Carrier XCT7 Installations- Und Benutzerhandbuch Seite 50

Failure Code
In case of no fault and the system still does not meet the start-up conditions, the host digital display standby code is
as follows:
555.0 The indoor machine capacity is beyond the
outdoor machine capacity of 150% or less
than 50%, then the system indicates standby
555.1 26 degree standby
555.2 Low pressure (gas) standby
555.3 If above 54 degrees , the outdoor cooling
machine will not run
555.5 Power restriction
555.6 Password lock
555.8 No trial running
Indoor failure code list
Indication on Indication on
master unit wired controller
01
02
03
04
05
06
07
08
09
0A
0C
Outdoor Outdoor
failure code failure code
Flash time of LED5 on indoor PCB/
timer LED on remote receiver
01
02
03
04
05
06
07
08
09
0A
0C
The indoor machine capacity is beyond the outdoor
machine capacity of 150% or less than 50%, then the
system indicates standby
If ambient temperature is above 26 degrees, indoor
heating cannot start
Refrigeration Ps<0.23Mpa or heating Ps<0.12Mpa
starts, then system will be on standby
If above 54 degrees, the outdoor cooling machine will
not run
Power will be obstructed if the setting of maximum
capacity output is 0%
Password lock system to set the maximum operating
time to the system for standby
No trial running
Failure code definition
1 Indoor ambient temp. sensor Ta failure
2 Indoor coil temp. sensor Tc1 failure
3 Indoor coil temp. sensor Tc2 failure
4 Indoor TW sensor failure
5 Indoor EEPROM failure
6 Communication between indoor and outdoor failure
7 Communication between indoor and wired controller
failure
8 Indoor drainage failure
9 Indoor repeated address
10 Indoor repeated central control address
12 50Hz zero crossing fault
20 Outdoor corresponding failure
43
resumable