Ye
s
No
No
Ye
s
No
Ye
s
[F16]
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
Outdoor pressure sensor
miswiring (Pd, Ps)
1.
High-pressure Pd sensor and low pressure sensor
Ps are exchanged.
2.
Output voltage of each sensor is zero.
Are connection of
Pd sensor and Ps
sensor connectors
correct?
Are output
voltage characteristics
of Pd sensor and Ps
sensor normal?
Are Pd/Ps
output values
Pd>Ps during
compressor
operation?
Correct connection of connectors.
Pd sensor: CN501, Red
Ps sensor: CN500, White
Sensor error
Replace
Check compressor
.
Check outdoor I/F P
.C. board.
Defect
Replace
(1) Pressure (Check joint) by pressure gauge
(2) Pressure display on 7-segment display
(3) Output voltage of I/F P
.C. board
If (1) and (2), (3) are dif
ferent, an error of pressure
sensor itself is considered.
If (2) and (3) are dif
ferent, check interface P
.C. board.
V
alue can be confirmed by 7-segment
display function on outdoor I/F P
.C. board.
Pd SW01/02/03=1/1/2
Ps SW01/02/03=1/2/2
Ye
s
No
Ye
s
No
[F17]
Chec
k code
Chec
k code name
Indoor
T
O
A sensor error
Cause
T
O
A sensor Open/Shor
t
Is T
O
A
sensor connector
on indoor
P
.C
. board nor
mally
connected?
Are char
acter
istics
of
T
O
A sensor resistance
v
alue nor
mal?
Correct connection of
connector
.
Replace T
O
A
sensor
.
Chec
k indoor P
.C
. board.
Def
ect
→
Replace
* See "Indoor unit temperature sensor characteristics" on "8-
10
.
Sensor Characteristics".
Ye
s
Ye
s
No
No
[F18]
Chec
k code
Chec
k code name
Indoor
TRA sensor error
Cause
TRA sensor Open/Shor
t
sensor connector
on indoor
P
.C
. board nor
mally
connected?
Is TRA
Are char
acter
istics of
TRA sensor resistance
v
alue nor
mal?
Correct connection of
connector
.
Replace TRA
sensor
.
Chec
k indoor P
.C
. board.
Def
ect
→
Replace
* See "Indoor unit temperature sensor characteristics" on "8-
.
Sensor Characteristics".
Ye
s
Y
es
Y
es
No
No
Ye
s
No
[F23]
No
Connector: CN500, White
Check code
Check code name
Ps sensor error
Cause
Output voltage error of Ps sensor
Is connection of Ps
sensor connector
correct?
Are output
voltage characteristics
of Ps sensor
normal?
Is there no leakage
from SV4 valve?
Is not
refrigerant bypassed from
discharge to suction of
4-way valve?
Correct connection of
connector
.
Sensor error
Replace
Check compressor
.
Check 4-way valve.
Replace SV4 valve.
(1) Pressure (Check joint) by pressure gauge
(2) Pressure display on 7-segment display
(3) Output voltage of I/F P
.C. board
If (1) and (2), (3) are dif
ferent, an error of pressure
sensor itself is considered.
If (2) and (3) are dif
ferent, check interface P
.C. board.
−
1
9
7
−
Summary of Contents for MMY-MAP0806HT7(J)P
Page 306: ...For HT8 J P E HT8 J P TR model 305 ...
Page 307: ...For T8 J P T7 J P T8P SG T8 J P ID T8 J P T model 306 ...
Page 313: ... 312 For HT8 J P E HT8 J P TR model ...
Page 314: ... 313 For T8 J P T7 J P T8P SG T8 J P ID T8 J P T model ...
Page 320: ... 319 For HT8 J P E HT8 J P TR model ...
Page 321: ... 320 For T8 J P T7 J P T8P SG T8 J P ID T8 J P T model ...
Page 350: ......