![background image](http://html.mh-extra.com/html/ge/as0cd09-series/as0cd09-series_technical-service-manual_2198768041.webp)
39
Cycle Troubleshooting Guide
Temp. Difference
Operating
Current
1. Trouble analysis
1. Check temperature difference between intake and discharge air and operating current
Temp. difference
:approx 0
0
F
Current
:less than 80% of
rated current
Temp. difference
:approx 14
0
F
Current
:less than 80% of
rated current
Temp. difference
:approx 14
0
F
Current
:over the
rated current
Temp. difference
:over 14
0
F
Refrigerant
leaked out.
Check refrigeration cycle.
Refrigerant leak or
Clog of refrigeration cycle
(restriction)
Defective compressor
Excessive amount of
refrigerant or restricted con-
denser coil airflow.
Normal
Notice:
Temperature difference between intake and discharge air depends on room air humidity. When the room air humidity is
relatively higher, temperature difference is smaller. When the room air humidity is relatively lower temperature difference is
larger.
2. Check temperature and pressure of refrigeration cycle.
Notice:
1. The suction pressure is usually 70-75 PSIG at normal condition.
2. The temperature can be measure by attaching the thermometer to the low pressure tubing and wrap it with putty.
e
r
u
s
s
e
r
p
n
o
i
t
c
u
S
h
t
i
w
d
e
r
a
p
m
o
C
(
)
e
u
l
a
v
l
a
m
r
o
n
e
r
u
t
a
r
e
p
m
e
T
h
t
i
w
d
e
r
a
p
m
o
C
(
)
e
u
l
a
v
l
a
m
r
o
n
e
h
t
e
l
b
u
o
r
T
f
o
e
s
u
a
C
n
o
i
t
p
i
r
c
s
e
D
r
e
h
g
i
H
h
g
i
H
r
o
s
s
e
r
p
m
o
c
e
v
i
t
c
e
f
e
D
.
w
o
l
s
i
t
n
e
r
r
u
C
l
a
m
r
o
N
f
o
t
n
u
o
m
a
e
v
i
s
s
e
c
x
E
t
n
a
r
e
g
i
r
f
e
r
s
e
o
d
e
r
u
s
s
e
r
p
h
g
i
H
t
a
e
s
i
r
y
l
k
c
i
u
q
t
o
n
f
o
g
n
i
n
n
i
g
e
b
e
h
t
n
o
i
t
a
r
e
p
o
r
e
w
o
L
r
e
h
g
i
H
f
o
t
n
u
o
m
a
t
n
e
i
c
i
f
f
u
s
n
I
)
e
g
a
k
a
e
L
(
t
n
a
r
e
g
i
r
f
e
r
g
n
i
g
g
o
l
C
w
o
l
s
i
t
n
e
r
r
u
C
w
o
l
s
i
t
n
e
r
r
u
C
Summary of Contents for AS0CD09 Series
Page 2: ......
Page 45: ...43 5 When Indoor Fan does not operate ...
Page 47: ...45 7 When a communication error occurs ...
Page 48: ...46 8 Indicators in case of connecting error INDOOR ...
Page 50: ...48 9 Voltage of Connectors according to Indoor Fan speed ...
Page 54: ...52 ...
Page 55: ...53 ...
Page 56: ...54 ...
Page 57: ...55 ...
Page 58: ...56 Ω Ω Ω Ω Ω Ω Ω Ω Ω ...
Page 59: ...57 ...
Page 60: ...58 ...
Page 61: ...59 ...
Page 62: ...60 ...
Page 63: ...61 ...
Page 65: ...63 Illustrated Parts Catalog ...
Page 66: ...64 Illustrated Parts Catalog ...
Page 68: ...66 Illustrated Parts Catalog ...
Page 69: ...67 Illustrated Parts Catalog ...
Page 71: ...69 Illustrated Parts Catalog ...
Page 72: ...70 Illustrated Parts Catalog ...