Toshiba MMY-MAP0804HT8P-E - Page 204

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Yes
No
[H03]
Yes
No
Yes No *1: 380-415V ± 10%
Yes
oNoN
No
Yes
No
Yes
No
seYseY
[H02]
esuaCedoc kcehC Check code name
e
suaCedo
c
kcehC 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
Current detective circuit system
error
1. Wiring or connector connection error on A3-IPDU
P.C. board
2. A3-IPDU P.C. board error
Sub-code:
01: Compressor 1, 02: Compressor 2, 03: Compressor 3
Sub-code:
01: Compressor 1,
02: Compressor 2,
03: Compressor 3
Is power voltage
of outdoor unit
normal? *1
Wiring or
connector
connection on
IPDU P.C. board
normal?
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.
Check IPDU P.C. board.
Correct connector connection or wiring.
Exchange MG-CTT
No
Yes
Abnormal overload?
Correct cause of overload.
Correct refrigerant stagnation
in compressor shell.
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sac kc
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ita
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pO
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