Mitsubishi Electric QAHV Série Manuel D'installation & D'instructions page 64

Error
code *1
(PCB *2 Error type
RC
M-NET)
Inverter Electric IPM error
error current
related
4250
errors
4255
during
operation
( 101 )
ACCT overcurrent
4250
4255
102
( )
DCCT overcurrent
4250
4255
103
( )
Overcurrent relay trip
4250
(momentary value) (During
4255
operation)
106
( )
Overcurrent relay trip (effective
4250
value) (During operation)
4255
107
( )
Short-circuited IPM/ground fault
4250
(During operation)
4255
104
( )
Overcurrent error due to a short-
4250
circuited (During operation)
4255
105
( )
Current IPM error
related
(At startup)
prob-
4250
lems at
4255
start up
101
( )
ACCT overcurrent
4250
(At startup)
4255
102
( )
DCCT overcurrent
4250
(At startup)
4255
103
( )
Overcurrent relay trip
4250
(momentary value) (At startup)
4255
106
( )
Overcurrent relay trip
4250
(effective value) (At startup)
4255
( 107 )
Cause
(Installation/Setting error)
Inter-phase voltage drop
(Inter-phase voltage at or below 180 V)
GB-64
Cause
(Parts problems)
• INV board fault (4250)
• Fan board fault (4255)
• Ground fault of the compressor
• Coil problem
• IPM error (loose terminal screws,
cracked due to swelling)
• Items listed under "Heatsink overheat
protection" below
• INV board fault (4250)
• Fan board fault (4255)
• Ground fault of the compressor
• Coil problem
• IPM error (loose terminal screws,
cracked due to swelling)
• Ground fault of the compressor
• IPM error (loose terminal screws,
cracked due to swelling)
• Ground fault of the compressor
• Shorted output wiring
• INV board fault (4250)
• Fan board fault (4255)
• Ground fault of the compressor
• Coil problem
• IPM error (loose terminal screws,
cracked due to swelling)
• Items listed under "Heatsink overheat
protection" below
• INV board fault (4250)
• Fan board fault (4255)
• Ground fault of the compressor
• Coil problem
• IPM error (loose terminal screws,
cracked due to swelling)
Error reset *3
Unit
side Remote
(PCB)
Operation
SWS1
SW