Checking Flow Chart - Haier HRF-633ISB2R Service Manual

SERVICE MANUAL
Model: HRF-663ISB2R/B/W

8-3. Checking flow chart

Com pressor
doesn t start
Y
W hether lighting
and display system is
normal
Y
W hether the
grade of therm ostat is
on 0
N
W hether the
resistance of compressor is
infinite or 0
N
W hether the
starting current is
about 5A
N
W hether PTC starter
resistance between running jack
and starting jack is 16-50 O
Y
M easure whether
two ends of heat protector
is through
Y
W hether the finger
of multimeter swing to 0 quickly
and then swing back slowly
when m easuring two
poles of capacitance
Y
W hether
compressor pin is tight,
contact
is good
Y
W hether input
and output voltage of main
control board is normal
Y
W hether each
contact of main control board
is norm al
Tighten each
contact and test machine
again
N Trouble of lighting and display system
Y Adjust the grade according to fact
Compressor is open circuit or short
Y
circuit
Y Inner trouble of com pressor
If it is infinite or 0, then the starter is
N
out of work.
N Heat protector is out of work
N Capacitance is out of work
N Insert again, electrify and test
N Main control board is out of work
Com pressor doesn
sometim es because the
tem perature in case is
between starting and stop
temperature, should pay
attention when do test
Issue 200906
Rev. Ref0906S012V0
Adjustm ent of thermostat
t start
Temperature of
environm ent
>30 1-3 grade
16-30 3-5grade
<16 5-7grad
31