[H05]
Ye
s
Ye
s
No
No
es
ua
C
ed
oc
kc
eh
C
Check code name
Outdoor discharge temperature sensor (TD1) misconnection
1.
Coming-off of
TD1 sensor
2.
Misinstallation
of
TD1,
TD2
sensor, miswiring,
characteristics
trouble
of resistance
value
Is there no miswiring or
misinstallation on
TD1/TD2 sensors?
Are resistance
characteristics of
TD1
sensor normal?
Correct miswiring/misinstallation.
TD1: CN502, white TD2: CN503, pink
No
Ye
s
Is
TD1 sensor
installed correctly?
Correct installation of sensor
.
Check I/F P
.C. board.
Sensor
trouble
Replace the sensor.
−
19
2
−
No
No
No
Ye
s
Ye
s
Ye
s
Ye
s
No
No
Ye
s
No
Ye
s
(Check with miswiring check function of outdoor unit.)
Ye
s
No
No
Ye
s
No
Ye
s
No
Ye
s
Ye
s
No
No
Cleaning
Cleaning
[H06]
Cause
Check code
Check code name
Low-pressure protective operation
1.
Service valve close
2.
P
S
sensor
trouble
3.
SV2, SV4 circuit
trouble
4.
Miswiring of communication between indoor and outdoor
5.
Indoor/outdoor fan and condenser
trouble
6.
Indoor/outdoor PMV clogging
7.
Indoor/outdoor heat exchanger clogging
8.
Refrigerant shortage
Are
service valves of
gas and liquid pipe of
outdoor unit fully
opened?
Are
characteristics of
low-pressure sensor
normal?
Are SV2 and SV4 circuits normal?
Is any indoor unit in a dif
ferent line
connected?
Does indoor
fan normally operate in cooling season?
Is there
clogging of indoor air filter
or heat exchanger?
Is indoor PMV
normal?
Is outdoor fan
normally operated in
heating season?
Is there
clogging of outdoor heat
exchanger?
Is outdoor PMV
normal?
Is connector
connection or coil
normal?
Is there clogging on whole valve?
Are
following items
concerned to indoor fan
motor normal?
1. Connector connection
Condenser
2.
Motor
3. 4. Fan
Open service valves fully
.
Exchange low-pressure sensor
.
Correct SV2 and SV4 circuits.
Correct wiring.
Repair
failure
parts.
Check indoor P
.C. board.
Failure
Replace
Ye
s
Refrigerant shortage or clogging or pipe deformed
Repair
failure
parts.
Repair
failure
parts.
Refrigerant shortage, clogging, pipe deformed
Replace PMV body
.
Check outdoor I/F P
.C. board.
Failure
Replace
In cooling season, go to (A) In heating season, go to (B)
(A) Cooling
(B) Heating
No
Check miswiring, misinstallation and connector connection.
No
*1. Pressure by pressure gauge (Check joint)
2.
Pressure display on 7-segment display
3.
Output voltage of I/F P.C. board
If 1 and 2, 3 are different,
a failure
of pressure sensor is considered.
If 2 and 3 are different, check I/F P.C. board.
Is indoor fan system normal?
Fan crack•
• Fan coming-of
f
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 ...