Carrier XCT7 Installations- Und Benutzerhandbuch Seite 31

Failure codes
Digital tube
indication on
Failure code
t
master uni definition
Power supply of
inverter board is
121
abnormal
Radiator
temp. sensor
122
of transducer
abnormal
Transient over
current in IPM
123
module rectifier
side hardware
When there is no failure, if the start-up condition cannot be met, the digital tube on master unit will display stand-by code:
Standby state of
capacity overmatch
0
555.
555.1 Outdoor ambient temperature
too high (heating)
555.3 Outdoor ambient temperature
too high or too low (cooling)
Indoor failure code list
Indication Indication on
on master wired con-
t troller
uni
01 01
02 02
03 03
04 04
05 05
06 06
07 07
08 08
09 09
0A 0A
Outdoor Outdoor
failure
failure code
code
Failure description
Power supply of inverter board is broken suddenly
Resistor of temp. sensor abnormal or temp.
sensor disconnected
Transient over current in IPM module rectifier side
hardware
When the ratio of indoor horse power and outdoor horse
power is less than 50% or more than 130%, the system is in
standby mode.
Ta>27°C, Standby
Ta>54°C or Ta<-15°C, Standby
Flash times of LED5
on indoor PCB/timer
Failure code definition
LED on remote re-
ceiver
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 failure between indoor and outdoor unit
7 Communication failure between indoor and wired controller
8 Indoor drainage failure
9 Indoor repeated address
10 Indoor repeated central control address
20 Outdoor corresponding failure
24
Remarks
Thrice an hour,
confirm failure;
once confirmed,
non-resumable
Resumable