Mitsubishi Electric HP120TNU-A Service Handbook page 166

[7-1 Error Code and Preliminary Error Code Lists ]
Error
Prelimi-
(prelim-
Error nary
inary)
Code error
detail
code
code
[0]
5110 1214
01
5111 - -
5112 - -
5115 - -
5116 - -
5201 - -
5201 1402 -
5203 - -
[0]
[115]
[117]
5301 4300
[119]
[120]
[127]
[0]
5305 4305
[135]
5306 4306
[136]
5701 - -
6201 - -
6202 - -
[001]
6600 -
[002]
[001]
6601 -
[002]
[001]
6602 -
[002]
HWE18220_GB
Error code definition
Backup operation
Temperature sensor Heatsink temperature
fault (THHS)
Temperature sensor
Liquid inlet temperature
fault
(TH11)
(BC controller)
Bypass outlet temperature
(TH12)
Temperature sensor
LEV3 outlet temperature
fault
(TH15)
(BC controller)
LEV3 inlet temperature
(TH16)
High-pressure sensor fault (63HS1)
High-pressure sensor fault
(Outdoor unit HPS/BC controller PS1)
Intermediate pressure sensor fault
(BC controller PS3)
Backup operation
ACCT sensor fault
ACCT sensor circuit fault
Open-circuited IPM/Loose ACCT connector
Faulty ACCT wiring
DCL electric current circuit error
Backup operation
Position detection error at startup
Position detection error during operation
Loose float switch connector
Remote controller board fault (nonvolatile memory
error)
Remote controller board fault (clock IC error)
Detection of overlapped address in centralized
control system
Detection of overlapped address in indoor unit sys-
tem
Detection of polarity setting error in centralized
control system
Detection of polarity setting error in indoor unit sys-
tem
Transmission processor hardware error in central-
ized control system
Transmission processor hardware error in indoor
unit system
Searched unit
Notes
O
O (page 40)
O (page 40)
O (page 40)
O (page 40)
O (page 40)
O (page 41)
O O (page 41)
O (page 41)
O
O (page 42)
O (page 43)
O (page 43)
O (page 44)
O (page 44)
O
O (page 45)
O (page 45)
O (page 45)
O (page 46)
O (page 46)
O O O O O (page 46)
O O O O O (page 46)
O O O (page 47)
O O O (page 47)
O O O O O (page 48)
O O O O O (page 48)
3
chapter 7 -