– 214 –
(A)
Ye
s
Ye
s
Ye
s
Ye
s
No
No
No
No
No
Ye
s
Ye
s
Ye
s
No
Ye
s
No
No
No
[P04]
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
Error concerning high-pressure
SW
1.
High-pressure SW error
2. Service
valve
closed
3. Pd
sensor
error
4.
Indoor/outdoor fan error
5. Indoor/outdoor
PMV
choke
6.
Indoor/outdoor heat exchanger clogging, air short
circuit
7.
SV2 circuit error
8.
SV4 circuit error
9.
SV5 circuit error
10. Discharge line check valve malfunction
1
1. Refrigerant overcharge
Sub-code:
01: Compressor 1, 02: Compressor 2, 03: Compressor 3
Note) High-pressure SW is
normally closed. (B contact)
Does high-pressure SW
operate?
Are parts of high-
pressure SW normal?
Is service valve fully
opened?
Are characteristics of
high-pressure sensor
normal?
Does cooling outdoor
fan normally operate?
Is there any
interference of heat-
exchanging of outdoor unit?
1. Heat exchanger clogging
2. Air
short
circuit
Is there any crack or
coming-of
f of fan?
Connector connection, fan
IPDU, fan motor
, wiring
Connectors: PMV1: CN300,
PMV2: CN301, PMV4: CN303
Is circuit cabling
normal?
Check parts.
Failure
Replace
Check and correct
cabling.
Open service valve
fully
.
Replace the high-
pressure sensor
.
Repair faulty parts.
Repair outdoor PMV
.
Eliminate the
interference.
Check A3-IPDU
P
.C.
board.
Failure
replace
(B) Cooling operation
Cooling
To
(
B
)
Heating
To
(
C
)
Reset power supply
, and start a test
operation corresponded to the season.
Is outdoor PMV normal?
1. Connector connection
2. Cabling
3. Coil
4. V
alve body
5. Outdoor I/F P
.C. board
Ye
s
No
Ye
s
Ye
s
No
Ye
s
No
No
No
Ye
s
Ye
s
No
[P03]
e
s
u
a
C
e
d
o
c
k
c
e
h
C
Check code name
Discharge temp
TD1 error
Are service
valve of gas and liquid
sides fully opened?
Open service valve fully
.
Repair outdoor PMV
.
Replace TD1
sensor
.
Check 4-way valve.
Correct installation of valve
coil.
Replace SV41 valve.
Correct wiring
Refrigerant shortage,
clogging, pipe breakage
1.
Service valve of outdoor unit closed
2. Outdoor
PMV
error
3. TD
sensor
error
4.
Refrigerant shortage, clogging of refrigerant piping
5.
4-way valve error
6.
SV4 circuit leakage, misinstallation
Are
characteristics of
TD1 sensor resistance
normal?
Does
discharged refrigerant
gas leak to suction side
through 4-way
valve?
Are indoor units of a
dif
ferent refrigerant line
connected?
Connectors: PMV1: CN300, PMV2: CN301, PMV4: CN303
(Check it using the miswiring check
function of the outdoor unit.)
(Check there is no pipe breakage, and
then recharge the refrigerant.)
Is outdoor PMV normal?
1. Connector connection
2. Wiring
3. Coil
4. V
alve body
5. Outdoor I/F P
.C. board
SV4 circuit
1.
Are SV41, SV42 and
SV43 valve coils
installed correctly?
2. Is SV41 circuit sealed
correctly (no leakage)?
* Se
e “Ou
tdo
or u
n
it t
e
m
p
e
ra
tur
e
sen
s
or
cha
ra
cteristics” on
“8-9.
Sen
sor Ch
aracte
rist
ics”.
Summary of Contents for MMY-MAP0804HT7JP
Page 23: ... 22 1 Wiring Diagrams 1 1 Outdoor Unit Models MMY MAP0804 MAP1004 and MAP1204 ...
Page 24: ... 23 Models MMY MAP1404 and MAP1604 ...
Page 35: ... 34 1 2 10 Slim Duct Type AP024 AP027 Models MMD AP0244SPH MMD AP0274SPH ...
Page 38: ... 37 1 2 13 High Wall Type 3 series Models MMK AP0073H AP0093H AP0123H AP0153H AP0183H AP0243H ...
Page 52: ... 51 2 5 Parts Layout in Outdoor Unit 8 10 12HP Model MMY MAP0804 MAP1004 MAP1204 ...
Page 53: ... 52 14 16HP Model MMY MAP1404 MAP1604 ...
Page 57: ... 56 2 7 2 Inverter P C board for compressor MCC 1596 A3 IPDU ...
Page 323: ......