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Table 9: Troubleshooting Chart
Refrigerant Circuit
H
e
a
d
P
e r
s s
u
e r
o T
o
H
H
e
a
d
P
e r
s s
u
e r
o T
o
L
S
u
t c
o i
n
p
e r
s s
u
e r
o t
o
S
u
t c
o i
n
p
e r
s s
u
e r
o t
o
Liquid overfeeding
(expansion valve)
L
q i
u
d i
o
v
r e
e f
e
d
n i
g
(cap tube)
n I
s
d i
e
c
o
f l i
o r
t s
n i
g
C
o
m
r p
s e
. s
u r
s n
i -
a n
d
or no cooling/heating
Electrical
Compressor and outside
fan won't start
Compressor will not start
but outside fan runs
Outside fan won't start
Compressor hums
but won't start
Compressor cycles
on internal overload
Inside fan won't start
TTA-R407C-EN1113
TTA-R407C-EN1113.indd 25
TTA-R407C-EN1113.indd 25
Trouble Shooting
g i
h
o
w
h
g i
h
o l
w
e
q
a u
e t
P P
S
P
S
P
P
S S
P
P
S
P P
S
S
P
S
P
S
S
S
P
P
S
P : primary cause
S : secondary cause
P
S
P
S
P
S
P
P
P
P
S
P
S
S
P
S
S
P
S
P P
P
P
P
S
P P
S
S
P
S
S
S
S
S
S
S
P
S
S
S
P
S
P
S
P
P
S
S
P
S
S
P
S
S
S
S
S
P
S
25
12-Sep-16 13:28:23
12-Sep-16 13:28:23
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