Carrier 38VS125C7SHQEE, Инструкция по установке и эксплуатации, Страница: 28 / 190

Inverter outdoor unit failure code
Failure codes
Digital tube
indication
on master
uni
t
Failure code
definition
Failure description Remarks
20-0 Defrosting temp.
sensor Te failure
AD value is below 11 (open circuit) or over 1012
(short circuit) for 60 seconds, in cooling mode, if
the sensor is abnormal, the unit does not deal with
it, besides, during defrosting and within 3 minutes
after defrosting, there is no alarm
Resumable
20-1 Defrosting temp.
sensor Tc failure
21
Ambient temp.
sensor Ta failure
AD value is below 11 (open circuit) or over 1012 (short
circuit) for 60 seconds, during defrosting and within 3
minutes after defrosting, there is no alarm
Resumable
22
Suction temp.
sensor Ts failure
AD value is below 11 (open circuit) or over 1012 (short
circuit) for 60 seconds, during defrosting and within 3
minutes after defrosting, there is no alarm
Resumable
23
Discharging temp.
sensor Td failure
After compressor runs for 5 minutes, AD value is
below 11 (open circuit) or over 1012 (short circuit)
for
60 seconds, in the course of start-up, defrosting and
within 3 minutes after defrosting, there is no alarm
Resumable
26
Indoor
communication
failure
For 200 consecutive cycles, no communication with any
indoor units
Resumable
26-1 For 300 continuous seconds, the searched indoor
quantity is less than the set quantity.
26-2 For 300 continuous seconds, the searched indoor
quantity is more than the set quantity.
30
High pressure
switch HPS failure
If disconnected for 50 ms continuously, an alarm sounds.
If alarm sounds thrice in an hour, confirm the failure
Once confirmed,
non-resumable
33 EEPROM failure EEPROM failure
Once
confirmation,
un-resumable
34
Discharging temp.
too high protection
(Td)
Td≥239°F(115°C) at 25 msec intervals twice
continuously, and over the set value, then stops, and an
alarm sounds; 3 minutes later, resumes automatically. If it
occurs thrice in an hour, confirm the failure.
Once confirmed,
non-resumable
35
4-way valve
reversing failure
After 4-way valve is charged for 3 minutes, if the below
conditions can be met for 10 continuous seconds, it is
communicating successfully:
1.
this outdoor compressor is running normally
2.
Pd-Ps≥87PSI(0.6MPa); otherwise, the system
alarms indicate reversing failure.
Once confirmed,
non-resumable
43
Discharging temp.
sensor Td too low
protection
In normal operation, if Td<CT+50°F
(10°C) for 5 continuous minutes, the unit stops and
sounds the alarms. 2 minutes and 50 seconds later,
resumes automatically. If
it occurs thrice in an hour, confirm the failure. After fixed
frequency compressor alarms, inverter compressor will
continue to run. If fixed frequency compressor has been
locked thrice, the unit will stop and sound the alarm.
Once confirmed,
non-resumable
46
Communication
with inverter board
failure
No communication for 30 seconds Resumable
49
Low pressure
switch LPS failure
If disconnected for 50 ms continuously, alarm will sound.
If alarm sounds thrice in an hour, confirm the failure
Once
confirmed, non-
resumable”
21