Carrier X-POWER Series Service Manual page 145

Carrier service manual
3. Error code table
Error code
E0 Communication error between outdoor units
E2 Indoor units and master unit communication error
E4 T3 or T4 temperature sensor error
E5 Voltage error
E7 Discharge temperature sensor error
E8 Outdoor unit address error
xH0 Communication error between DSP and the main chip
H1 Communication error between 0537 and main chip
H2 Outdoor unit quantities decreasing malfunction
H3 Outdoor unit quantities increasing malfunction
xH4 There are 3 times P6 protection in 60 minutes
H5 There are 3 times P2 protection in 60 minutes
H6 There are 3 times P4 protection in 100 minutes
H7 Indoor unit quantities decreasing malfunction
H8 High pressure sensor malfunction
H9 There are 3 times P9 protection in 60 minutes
Auxiliary unit error(y=1,2,3,e.g, 1Hd stands for
yHd
auxiliary unit 1 error)
P1 High pressure protection
Low pressure protection
P2
xP3 Compressor over current protection
P4 Discharge temperature sensor protection
P5 Pipe temperature sensor protection
xP6 Inverter module protection
P9 DC Fan protection
PL The temperature protection of inverter module
C7 3 times of PL protection in 100 minutes
DC compressor module error
xL0
xL1 DC bus low voltage protection
xL2 DC bus high voltage protection
xL3 Reserve
xL4 MCE malfunction/simultaneously/cycle loop
xL5 Zero speed protection
xL6 Reserve
xL7 Voltage protection
Protection of the speed change between a
xL8
moment before and after is ＞15Hz
Protection of the speed change between
xL9
the setting speed and the actual speed ＞15Hz
Troubleshooting
Content
R410A DC Inverter Series
Note
Only display on faulty slave unit, all the ODU in
standby
20 minutes after first power on or indoor and
outdoor communication break off over 2
minutes after first power on 20 minutes
x represents for a system, 1 is A system, 2 is B
system.
Only master unit will display
Only master unit will display
Recovery after power on again
Recovery after power on again
Recovery after power on again
Indoor unit quantities decreasing over 3
minutes. Recovery when detected the max.
number of units.
Exhaust pressure ≤0.3Mpa will protect
Recovery after power on again
y represents for a unit which is not No. 0
There are 3 times P2 protection in 60 minutes.
Display H5, can't recover.
x represents for a system, 1 is A system, 2 is B
system.
There are 3 times P6 protection in 100 minutes.
Display H6, can't recover.
x represents the system which it is. There are 3
times P6 protection in 60 minutes.
Display H4, can't recover.
There are 3 times P9 protection in 60 minutes.
Display H9, can't recover.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
x represents for a system, 1 is A system, 2 is B
system.
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