Carrier XCT7 Installations- Und Benutzerhandbuch Seite 35

Failure codes
Failure code
display on the
Failure code
outdoor digital
display
boar
d
The temp. of
the module fin
is too high
112
The inverter input
power voltage is
114
abnormal
Abnormal
communication
between the
inverter PCB and
116
the control PCB
The inverter
module over
117
current (software)
118 Compressor
s tart-up failure
Current detection
circuit failure
119
Power supply of
inverter module
121
board is abnormal
The temp. sensor
of inverter is
122
abnormal.
124 Inverter power
supply failure
126 Inverter unknown
failure code
definition
The temp. of the module fin > 94C;
failure alarm sounds. The temp. of the
module fin < 94C; the inverter PCB will
recover automatically.
The voltage < DC420V; failure alarm
sounds.
The voltage > DC420V; the inverter PCB
will recover automatically.
The voltage > DC642V; failure alarm
sounds.
The voltage < DC642V; the inverter PCB
will recover automatically.
The power supply of inverter is interrupted
instantaneously.
If no communication signal is detected
for 30 seconds, failure alarm sounds.
After detection, inverter PCB will recover
automatically.
Module rectifier overcurrent
Module overload
Module software over current
The compressor failed to s tart for 5
consecutive times.
The module rectifier side current detection
circuit is abnormal.
The sensor used for current detection of
inverter controller is abnormal,
disconnected, or connected incorrectly.
Power supply of inverter board is
interrupted.
The resistance of inverter temperature
sensor is abnormal or not connected.
inverter power supply failure
inverter unknown failure code
Failure code definition
28
Remarks
Resumable