58
Failure code
LD
indication
on master
unit
Indication
on wired
controller
(hex)
Failure code
definition
Failure description
Remarks
43-0
2B
Discharging
temp. sensor
Tdi too low
protection
In normal operation, if Td<CT+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, confirm the failure. After fixed
frequency compressor alarms, inverter
compressor will continue to run. If fixed
frequency compressor has been locked
for 3 times, the unit will stop and alarm.
Once
confirmation,
Un-
Resumable
45
2D
Communication
among
outdoors
failure
No communication within 3 minutes
continuously
Resumable
46
2E
Communication
with inverter
module failure
No communication within 30 seconds
continuously
Resumable
50
32
The LEV is
leakage
When the unit system running in heating
mode, the LEV of the stop unit is leakage
Un-
Resumable
75-0
4B
Small drop
between high
pressure and
low pressure
If Pd-Ps≤0.35MPa continues for 3
mins, this outdoor will be stopped for
protection.
Restart in 5 mins after the protection
stop.
If the protection stop occurs over 9 times
in three hours, Error stop.
Once
confirmation,
Un-
Resumable
76-0
4C
Incorrect
outdoor qty,
address and
capacity setting
Slave unit qty setting is not in
conformance with indoor EEPROM data
Reset
76-1
4C
Slave unit address setting is not in
conformance with indoor EEPROM data
76-2
4C
Slave unit Hp setting is not in
conformance with indoor EEPROM data
