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21
Failure code
Digital tube
indication
on master
unit
Indication
on wired
controller
(hex)
Failure code
denition
Failure description Remarks
39-1 39-1
Compression ratio
too high protection
After compressor is running, compression ratio 8. for
continuous 5 minutes stop and alarm.2 minutes and 50
seconds later, resume automatically, if it occurs 3 times in
an hour, conrm the failure.
Once
conrmation,
un-resumable
39-2 39-2
Compression ratio
too low protection
In normal operation, compression ratio <1.8 for continuous
5 minutes stop and alarm.2 minutes and 1 seconds later,
resume automatically, if it occurs 3 times in an hour, conrm
the failure.
Once
conrmation,
un-resumable
40 40
High pressure
sensor Pd too high
protection
In normal operation, Pd>=4.15Mpa for continuous 50ms,
alarm and stop. 2 minutes and 50 seconds later, resume
automatically, if it occurs 3 times in an hour, conrm the
failure.
Once
conrmation,
un-resumable
43 43
Discharging temp.
sensor Td too low
protection
In normal operation, if Td<CT+50°F
(10°C) for continuous 5 minutes, the unit stops and alarms.2
minutes and 50 seconds later, resume automatically. If it
occurs 3 times in an hour, conrm the failure. After xed
frequency compressor alarms, inverter compressor will
continue to run. If xed frequency compressor has been
locked for 3 times, the unit will stop and alarm.
Once
conrmation,
un-resumable
46 46
Communication
with inverter board
failure
No communication within 30 seconds continuously Resumable
53 53
CT current is too
low or current
sensor fault
3 minutes after recovery
3 times in an
hour, conrm
failure; once
conrmation,
un-resumable
54 54
Valve plate module
communication
fault
Cannot receive valve plate module signal in 200 continuous
rounds or receive wrong data,recover automatically when
received right data.
Resumable
57 57
Communication
failure between
valve plate
module and host
computer(sending
by valve plate)
Communication failure between valve plate module and
host computer
Resumable
58 58
Tc1 temp sensor
of valve plate
error(sending by
valve plate)
Tc1 temp. sensor cannot connect with valve plate module Resumable
59 59
Tc2 temp sensor
of valve plate
error(sending by
valve plate)
Tc2 temp. sensor cannot connect with valve plate module Resumable
60 60
Valve plate module
error(sending by
valve plate)
Reserved Resumable
61 61
Valve plate module
error(sending by
valve plate)
Reserved Resumable
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