ
pin is tight,
contact
is good
W hether input
and output voltage of m ain
control board is norm al
W hether each
contact of m ain control board
is norm al
Tighten each
contact and test m achine
again
Y
Trouble of lighting and display system
Adjust the grade according to fact
Com pressor is open circuit or short
circuit
Inner trouble of com pressor
If it is infinite or 0, then the starter is
out of work.
Heat protector is out of work
Capacitance is out of work
Insert again, electrify and test
M ain control board is out of work
Change for a new com
pres
sor
Y
N
N
N
Y
Y
Y
Y
Y
N
Y
Y
Y
N
N
N
N
N
Com pressor doesn
ÿ
t start
som etim es because the
tem perature in case is
between starting and stop
tem perature, should pay
attention when do test
Adjustm ent of therm ostat
Tem perature of
environm ent
>30
ć
1-3 grade
16-30
ć
3-5grade
<16
ć
5-7grad
SERVICE MANUAL
Model:
HRF-663
ISB2R/B/W
