Carrier 38VS125C7SHQEE, Инструкция по установке и эксплуатации, Страница: 30 / 190

Failure codes
Digital
tube
indication
on master
uni
t
Failure code
definition
Failure description Remarks
71-0 Upper DC motor
blocked
Running at a speed below 20rpm for 30s, or at a speed
70% lower than the target for 2 minutes, 2 minutes and
50 seconds later after stop, resumes automatically. If it
occurs thrice in an hour, confirm the failure.
Once confirmed,
non-resumable
71-1 Lower DC motor
blocked
81
IPM module
High
temperature
protection
IPM modular temp.≥185°F(85°C)
Thrice an hour,
confirm failure;
once confirmed,
non-resumable
82 Compressor
current protection
Compressor current exceeds specified value, 3
minutes after recovery
83 Outdoor model set
error
Model and the number of fans do not match Non-resumable
108
Transient over
current in IPM
module rectifier
side software
Transient over current in IPM module rectifier side
software
Thrice an hour,
confirm failure;
once confirmed,
non-resumable
109 Current detection
circuit abnormality
Current detection circuit abnormality
110 IPM modular
protection (F0)
IPM modular over current, in short circuit, over
heat, voltage of control circuit too low .
111 Compressor out of
control
In the course of compressor start-up or running, the unit
cannot detect the rotor position, or does not connect with
the compressor.
112
Radiator of
transducer temp.
too high
Radiator temp. too high
113 Transducer
overload
Output current of transducer is too high
114
Voltage of DC bus
line of transducer
too low
Voltage of power source is too low
Thrice an hour,
confirm failure;
once confirmed,
non-resumable
115
Voltage of DC bus
line of transducer
too high
Voltage of power source is too high
116
Communication
abnormal between
transducer and
control PCB
Voltage of DC bus line of transducer too high Resumable
117
Transducer over
current (software)
Compressor start-up fails 5 times continuously,
or compressor runs down till it stops due to
overcharging or overheating
Thrice an hour,
confirm failure;
once confirmed,
non-resumable
118 Compressor
start-up failure
The sensor used for current detecting of transducer
is abnormal, disconnected, or incorrectly connected
119
Detecting circuit of
transducer current is
abnormal
Current detection sensor of frequency controller
is abnormal, disconnected, or connected
incorrectly.
120
Power supply
of transducer
abnormal
Power supply of transducer is broken suddenly
23