Ye
s
Ye
s
No
No
[F18]
Chec
k code
Check code name
Indoor
TRA sensor
trouble
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
value nor
mal?
Correct connection of connector
.
Replace
TRA
sensor
.
Check indoor P
.C. board.
Failure
→
Replace
* See "Indoor unit temperature sensor characteristics" on "8-
10
. Sensor Characteristics".
Ye
s
Yes
Yes
No
No
Ye
s
No
[F23]
No
Connector: CN500, White
Check code
Check code name
P
S
sensor
trouble
Cause
Output voltage
trouble
of P
S
sensor
Is connection of P
S
sensor connector
correct?
Are output
voltage characteristics
of P
S
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
trouble
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 different,
a trouble
of pressure
sensor itself is considered. If (2) and (3) are different, check interface P
.C. board.
−
18
9
−
[F24]
Check code
Check code name
P
D
sensor
trouble
Cause
Output voltage
trouble
of P
D
sensor
It is output voltage
trouble
of P
D
sensor. Check disconnection of connection of connector (P
D
sensor:
CN501, red) circuit and output voltage of sensor. If the sensor is normal, replace outdoor I/F P
.C. board.
Summary of Contents for MMY-MAP0806FT7(J)P
Page 32: ... 31 1 2 Single port FS Unit RBM Y1123FE FE2 RBM Y1803FE FE2 ...
Page 33: ... 32 RBM Y2803FE FE2 ...
Page 302: ...MMY MAP0806FT8 J P E MAP1006FT8 J P E MMY MAP0806FT8 J P TR MAP1006FT8 J P TR 301 ...
Page 307: ... 306 MMY MAP1206FT8 J P E MAP1406FT8 J P E MMY MAP1206FT8 J P TR MAP1406FT8 J P TR ...