Haier HFH-50, Service Manual

Page: 14 / 26

C o m p r e s s o r
d o e s n
’
t s ta r t
W h e th e r lig h tin g
a n d d is p la y s y s te m is
n o rm a l
W h e th e r th e
g ra d e o f th e rm o s ta t is
o n 0
W h e th e r th e
re s is ta n c e o f c o m p re s s o r is
in fin ite o r 0
W h e th e r th e
s ta rtin g c u rre n t is
a b o u t 5 A
W h e th e r P T C s ta rte r
抯
re s is ta n c e b e tw e e n ru n n in g ja c k
a n d s ta rtin g ja c k is 1 6 -5 0 O
M e a s u re w h e th e r
tw o e n d s o f h e a t p ro te c to r
is th ro u g h
W h e th e r th e fin g e r
o f m u ltim e te r s w in g to 0 q u ic k ly
a n d th e n s w in g b a c k s lo w ly
w h e n m e a s u rin g tw o
p o le s o f c a p a c ita n c e
W h e th e r
c o m p re s s o r
抯
p in is tig h t,
c o n ta c t
is g o o d
W h e th e r in p u t
a n d o u tp u t v o lta g e o f m a in
c o n tro l b o a rd is n o rm a l
W h e th e r e a c h
c o n ta c t o f m a in c o n tro l b o a rd
is n o rm a l
T ig h te n e a c h
c o n ta c t a n d te s t m a c h in e
a g a in
Y
T ro u b le o f lig h tin g a n d d is p la y s y s te m
A d ju s t th e g ra d e a c c o rd in g to fa c t
C o m p re s s o r is o p e n c irc u it o r s h o rt
c irc u it
In n e r tro u b le o f c o m p re s s o r
If it is in fin ite o r 0 , th e n th e s ta rte r is
o u t o f w o rk .
H e a t p ro te c to r is o u t o f w o rk
C a p a c ita n c e is o u t o f w o rk
In s e rt a g a in , e le c trify a n d te s t
M a in c o n tro l b o a rd is o u t o f w o rk
C
han
ge
fo
r a ne
w co
mp
re
s
s
or
Y
N
N
N
Y
Y
Y
Y
Y
N
Y
Y
Y
N
N
N
N
N
C o m p re s s o r d o e s n
’
t s ta rt
s o m e tim e s b e c a u s e th e
te m p e ra tu re in c a s e is
b e tw e e n s ta rtin g a n d s to p
te m p e ra tu re , s h o u ld p a y
a tte n tio n w h e n d o te s t
A d ju s tm e n t o f th e rm o s ta t
T e m p e ra tu re o f
e n v iro n m e n t
> 3 0
℃
1 -3 g ra d e
1 6 - 3 0
℃
3 -5 g ra d e
< 1 6
℃
5 -7 g ra d