Carrier X-POWER Series - Page 145

Carrier service manual R410A DC Inverter Series
Troubleshooting 163
3. Error code table
Error code
Content Note
E0 Communication error between outdoor units
Only display on faulty slave unit, all the ODU in
standby
E2 Indoor units and master unit communication error
20 minutes after first power on or indoor and
outdoor communication break off over 2
minutes after first power on 20 minutes
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
x represents for a system, 1 is A system, 2 is B
system.
H1 Communication error between 0537 and main chip
H2 Outdoor unit quantities decreasing malfunction Only master unit will display
H3
Outdoor unit quantities increasing malfunction Only master unit will display
xH4 There are 3 times P6 protection in 60 minutes Recovery after power on again
H5 There are 3 times P2 protection in 60 minutes Recovery after power on again
H6 There are 3 times P4 protection in 100 minutes Recovery after power on again
H7
Indoor unit quantities decreasing malfunction
Indoor unit quantities decreasing over 3
minutes. Recovery when detected the max.
number of units.
H8 High pressure sensor malfunction Exhaust pressure ≤0.3Mpa will protect
H9 There are 3 times P9 protection in 60 minutes Recovery after power on again
yHd
Auxiliary unit error(y=1,2,3,e.g, 1Hd stands for
auxiliary unit 1 error)
y represents for a unit which is not No. 0
P1 High pressure protection
P2
Low pressure protection
There are 3 times P2 protection in 60 minutes.
Display H5, can't recover.
xP3 Compressor over current protection
x represents for a system, 1 is A system, 2 is B
system.
P4 Discharge temperature sensor protection
There are 3 times P6 protection in 100 minutes.
Display H6, can't recover.
P5 Pipe temperature sensor protection
xP6 Inverter module protection
x represents the system which it is. There are 3
times P6 protection in 60 minutes.
Display H4, can't recover.
P9
DC Fan protection
There are 3 times P9 protection in 60 minutes.
Display H9, can't recover.
PL The temperature protection of inverter module
C7 3 times of PL protection in 100 minutes
xL0
DC compressor module error
x represents for a system, 1 is A system, 2 is B
system.
xL1 DC bus low voltage protection
x represents for a system, 1 is A system, 2 is B
system.
xL2 DC bus high voltage protection
x represents for a system, 1 is A system, 2 is B
system.
xL3 Reserve
x represents for a system, 1 is A system, 2 is B
system.
xL4 MCE malfunction/simultaneously/cycle loop
x represents for a system, 1 is A system, 2 is B
system.
xL5 Zero speed protection
x represents for a system, 1 is A system, 2 is B
system.
xL6 Reserve
x represents for a system, 1 is A system, 2 is B
system.
xL7 Voltage protection
x represents for a system, 1 is A system, 2 is B
system.
xL8
Protection of the speed change between a
moment before and after is ＞15Hz
x represents for a system, 1 is A system, 2 is B
system.
xL9
Protection of the speed change between
the setting speed and the actual speed ＞15Hz
x represents for a system, 1 is A system, 2 is B
system.