INSTALLATION INSTRUCTIONS
Failure Code
In the case of no fault, if the system does not meet the start-up condition, the host digital display standby code.
555.0
Indoor machine capacity beyond the
outdoor machine capacity of 150% or
less than 50%, standby system
555.1
79 °F(26 °C) standby
555.2
Low pressure (gas) standby
555.3
125 °F(54 °C) above the cooling
outdoor machine is not running
555.5
Power restriction
555.6
Password lock
555.8
No trial running
Indication on
Indication on wired
main unit
controller
01
01
02
02
03
03
04
04
05
05
06
06
07
07
08
08
09
09
0A
0A
0C
0C
Outdoor failure code
Outdoor failure code
40
Indoor machine capacity beyond the outdoor
machine capacity of 150% or less than 50%, standby system
Ambient temperature above 79 °F(26 °C) indoor heat can not boot
Refrigeration Ps < 33 psi or heating Ps < 17 °° start, system standby
125 °F(54 °C) above the cooling outdoor machine is not running
Power inhibit setting maximum capacity output is 0%
Password lock system to set the maximum operating time to the system
standby
No trial running
Flash times of LED5 on indoor PCB/
timer LED on remote receiver
1
2
3
4
5
6
7
8
9
10
12
20
Resumable
Failure code definition
Indoor ambient temp sensor Ta failure
Indoor coil temp sensor Tc1 failure
Indoor coil temp sensor Tc2 failure
Indoor TW sensor failure
Indoor EEPROM failure
Communication between indoor and
outdoor failure
Communication between indoor and wired
controller failure
Indoor drainage failure
Indoor repeated address
Indoor repeated central control address
50Hz zero crossing fault
Outdoor corresponding failure
31-5000572 Rev. 1