Ye
s
No
Ye
s
No
*1: 380-415V ±
10%
Ye
s
No
No
No
Ye
s
No
Ye
s
No
Y
es
Y
es
[H02]
Cause
Check code
Check code name
Compressor error (Lock)
MG-CTT
: Magnet contactor
1.
Outdoor unit power line error
2.
Compressor circuit system error
3. Compressor
error
4.
Refrigerant stagnation in compressor shell
5.
A3-IPDU P
.C. board error
6. MG-CTT
error
Sub-code:
01: Compressor 1,
02: Compressor 2
Is power voltage
of outdoor unit
normal? *1
Does voltage drop
occur when other
compressor
starts?
Is wiring
or connector
connection on
A3-
IPDU P
.C. board
normal?
Is MG-CTT
normal? *2
Is there no
refrigerant stagnation
in compressor shell?
Is compressor
normal? *3
Is case heater output
normal?
Correct power line.
Correct connector connection
or wiring.
Exchange MG-CTT
No
Ye
s
Abnormal overload?
Correct cause of overload.
Correct refrigerant stagnation
in compressor shell.
Check case heater
.
Operation starts.
Compressor error
Check A3-IPDU
P
.C.
board.
*3 Check the following items mainly
.
1. Existence of abnormal sound and abnormal
vibration during operation or starting
2.
Abnormal overheat of case during operation or
stop time (Never touch with hands.)
3. Current of compressor lead during operation or
starting time (No sudden change of current?)
2 Check connection wiring *
Check operation of MG-CTT
Check the short circuit of MG-CTT
Ye
s
No
Ye
s
No
* 380-415V ±
10%
Ye
s
No
Ye
s
No
Ye
s
[H01]
V
U
W
Cause
Check code
Check code name
Is power voltage
of outdoor unit
normal?
Does voltage
drop occur when
other compressor
starts?
Is winding
resistance between
phases of corresponding
compressor normal?
(Note 1)
Is not it an abnormal
overload?
Is connection
of wiring or connection of
connector on
A3-IPDU P
.C.
board normal?
Correct power line.
Correct connector connection
or wiring.
Compressor error (Motor
burning, etc.)
Correct cause of overload.
Check IPDU P
.C. board.
Compressor breakdown
Rotor-
stop
power distribution
has
occurred.
1.
Outdoor unit power line error
2.
Compressor circuit system error
3. Compressor
error
4.
Abnormal overload in operation
5.
A3-IPDU P
.C. board error
Sub-code:
01: Compressor 1,
02: Compressor 2
No
T
ake of
f lead wire of compressor
.
Check resistance between windings:
1.
It is normal if there are 0.1
Ω
to
1
.
0
Ω
.
2.
Check insulation between outdoor cabinet and terminal:
It is normal if there are 10M
Ω
or more.
Note 1
After checking the output, when connecting the compressor
lead again to the compressor terminal, check surely there is
no distortion on the Fasten receptacle terminal.
If it is loosened, caulk it with pinchers, etc and then connect
lead to the terminal firmly
.
Details of compressor
power connecting section
−
1
9
9
−
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 ...
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